Magazine for Heating Technology 42th Year 2010 Issue 2

Ambient heat – safe, free and carbon-neutral

Content

Publisher: Ambient heat plays an important Editorial Products Dr. Martin Viessmann role in the energy mix – Page 6 Editorial office: 2 German economy recovers 22 Viessmann Vitocal 300-G Manfred Greis Jörg Schmidt from the financial crisis − Efficient heating with Michael Wagner will the heating market also geothermal or groundwater Doris Hofmann Alexander Tinter bounce back? sources Wolfgang Rogatty Carsten Lucaßen Bachinger Öffentlichkeitsarbeit: 4 News 23 New low-temperature Wolfgang Exler-Bachinger radiators for high efficiency Dirk Brandes Ambient heat Photographs: 24 Pyromat ECO from Köb Bergische Universität Wuppertal German Energy Agency (dena), Berlin 6 Ambient heat – free energy Efficient log burning boilers DIHK | German Federation of Chambers of from the environment for home and commercial Commerce dpa Picture-Alliance GmbH, Frankfurt applications Karl Duschek Company Frank Feisel hessenENERGIE, Wiesbaden Practical applications HNA – Frankenberger Allgemeine 12 Member of the Viessmann Kempinski Hotel, Yinchuan Rolf Kosecki, Sportbild-Agentur, Bonn Group since 2008: 26 Seven Vitomax boilers at the mauritius images GmbH, Mittenwald KWT Kälte-Wärmetechnik AG Kempinski Hotel Yinchuan ”Studio-S“ – Seekamp GmbH, Bremen

Layout: 13 New company founded 28 Viessmann industrial boiler Stankowski + Duschek Alexander Tinter Operational start-up of the Heat pump expertise bundled expertise at StoVerotec GmbH biogas system in Allendorf with in Allendorf Efficient steam boiler system Lithography and printing: honoured guests – Page 14 Bernecker MediaWare AG for new production facility 34212 Melsungen 14 Biogas system started up at Germany Allendorf site Viessmann Selection Editorial office address: Viessmann Werke GmbH & Co KG Corporate Communications 16 2010 Bavarian Energy Award 29 Viessmann 2010/2011 35107 Allendorf (Eder) goes to Schmack Biogas Selection catalogue with great Germany Phone: +49 (0) 64 52 / 70 24 93 gift ideas Fax: +49 (0) 64 52 / 70 54 93 17 Viessmann supports students Email: [email protected] Internet : www.viessmann.de Team from Wuppertal Sport University builds a net zero Cover: Symbolic depiction of ambient heat sources energy house for the Solar 30 Athletes from the Viessmann (Artwork: Karl Duschek) Decathlon Europe team highly motivated at

2nd cover page: the opening of the 2010/2011 Christmas cheer at Viessmann Industry season headquarters in Allendorf

3rd cover page: 18 Environmentally friendly, 31 New athletes in the Depiction of the birth of Christ on an oven plate designed by Philipp Soldan. The 5-star Kempinski Hotel reliable and affordable energy Viessmann Team opened in January in Yinchuan, supply China relies on Viessmann New energy concept from the Classics heating technology – Page 26 German federal government 32 The Christmas message on Studies the stove plates of Philipp Soldan (1500–1569) 20 Researchers say: 100 percent renewable energy is possible

Portrait

21 Bern – business hub and tourist magnet

1 German economy recovers from the financial crisis − will the heating market also bounce back?

National economies have Negative trend in renewable Goal of the energy concept: percent of today’s primary energy developed at different paces energies climate-neutral buildings consumption, which basically in the first year following the can be supplied entirely through international financial crisis. The The German heating market The ambitious goals of the energy renewable energy. German economy recovered more however did not live up to concept issued by the German quickly than expected. It grew expectations, losing roughly four government this past autumn have The European Energy Performance significantly more strongly (3.6 percent of its volume this year been thwarted for the time being of Buildings Directive (EPBD) percent) than predicted by the despite the tremendous need for by this decline. But the concept is currently being transformed by renowned DIW German Institute modernisation. The situation is the first of its kind to emphasise Member States into national law for Economic Research in early particularly critical for renewable that the modernisation of building mandates the passive house summer (1.9 percent). According energy products such as solar energy systems is essential to standard for new construction to German Minister of Economics thermal systems, heat pumps and achieving the energy policy goals. as of 2020, and 2018 for public Rainer Brüderle, this positive biomass boilers. Overall losses This is a welcome development, buildings. development has primarily to do here are in the double digits, and as the debate on energy policy with strong demand for German log burning boilers in particular lost has focused almost exclusively products abroad. Apparently it 35 percent of their market volume. on generating electricity and Structural shift continues paid off that Germany, unlike other transport up to now. The aim is European countries, still has a to make existing buildings largely This all leaves no doubt that the largely intact, comprehensive chain climate neutral; in other words, by structural changes in our industry of real economic value creation, 2050, German residential buildings towards high-efficiency technology shouldered in particular by SMEs. should account for only 20 and renewable energies will continue or even accelerate

2 Editorial

The revitalization of the market would be a major step towards an environmentally friendly, reliable and affordable energy supply in accordance with the energy concept of the German government. A win- win situation for all those involved – and for the environment as well.

systems must be considered as Another key issue is opening up separate costs. the heating market for biogas. This means biogas must be fully Enhanced efficiency also saves recognised as a renewable energy energy costs, which in turn helps when used in high-efficiency to finance the improvement condensing equipment. measures. Finally, investors are looking for As a result, it is recommended long-term perspectives for the to start modernising the energy future, so they can be sure that systems of buildings immediately decisions made today will still and not wait until regulations make be the right ones tomorrow. it mandatory. Awareness certainly needs to be raised in this area.

Politics must create the When policy makers, the media proper framework and all other industry participants are included in this process, it Policy makers are called on to will be possible to revitalise the despite the decline in 2010, Critical reception of a good create a framework as soon as market in 2011 and reverse this and a large amount of work lies concept possible to make modernising year’s negative development ahead for us in terms of system building energy systems in renewable energies. This technology and building shells. In addition to these factors, interesting for investors. would be a major step towards communication of the energy Compulsory measures tend to an environmentally friendly, But in light of this background, concept initially worsened the be met with resistance. Now is reliable and affordable energy why has there been no movement existing insecurity of many the time to deliver on promises supply in accordance with the in the market in 2010? home owners. Media articles to analyse existing proposals, energy concept of the German and editorials hyped the dreaded as provided for in the energy government. A win-win situation The German Industrial Association “compulsory modernisation” and concept in many ways, and for all those involved – and for the for Building Services, Energy and in particular the “huge costs” develop concrete strategies and environment as well. Environmental Engineering (BDH) which would burden building programmes. is convinced that the unreliability owners. We wish all our customers, of government subsidies for These measures should include business partners, friends and renewable energies due to This certainly didn’t help the initial attractive, long-term subsidies, employees a Merry Christmas and funding cuts and budget freezes public reception of a concept that low-interest loans and tax a happy, healthy, successful New is largely responsible for the lack is very well structured in many incentives. Furthermore, with Year. of enthusiasm amongst investors. respects. The discussion has respect to existing buildings The BDH also assumes that the since become more objective; it and the housing market, a fair Dr. Martin Viessmann photovoltaic boom this year used is apparent the concerns were compromise between the interests up investment funds that would exaggerated to a certain extent. of landlords and renters must be have otherwise been allocated to For one thing, it is unrealistic found. It is questionable whether modernising building envelope and to think that building elements this can be achieved by passing heating systems. such as windows, roofs, façades new laws. What good is a legal and heating systems currently regulation for allocating investment in place can continue to be used costs when it is unfeasible on the through 2050. Replacement and/ market? As is usually the case, a or maintenance will be necessary mutual agreement for the benefit regardless, in accordance with the of both sides is preferable here. usual intervals of modernisation. Thus any improvements in energy

3 German industry’s climate Michelin star for Hotel protection coalition: “Die Sonne Frankenberg” Membership certificates presented

Seven industrial companies Gourmet restaurant Philipp Soldan in the immediate vicinity of the were admitted to membership in in Hotel “Die Sonne Frankenberg” town’s landmark, the 500-year- the German Climate Protection has been awarded its first Michelin old city hall featuring ten towers. Coalition for Energy Efficiency star. Hotel director Kerstin Scholl With 61 rooms and suites and Innovation this past October. and chef Florian Hartmann are and 70 employees, the Small The German Federal Environment very pleased to have received this Luxury Hotel of the World offers Ministry, the Federal Ministry honour. personal, enthusiastic service of Economics and the German Berthold Goeke, assistant secretary and the ultimate indulgence for Federation of Chambers of in the German Federal Environment With his modern European cooking its guests. The hotel’s 1,000- Ministry (left), and Dr. Martin square-metre spa is an oasis of Commerce (DIHK) launched the Wansleben, Managing Director of style, Hartmann concentrates partnership in 2009 together with the DIHK (right), presented the on a single basic food item of relaxation. four founding companies. The membership certificate for the highest quality instead of cooking initiators selected Viessmann, Viessmann Group to Manfred Greis, meals with a wide variety of Read more about the gourmet berolina Schriftbild GmbH, ebm- Head of Corporate Communications. ingredients. Fewer ingredients restaurant’s namesake, Philipp papst Mulfingen GmbH and bring out the best in fish and Soldan, and his craft in the Prinovis GmbH as outstanding companies at a reception at Haus meat while emphasising their section “Classics” (page 32). examples of energy efficiency and der Deutschen Wirtschaft in quality. Hartmann completed his climate protection. Berlin. Dr. Wansleben pointed out training with Michelin-starred chef that the companies perceive the Harald Wohlfahrt at the restaurant Kitchen Strict criteria must be met greatest economic risk in how “Traube Tonbach”, followed head Florian to be admitted to the group. raw materials and energy prices by stints at various gourmet Hartmann is pleased to have Climate protection and energy will develop. “This makes it all the restaurants. received his first efficiency must be an explicit more important to help companies Michelin star at element of company policy to conserve energy”, he added. Hotel “Die Sonne Frankenberg” Hotel “Die Sonne and activities in this area must is located in the heart of the old Frankenberg”. be regularly communicated. The goal of the partnership town of Frankenberg with its Furthermore, consumption data for climate protection, energy historic timber frame houses, and greenhouse gas emissions efficiency and innovation is to must be systematically logged develop the existing potential for and climate protection and energy climate protection and energy efficiency must be anchored efficiency in companies. Additional in the company’s training and aims are to drive forward the use Media Prize for professional development of innovative technologies to tap programmes. Berthold Goeke, this potential in business practice “Energy Future” book assistant secretary in the German and to create a framework to Environment Ministry and Dr. achieve the ambitious climate Martin Wansleben, Managing protection goals and increase Director of the DIHK, presented energy efficiency in an affordable A chapter in the book “Energy The book the membership certificates to manner. Future: Efficiency and Renewable “Energy Future” published by representatives of the partner Energies in the Heating Sector” Viessmann has published by Viessmann has been been honoured awarded the ERM (energy and with the ERM resource management) Media Media Prize. Viessmann Selection – Prize for sustainable development. 2010/11 winter catalogue The jury recognised “Learning from the Indians – heating and cooling in the future” as the best text in the category of corporate The ERM Media Prize is sponsored Viessmann’s sporting goods shop media. In this article, author by Nürtingen-Geislingen University. has a new name. The lifestyle Dr. Torsten Meise describes It has been recognised by the programme with premium quality various future visions of CO2-free German Commission for UNESCO business and recreational products urban centres and elaborates on as a contribution to the United is now called Viessmann Selection. solutions for providing cities with Nations Decade of Education for Some of the highlights of the a promising, environmentally Sustainable Development and is to 2010/11 winter catalogue are friendly, affordable supply of be awarded annually for articles in presented on page 29. energy today using technology general public media and corporate already available on the market. media.

4 News

Vitocal 300-G wins Youth convention on coveted design prize the topic of sustainability

Viessmann’s Vitocal 300-G heat “It’s your energy” was the motto pump has won one of Germany’s of the Youth Convention held most prestigious design awards: recently in the Berlin Congress the 2010 International Design Center. The German Energy Prize from the State of Baden- Agency (dena) invited 300 youth Württemberg, sponsored by from all over Germany to talk about the Design Center Stuttgart. the energy supply of tomorrow Companies and designers from The Viessmann Vitocal 300-G with experts from politics, industry heat pump won over the jury of around the world participated in the Design Center Stuttgart. and science. The convention was this year’s competition, submitting held under the patronage of Prof. 348 products in various categories. Dr. Annette Schavan, German The jury was impressed by the successful deployment of the Federal Minister of Education and symbolic design of the powerful corporate design with strong Research, and was supported by heat pump, which closely recognition value and attractive Viessmann. resembles a safe. It’s the perfect representation of the brand family, choice for modern architecture high quality and good positioning Lectures and workshops with a clean design and a one- of the logo. Emphasises only focused on the topics of energy Prof. Dr. Annette Schavan, German Federal Minister of Education and piece front. What specifically did the most necessary of operating and sustainability. Participants Research, served as patron of the the jury have to say about the elements, otherwise a simple could visit an internet platform youth convention. device? “New aesthetics for such geometric shape and a powerful, before the event, vote on what a classic product. Systematic, solid construction.” issues should be discussed and submit their own suggestions for workshops. event also discussed topics related to energy and climate policy. A As part of the sustainability “Market of Possibilities” also Energy Forums 8 and 9 in Allendorf strategy of the German state of informed youth about the many Hesse, another youth forum was volunteer opportunities to promote organised at the Frankfurt airport sustainability. with the motto “Young - Hessian For the 8th and 9th time, the - Sustainable”. Participants in this Viessmann Academy in Allendorf hosted Energy Forums this past September and October. Top-ranked experts explored the current energy and climate situation and the potential consequences of climate change, Speakers at the Energy Forums: elaborated on ways to solve the Prof. Dr. Hans Joachim Schellnhuber, BDH calls for increases problems and answered questions Stephan Kohler and Franzjosef Schafhausen (from left). from Viessmann’s invited trade to subsidy programmes partners in a follow-up discussion round. Speakers included Prof. to balance ecology, economics Dr. Hans Joachim Schellnhuber, and social responsibility”, said Director of the Potsdam Institute Dr. Viessmann. “This is the only The German Industrial Association must now by translated into actual for Climate Impact Research, way to secure prosperity and jobs, for Building Services, Energy and policy, according to a BDH press Franzjosef Schafhausen from the keep the environment intact and Environmental Engineering (BDH) release. They advocate increasing German Federal Environment conserve natural resources. To is calling for significant increases funding to make it possible to Ministry and Stephan Kohler, ensure the livelihoods of future to the funding programmes for double the rate of modernisation management spokesperson of the generations, a sustainable energy modernising the energy systems from 1 to 2 pecent as mandated German Energy Agency (dena). supply is necessary based on of out-dated buildings. At the by the energy concept. Moreover, highest efficiency and use of all same time, they criticise cuts in the BDH recommends making the In his opening speech, Dr. Martin available energy sources.” funding by the KfW Development subsidies permanent to provide Viessmann pointed out that Bank as well as in the market investment security for industry sustainability will more strongly incentive programme for and processing businesses. determine political and business renewable energy. The positive activity in the future. “Politics goals of the energy concept and business owe it to society issued by the German government

5 Ambient heat – free energy from the environment

The energy supply of the future increasingly greater role. But Ambient heat as it is used in us with warmth for many billions must be reliable, affordable their potential is not infinite. Central Europe is essentially the of years, these reservoirs will be and compatible with the Subsequently, complete reliance stored energy of the sun. Solar refilled again and again. environment and the climate. on renewable energies is only radiation originating from roughly It will require a balanced mix conceivable when energy 150 million kilometres away In addition to solar energy, heat of sources, whereby renewable efficiency is significantly warms the upper layers of the from inside the earth is another energies will have to play an increased beforehand. ground and the oceans. The air source of ambient energy. The above absorbs a portion of this temperature of the earth’s core is In a series of articles, “aktuell” heat and distributes it around estimated at 5,000 to 7,000 °C. examines the perspectives of our planet through global air Ninety-nine percent of the mass of the various fuel types and their movement. The main sources of our planet is hotter than 1,000 °C. usage in the heating market. ambient heat in our latitudes are Almost everywhere in the world, Following biomass (issue the ground, groundwater, surface the temperature one kilometre Geyser in Iceland: Besides heat from 2/2009) and solar energy (issue water in the form of lakes and beneath the earth’s surface is deep inside the earth, the sun is the most important source of ambient 1/2010), this edition is dedicated rivers, and outside air. Because 35 to 40 °C. Experts believe this heat. to ambient heat. the sun will continue to provide energy originates from when the

6 Ambient heat

earth was formed, when our planet was still a ball of fire, as well as from radioactive decay processes deep within the earth’s crust, which have been continuously generating heat for millions of years. In regions with volcanic activity, it is relatively easy to tap this ambient heat. But in Central Europe and most other parts of the world, it is usually necessary to drill several kilometres into the earth.

Ambient heat is ideal as a source of heating

As a result, affordable ambient A modern ground source heat heat in Germany is extracted pump uses just one kilowatt hour of Heating with ambient heat electrical energy to produce up to six almost exclusively from the upper kilowatt hours of heat. layer of the earth and from the air, where stored energy from the sun predominates. It is used in particular to supply buildings with heating and hot water. Ambient heat is not yet relevant for The heating sector accounts for electricity comes from renewable Many heat pumps offer another generating electricity, but will gain the largest share of total energy sources, the heating system is useful advantage: They can be in importance here in the future consumption in Germany at 40 also CO2 neutral. operated in reverse to cool a when geothermal power plants are percent. Using ambient heat with building. In this case, they remove built. It plays absolutely no role in heat pumps to heat buildings heat from rooms on hot summer traffic and transport. and generate hot water thus Modern heat pumps days and release it to the ground, significantly helps to conserve for new construction and the groundwater or the outside air. fossil fuels and reduce CO2 modernisation emissions. The share of ambient heat in renewable energies in The technology of modern heat Constant temperatures the heating market is currently pumps is fully developed. They underneath the earth’s approximately 4.5 percent – about reliably and efficiently provide surface the same as solar heating – while the necessary output throughout biomass predominates (more than their entire service life. Units The ground is a good heat 90 percent). are available for all conceivable accumulator; relatively constant applications, including new temperatures of 7 to 13 °C Electric heat pumps extract buildings and modernisation, are available year-round, just a heat from the heat source and single-family and two-family few metres below the surface. use a compressor to increase it homes, and buildings with greater Horizontal geothermal collectors or to a temperature viable for the heat demand such as apartment vertical geothermal probes absorb heating system. One kilowatt blocks, hotels, and commercial the heat stored in the ground and hour of electricity used to run and industrial buildings. What release it in a ground source heat the compressor yields up to heat source they use (geothermal, pump. six kilowatt hours of heat from groundwater or outside air) ambient sources when combined depends on the local conditions To install a geothermal collector with an efficient heat pump. If the and the heat demand of the for an average new single-family building. home, a free area of 200 to

7 400 square metres is required. consult a drilling company that the ice still has a temperature of What is more, outside air is the Because so much space is often specialises in this area. approximately 4 °C. Large lakes in easiest and thus most affordable not available, geothermal probes particular are good accumulators heat source to exploit. All that is which require much less room of heat. This energy can be used in required is an incoming air duct to are typically used. Geothermal Groundwater offers heat pump systems to efficiently draw in outside air and an exhaust probes absorb heat up to 100 constant temperatures heat buildings. air duct to vent the cooled air back metres beneath the surface, and outside. These ducts aren’t even some extend even deeper into the Water is also a good accumulator Groundwater and surface water necessary when the heat pump is ground. By increasing the number of ambient heat. Even on cold are suitable as heat sources for installed outside. of probes, even large buildings can winter days, groundwater has a both single-family dwellings and be heated using geothermal heat. constant temperature of roughly 7 large buildings. However, water In new buildings and modernised to 12 °C. Groundwater is removed pollution control regulations in existing buildings whose thermal How much heat can be extracted from a supply well and transported Germany strictly limit the use of insulation corresponds to the from the ground depends on a to the ground source heat pump. these heat sources. low energy house standard and number of factors. For systems The cooled water is then fed back whose heating systems require with geothermal probes, proper to the ground water via a second only low system temperatures, air arrangement and drill depth is well, called a return well. Outside air the easiest heat source heat pumps in single-mode of key importance. It is best to source to tap operation can meet the complete Surface water in lakes and rivers heating demand. can also be used as a heat The outside air temperature varies source. Even in the coldest of greatly depending on the season Outside air is the easiest source of winters when the water surface and weather, but modern air heat to use. The heat pump can be is frozen, the water underneath source heat pumps can generate simply installed next to the house. heat even when the air is at -20°C.

8 Ambient heat

Ground, groundwater, surface water and outside air are the typical ambient heat sources for heat pumps. Heat from groundwater

2

1 Ground source heat 3 pumps require a 1 Vitocal heat pump2 DHW cylinder supply well and a 3 Heating water Waste heat – an alternative return well to use the buffer cylinder to ambient heat heat of groundwater.

In addition to ambient heat Geothermal heat (probe) from nature, waste heat is an Air source heat pumps interesting source in many cases. for dual-mode systems Wastewater and other waste streams from industrial processes These heat pumps are increasingly contain a considerable amount being used to modernise heating of energy which is seldom used. systems in older buildings. They With the right heat pump system, are combined with the existing this energy can be used to heat 2 boiler, which continues to operate office and commercial buildings Ground source heat 1 as a peak load boiler. In this type or be re-used in manufacturing pumps extract heat 3 from the earth via of dual-mode system, the heat processes. The type of waste 1 Vitocal heat pump2 DHW cylinder vertical geothermal pump meets up to 90 percent of heat (hot air, exhaust air, cooling 3 Heating water probes placed up to buffer cylinder annual heating requirements. The water, etc.) determines the 100 m deep. boiler takes over only on especially type of heat pump (e.g., ground cold days. source heat pump). Due to the unique conditions of their use, the Geothermal heat (collector) systems must be designed very individually.

Innovative central heat recovery system at Viessmann’s headquarters Geothermal 2 collectors collect Waste heat also plays an 1 the water about 1.5 3 important role in the Efficiency metres below the 1 Vitocal heat pump2 DHW cylinder Plus concept designed to improve surface and feed it 3 Heating water resource efficiency at Viessmann to the ground source buffer cylinder headquarters in Allendorf. heat pump. Waste heat from test benches, pressurised air generation and Heat from the air the data processing centre is collected in a central heat recovery system. Before being released to the heating system, a heat pump increases the temperature of the waste heat, reducing consumption of electricity and natural gas by

nearly 10 gigawatt hours and 2 sinking CO2 emissions by 3,000 1 tonnes per year. Viessmann won Air source heat 3 the 2010 Energy Efficiency Award pumps installed in 1 Vitocal heat pump2 DHW cylinder the building draw in for this innovative heat recovery 3 Heating water the outside air via a buffer cylinder concept. ventilation duct.

9 Electricity from ambient heat

Only relatively deep geothermal power from deep geothermal heat is currently viable for energy is still in its infancy generating electricity from here. All underground thermal ambient heat. Of all the ambient water and hot rock are located heat sources, only deep several kilometres beneath the geothermal energy offers the high surface and their temperatures temperatures significantly above are not sufficient to drive normal 100 °C necessary to operate steam turbines. The maximum power plant turbines. temperature found so far has been approximately 170 °C at a depth It is easy to tap this energy in of some 4,500 metres near Bad regions with volcanic activity. Urach in the Swabian Alb. In these areas, magma at temperatures of up to 1,200 °C In the ideal case, the heat source emerges from the lower layers found at these depths is hot of the earth to partially reach the thermal water which only needs surface, where it can be used to be pumped to the surface. relatively easily to generate steam However, this kind of water- to drive turbines. As a result, bearing permeable rock (known as countries with active volcanoes an aquifer) is the exception, and including Iceland, the US, Costa the risk is great that expensive Rica and the Philippines supply a exploratory drilling will not find significant share (currently up to anything. 15 percent) of their electricity with geothermal power plants. The “hot dry rock” technique is currently being tried for the first time in Germany in Bad Urach, High-temperature geothermal Hannover, Bruchsal and Landau. power still in its infancy in This method does not rely on ORC process makes it Energy Sources Act (EEG) in 2000. Germany water-bearing layers because it possible to use geothermal The reason for this is that deep creates its own artificial water heat to generate electricity geothermics is the only renewable Because Germany is located in flow through the hot rock. High- energy besides biomass that is a region without any significant pressure water is pumped into the To be able to produce electricity capable of providing baseload volcanic activity, generating hot dry rock, causing fractures that despite the low temperatures of power. Its inclusion in the EEG serve as artificial heat exchangers, geothermal sources in Germany Act brought with it incentives after which the water returns back up to now, a working fluid that for using geothermal heat as a to the surface. The hot dry rock vaporises well below 100 °C renewable energy source for technique significantly increases is used in the turbines instead producing electricity, in addition ORC systems are particularly suited to wind power, photovoltaics and to generating electricity from re- the number of potential geothermal of steam. In the ORC (organic newable sources such as geother- sites while avoiding the danger of Rankine cycle) process, which biomass. Several systems have mal heat or biomass combustion. incorrectly placed wells. is used for instance in biomass now been realised, producing a power plants, an organic liquid relatively low electrical output serves as the working fluid. The compared to conventional power Kalina process on the other hand plants. Additional plants are in the works with a mixture of ammonia planning or construction stage. and water.

Geothermal electricity in the German Renewable Energy Sources Act (EEG)

Although natural conditions in Germany are not ideal for producing geothermal electricity, geothermal power plants were included in the German Renewable

10 Ambient heat

It is easy to generate electricity ELEC- from geothermal heat in the form of TRICITY magma at the earth’s surface. Heat HYDRO GEOTHERMAL HOT DRY ROCK HEAT METHOD 1 2

Heat exchanger POWER PLANT Underground storage for excess heat Injection pump Hot water bearing layer Observation well Production well Layer of hot rock at approx. 200 °C Injection well

Deep geothermal techniques In Germany, two main techniques are used to exploit deep heat: the hydro geothermal method and the 1 Thermal water is pumped up from deep hot water 2 Water under pressure is pumped into deep hot hot dry rock method (illustration bearing layers (aquifers). dry rock. The water is heated as it permeates the from the book “Energy Future – The used cooler water is returned to the ground. rock and is then pumped back to the surface. Efficiency and Renewable Energies in the Heating Sector” by Jürgen Petermann).

11 Group

Founded in Belp, KWT now has its headquarters in Worb. The two municipalities are located in the canton of Bern, Switzerland.

Daniel Trüssel, President of the Management Board and Technical Director of KWT Kälte- Wärmetechnik AG (left), and René Steiner, Administrative Director. Member of the Viessmann Group since 2008: KWT Kälte-Wärmetechnik AG

Swiss heat pump manufacturer 4Geothermal probes bearing KWT heat pumps can be installed more efficient and usually more KWT joined the Viessmann the FWS (Swiss Heat Pump in demanding environments where economical solution, especially Group in spring 2008. With this Association) seal of quality space is tight. All materials and when the heat extracted from the acquisition, Viessmann further 4Cooling systems for industry and processes are certified according process can be used elsewhere. strengthened its leading position in commerce to ISO 9001. heat pumps. As part of an ongoing 4Measurement and control series on Group members, this equipment Service round the clock issue of Viessmann aktuell profiles Using waste heat KWT Kälte-Wärmetechnik AG. With more than 30 years of for heating purposes Property heat pumps and other experience, KWT offers the right systems from KWT can be heat pump system for practically Using waste heat can significantly arranged to be monitored from Outputs from 6 kW to 2 MW every conceivable application. increase energy efficiency, not KWT headquarters by contract. Dual-mode heating systems are only in production facilities. KWT manufactures heat pumps also possible, where the heat with output ranges from 6 kW pump provides basic heating Waste water from hotels and Founded in 1979 to 2 MW, capturing heat from for heating water and DHW, recreation centres for instance geothermal, groundwater, river while an oil or gas condensing typically has a temperature of KWT has been growing water and air sources. KWT’s large boiler is automatically activated 25 to 35 °C. At the same time, dynamically and continuously machines expand Viessmann’s to accommodate peak load, for large amounts of fresh water since it was founded in Belp, upper range in particular. KWT instance when temperatures drop are required at these sites. KWT Switzerland in 1979. The company plans and builds drastically. KWT even has suitable offers special high-efficiency heat has more than 100 employees, 4Heat pumps for a broad range of heat pumps for extreme outside pumps to take advantage of this and sales of approximately EUR applications temperatures, whether -40 °C or waste heat to produce water 17 million were generated in 2009. 4Heat recovery systems +35 °C. temperatures of 60 °C. The proportion of trainees at KWT is 15 percent. Daniel Trüssel is President of the Management Combination with cooling Board and also serves as Technical Director. The position of Heating is not always the prime Administrative Director is held by objective. In many industries René Steiner. process water must in fact be cooled, frequently via cooling towers. A KWT heat pump is a

KWT ground source heat pump with heating output of 500 kW at Berna Biotech AG, a vaccine producer in Bern, Switzerland.

12 Company

New company founded Heat pump expertise bundled in Allendorf Dr. Frank Schmidt, Managing Director of Viessmann Wärmepumpen GmbH.

Viessmann Wärmepumpen GmbH source heat pump that is not only Viessmann Geothermics is started business at the beginning attractively priced and efficient but your professional partner for The Viessmann of 2010. Viessmann’s expertise in also simple to install. installing geothermal probes. It heat pump range heat pumps has been concentrated cooperates with carefully selected in this German limited company. professional drilling companies and Whether for single-family homes, From development and design Sharing Viessmann expertise coordinates all work. apartment buildings, businesses to production and product with trade partners or local heating networks, management – all stages of the the comprehensive range of value-added chain are covered in It takes considerable expertise Extensive exchange Viessmann products features the new company. Approximately to properly plan and dimension of experience in the efficient heat pumps for using heat 220 employees work at Viessmann heat pump systems. Viessmann Heat Pump Forum from geothermal, groundwater and Wärmepumpen GmbH, 30 of shares the necessary know-how air sources, with outputs of 1.5 to them in development and design. with its trade partners at events The Viessmann Heat Pump Forum 1,500 kW. They can heat a building Managing Director is Dr. Frank held at the Viessmann Academy. which debuted in Allendorf this as the sole heat source year-round Schmidt. Practical training on fully functional year was attended by nearly 200 or be combined with a boiler or equipment is carried out at the experts from throughout Germany. a solar thermal system from the Academy Information Centre in The objective of the event is to comprehensive Viessmann product Reacting quickly to market Allendorf as well as at all sales provide a broad foundation for range. needs with the Vitocal 200-S offices. practically acquired experience and to exchange this knowledge with Viessmann also supplies the Pooling expertise at the Allendorf Specialists can also access colleagues. complete related system site and closely integrating the convenient calculation technology including underfloor company into the Group’s sales programmes and a schematic heating and low-temperature organisation has made it possible browser as practical aids in their radiators for operation with heat to react to market changes more daily work. These applications pumps. Viessmann heat pumps quickly and flexibly. For example, can be found on the Viessmann that use underground heat or market demand for a highly website. Once the system has water as sources can optionally affordable air source heat pump been designed and installed, be supplied with “natural cooling” which emerged in 2009 was experts from our Technical Service and “active cooling” modules for met in summer 2010 with the are available to commission it on- cooling buildings on hot summer introduction of the Vitocal 200-S. site if desired. days. The Vitocal 200-S is a split air

The founding of Viessmann Wärmepumpen GmbH makes it possible to react more quickly to market changes. View of heat pump manufacture in Allendorf. 13 New component in the Efficiency Plus sustainability project Biogas system started up at Allendorf site

Viessmann was pleased to start Biogas is generated from converted in a combined heating a member of the Viessmann up a new biogas system at its agricultural and landscaping and power (CHP) station with an Group. This will cover four percent Allendorf site following 11 months waste output of 190 kW into up to 1.2 of local electrical demand and of construction and an investment million kilowatt hours of electrical three percent of thermal needs volume of EUR 2.5 million. The Built by Viessmann Group member energy and 1.5 million kilowatt – enough energy to supply some grand opening was attended by BIOFerm, the dry fermentation hours of thermal energy. The 380 households with electricity Hessian State Environmental unit will generate biogas from electricity and heat generated and heat approximately 70 single- Minister Silke Lautenschläger and agricultural and landscaping waste. are used in the production facility family homes. numerous other guests of honour. The new system can transform at company headquarters in 4,500 tonnes of substrate into Allendorf. The CHP came from In his speech, Dr. Martin more than 500,000 cubic metres manufacturer ESS, based in Viessmann emphasised that of biogas annually, which can be Landsberg am Lech and likewise the new biogas system is a key element in the Efficiency Plus sustainability project. The company has clearly demonstrated in this project that the energy and

The new biogas system shortly before start-up. 4,500 tonnes of various substrates are transformed here into more than 500,000 cubic metres of biogas annually.

14 Company

Left: Starting up the new biogas system (from left to right): State Parliament representative Heinrich Heidel, District Administrator Dr. Reinhard Kubat, Dr. Martin Viessmann, Hessian State Environmental Minister Silke Lautenschläger, Annette Viessmann, Katharina Viessmann and District Governor Dr. Walter Lübcke.

Right: The new biogas system contributes 3 percentage points to the factory’s share of renewable energy.

climate policy targets for 2020 can the immediate vicinity is used, to an indigenous energy source as a renewable energy when it already be achieved today. The avoid unnecessary transportation and unlike the sun and wind can is used in co-generation. High- share of renewables in the site’s and to actively include farmers be used year-round whenever efficiency condensing technology energy supply is now 23 percent, from the region as suppliers of the needed. The ambitious goals is not taken into consideration. For with three percentage points substrate. specified by German climate the sake of further development, attributable to the new biogas protection policy can only be it is imperative that the heating system. Because the system is achieved when, in addition to market be opened up for biogas. also used for research and test Biomass plays a key role increasing energy efficiency purposes, the project received a especially in buildings, the use of subsidy of EUR 95,000 from the Biomass plays the central role in biomass as a carbon-neutral fuel German state of Hesse. renewable energy – one of the source is significantly expanded. key ways to solve energy and Biogas in particular offers a wealth The project is oriented toward climate problems, in addition to of opportunities here. However, the principle of sustainability. increasing efficiency. It has the current legal regulations in Consequently, only biomass from greatest potential because it is Germany only recognise biogas

The CHP unit meets four percent of electrical demand Gas bags serve as intermediate and three percent of thermal storage for biogas. needs at the Allendorf facility.

15 Fermentation test to measure the additional gas yield from adding “Methanos”.

High-performance microorganisms double the efficiency of biogas systems 2010 Bavarian Energy Award goes to Schmack Biogas

Viessmann Group member Efficiency of biogas systems biogas fermenter, the specific gas Ulrich Schmack sees the use of Schmack Biogas GmbH located significantly enhanced yield from the starting materials high-performance microorganisms in Schwandorf, Germany has can be increased by up to 20 as a milestone in company history: been honoured for its innovative Schmack microbiologists have percent. Moreover, the biogas “With ‘Methanos’, our employees energy use as part of the 2010 succeeded in isolating high- system can now process twice have developed a product with Bavarian Energy Award. The performance methanogenic as much raw materials without a unique selling proposition. The company received this award microorganisms. This has enabled retrofitting the fermenter, thus profitability of our biogas systems for isolating special “Methanos” the company to produce these doubling production of electricity will increase significantly relative microorganisms, which produce microorganisms in large quantities, and heat. to the competition. Investment methane in biogas units. which improves the efficiency of costs will decrease while system biogas systems in two ways. By yields will increase.” Bavarian Secretary of State for introducing sufficient volumes Economic Affairs Katja Hessel of the microorganisms into the presented the award to Ulrich Schmack and Dr. Doris Schmack in Nuremberg on 28 October. The award is given to outstanding innovative products in the field of efficient energy generation and usage. Schmack won the prize for developing “Methanos” into a market-ready product as part of the company’s microbacterial research.

Presentation of the 2010 Bavarian Energy Award: Bavarian Secretary of State for Economic Affairs Katja Hessel (right) presents the award to Ulrich Schmack and Dr. Doris Schmack.

16 Company

Viessmann supports students Team from Wuppertal University builds a net zero energy house for the Solar Decathlon Europe

The Solar Decathlon organised every two years by the US Department of Energy is considered one of the most important architectural and energy technology competitions in the world. The goal is to design the energy-efficient houses of the future, heated and powered exclusively by their own solar sources. A European version of the competition, the Solar Decathlon Europe, has now been established in Madrid, Spain. The German teams participating in this competition are sponsored by the Federal Ministry of Economics But they made it to the podium hardly wait to start my career”, The students from the University of and Technology following a in three individual categories, commented one team member. Wuppertal are proud of their success at the Solar Decathlon Europe in resolution of German Parliament. including second place finishes “Of course I hope this helps me Madrid. 17 teams took part in the Solar in “Architecture” and “Lighting stand out against the competition Decathlon Europe. The University Planning” as well as third place in in the job market.” of Wuppertal’s project received “Appliances and Functionality”. both financial and technical Following their outstanding support from Viessmann, including performance at the Solar Experiences shared at talks German teams are scheduled to a compact energy tower and Decathlon Europe, the students in Germany and abroad present their projects at the 2011 two Vitosol 300-T vacuum tube are now focused primarily on BAU trade fair for architecture, collectors to install in the house. completing their studies. “With The students will share their materials and systems in Munich. a Master’s degree and the Solar experiences in a range of talks in The net zero energy house of the The 40 students and their Decathlon under my belt, I can Germany and abroad. All the Wuppertal team will be installed in professors Anett-Maud Joppien Wuppertal, where it will be used and Karsten Voss garnered as an experimental laboratory for three awards and came in sixth teaching and research purposes. place overall in the international Industry has already expressed competition. interest in follow-up projects.

Podium finish in three sub-categories For more information, please visit www.sdeurope.uni-wuppertal.de. The competition for the 17 participating teams from around the globe and their 100-percent solar-powered houses concluded with the awards ceremony in late June. 190,000 visitors toured the “Solar Village” near the Royal Palace in the city centre of Madrid, where competition submissions were publicly exhibited. Because the results of the top teams were very close, the University Viessmann Vitosol 300-T vacuum of Wuppertal team had to settle tube collectors in the net zero energy for sixth place, despite trailing the house built for the Solar Decathlon overall winner by only five percent. Europe.

17 German Federal Minister of Economics Rainer Brüderle (left) and Minister for the Environment Norbert Röttgen present the energy concept of the federal government at a press conference.

Environmentally friendly, reliable and affordable energy supply New energy concept from the German federal government

The German federal government industry welcomes this concept as well not have been for practical energy systems from currently one presented its new energy and is pleased that the importance purposes. The overwhelming percent to two. Heating demand concept this past September. of the heating market has been majority of heating systems do should be reduced by 20 percent The overarching goal of the paper recognised for the first time. not correspond to the state of the by the year 2020. Furthermore, is an environmentally friendly, art – this applies to four out of five primary energy consumption is to reliable and affordable energy of the existing 17.5 million heating be decreased on the order of 80 supply. Quantitative targets have Tremendous potential for systems in Germany. percent by the year 2050. been clearly defined: By 2050, the savings in existing buildings emission of greenhouse gases should be progressively decreased Buildings account for roughly 40 The goal of climate Building Modernisation by 80 percent relative to 1990 percent of energy consumption neutrality Campaign levels. The consumption of primary in Germany and approximately energy is also to be decreased one-third of CO2 emissions. The goal is to reduce building A Building Modernisation by 50 percent by the year 2050, Thus the potential for conserving heating demand in the long Campaign is being planned to based on the figures from 2008. energy and reducing emissions term, so that buildings in 2050 reach the goals of the German It also provides for increasing the in this area is gigantic. Three- are nearly completely climate government. The cornerstones of share of renewable energy to 60 quarters of today’s old buildings neutral. Climate neutral means the programme: percent over the same time period. were constructed before the first that buildings have a very low thermal insulation regulations need for energy and the rest is 4 A relatively moderate standard The government has identified came into force in Germany in provided for the most part by is to be chosen for 2020, so increasing energy efficiency as 1979. These buildings have often renewable energies. To achieve that first only buildings with the key to reaching these goals, not been renovated at all, or might this, it will be necessary to double the worst energy efficiency are in both private households and the annual modernisation rate of affected, which typically need the public domain. The heating to be structurally renovated as

18 Industry

well. To modernise, owners renewable sources, networks, plans to continue to use Capturing potentials for can choose between insulating storage and their interactions must sustainable biomass to ensure an better efficiency in industry the building shell, improving be optimised. The goal is to make environmentally friendly, reliable energy equipment or opting for the transformation of the energy energy supply. Key factors in Energy efficiency will renewable energy. They can supply economically viable for the sustainable use of biomass become a more important decide to modernise over a businesses and consumers. The include: measure of international period of time or all at once. federal government has identified industrial competitiveness and the following key challenges: 4 Improved exploitation of innovativeness in the future. As a 4If owners exceed the targets or bioenergy potential in Germany, result, increasing energy efficiency meet them ahead of time, they 4The expansion of wind energy avoidance of usage conflicts by is a key issue in industry as well. receive a government subsidy. (offshore and onshore) relying more on organic wastes Scientific studies have identified This represents a continuation 4The sustainable generation and and by-products, agricultural an annual savings potential of EUR and financial improvement use of bioenergy co-products, material from 10 billion in German companies. In of the current CO2 building 4An increased reliance on landscape maintenance and light of this potential, the federal modernisation programme renewable energy to provide wood from short-rotation government will support industry’s for instance. Tax incentives to heating and cooling plantations. own initiatives, for instance the promote modernisation will also 4More demand-oriented partnership for climate protection be considered. generation and usage of 4 Increased energy and space and energy efficiency launched renewable energy efficiency through improved by the German Federation of 4To drive forward the use of 4A better integration of types of cultivation, more Chambers of Commerce (DIHK). renewable energy in existing renewable energy into the biomass utilisation in combined buildings, the current market supply system heat and power systems, Additionally, as of 2013 tax breaks incentive programme promoting 4A qualitative and quantitative improved electricity production for energy and electricity taxes will the use of renewables in the expansion of existing electricity from biomass to further only be granted when companies heating market will be extended networks integrate renewable energies make efforts to conserve energy, beyond 2011. Additionally, a 4The development and promotion into the energy supply, and as demonstrated by certified budget-independent incentive of storage technology the further development of logging in energy management programme for renewable 4The further strengthening of the integrated biomass usage systems. heating will be examined. European electricity market concepts. The German government sees 4The German federal government 4 Creating a legal foundation additional potential in promoting will establish a subsidy Sustainable, efficient for greater use of biomethane innovative technologies to increase programme to modernise use of bioenergy converted into bio natural gas energy efficiency. urban buildings through the by establishing additional ways KfW Development Bank. The Its broad range of applications of feeding it into the natural gas objective of this programme is and excellent storage ability network. to promote extensive, locally mean bioenergy will play a key adapted investments in energy role in the energy supply of the 4 Supplementing the bioenergy efficiency and renewable future. Bioenergy is to continue supply with sustainably energies while minimising red to be developed as an important generated biomass from abroad. Modernising the energy systems of existing buildings represents a tape. source in the categories of tremendous savings potential which heating, electricity and fuels. can be quickly captured by updating 4To better capture potential for The German federal government heating equipment. energy efficiency in buildings, German rental law will be reformed and made more attractive to investors in energy system modernisation.

Renewable energy: a cornerstone of the energy supply of the future

The German federal government sees renewable energy as a cornerstone of the future energy supply. But as the proportion of renewables grows steadily, the overall energy supply system including conventional and

19 Biomass and wind power play an important role in a study from the FVEE Renewable Energy Research Association. To solve the problem of storing electricity from wind and photovoltaic power, the association proposes converting it into artificial methane. The photo shows the Helpershain communal wind park and the Ulrichstein-Helpershain wind park.

Researchers say: Political uncertainties Political will, political stability and 100 percent renewable energy is possible security in the regions in question represent significant uncertainties in such concepts.

As fascinating as the institutes’ The German federal government would play a role in this, which methane from CO2 and hydrogen scenario might be, their vision doesn’t have it easy. The political would also fulfil the need for generated from renewable depends on research advances and opposition sees a grave error in fast-reacting power plants. The electricity is still at the laboratory developments that are inherently the government’s courageous, current large-scale power plants stage today. Only about 100 of uncertain even under ideal funding visionary Energy Concept 2050: are unnecessary in this alternative the necessary 3,500 kilometres of conditions. the extension of the lifespan of concept. high-voltage power lines required nuclear power plants, which has by 2020 have been installed. Furthermore, they observe that precipitated considerable criticism Electric cars are two to three a close European cooperation but could be seen as simply a Greater efficiency and new times more expensive today than is one of the prerequisites for concession to the lack of viable storage methods required conventional automobiles, with progressively increasing the alternatives. But in fact an even only one-fourth to one-third of their proportion of renewable energy more visionary proposal has It would also be necessary to range. in the electricity network. As this been put forward by the FVEE use all renewable energies as involves not only goodwill but Renewable Energy Research efficiently as possible, whether In concrete terms, additional large huge financial investments in a Association, a consortium of solar, wind, hydroelectric, wind parks would have to be built time of empty national coffers, the seven research institutes involved geothermal, ocean waves or and the number of solar thermal bar is already set very high. in alternative energies, including biomass. What is more, extensive and photovoltaic systems would three Fraunhofer institutes. storage capacities would be have to increase greatly. Even in Germany, the 100-percent needed to store methane goal could and may quickly fail due generated with renewable to finances. Although researchers All opportunities for electricity, as gas is stored in the European super network estimate savings of EUR 730 conserving energy German natural gas network. The billion in fossil fuels between must be exploited electricity networks must also be Moreover, energy would have to 2010 and 2050 by converting to expanded considerably to offset be transmitted regionally over renewable sources for heating Before the government released local and temporal fluctuations in a much denser, more precisely and electricity alone (not including its concept, the group published the energy supply. It practically controlled network with fewer transportation) and from lower the provocative proposition goes without saying that mobility losses than is the case today. A environmental impact costs, the that it is theoretically possible is powered completely by European “super network” (in economy would first have to to convert the German energy electrical sources in this concept, technical terms: a high-voltage shoulder the annual difference supply completely to renewables whether directly (with electric DC grid) would distribute not only (costs of switching to renewable by 2050. But politics, industry motors) or indirectly via hydrogen European electricity between energy sources minus savings and citizens would have to pull or methane generated from the North Cape and Gibraltar. resulting from their use). Cost out all the stops to achieve this, electricity. The FVEE concept also includes differences are expected to start not only within Germany. It importing electricity from outside at EUR 10 billion for heating and would be necessary to exploit Europe as a key element, but electricity in 2010 and reach every opportunity to conserve Methane from electricity not from nuclear power plants. a maximum of EUR 17 billion energy, especially by modernising The researchers already consider (including transportation) by 2015, buildings, and to optimise the There are a number of power from desert regions to be a after which they should sink again. energy supply through systematic developmental hurdles to realising tangible reality, for instance from decentralisation. Combined heat this vision however. Producing North Africa with its Desertec and power (CHP) units based solar power project. on renewable fuels for instance

20 Studies / Portrait

Catalyst for growth in the heart of Switzerland Bern – business hub and tourist magnet

The car-free Bärenplatz (Bear Square) in the heart of Bern’s old town attracts countless tourists and locals every day. The capital city of Bern is located maintain its medieval structure in Switzerland’s heartland. Many while meeting the challenges of Europeans are familiar with the modern society. In the heart of the city from when Germany won the old town are the 6-kilometre-long final match of the FIFA World Cup “Lauben” shopping arcades, one there in 1954, referred to of the longest covered shopping colloquially as the “Miracle of promenades in Europe. Bern”. Bern is the seat of the Swiss But the city has much more to government and not surprisingly, offer than legendary sports history. public administration is the largest Bern is not only the capital of provider of employment. The Switzerland and the Canton of next most important economic Bern; with more than 130,000 areas are healthcare and social inhabitants it is also the fifth- services. Many people are also largest city in Switzerland and the employed in construction and economic hub of the Bern- printing/publishing. Energy, Mittelland district, whose more textiles, mechanical engineering, the average per-capita income As of last year, Bern boasts a than 380,000 residents make up electrical engineering and was 52,500 Swiss Francs, roughly new major attraction: More than roughly one-third of the Canton of telecommunication are additional equivalent to 39,000 euros per 2.4 million people have visited Bern. It is the second-largest key industries in Bern. year. the Bear Park since it opened in canton of Switzerland in terms of 2009. The city generally has a very area and population, and the In addition to being an economic special relationship to the heraldic official languages are German and Low unemployment, high powerhouse, Bern is a major animal in its coat of arms: Bern French. per-capita income Swiss tourist attraction. The was founded by Berthold V, Duke city is one of the most-visited of Zähringen, who according to The Bern-Mittelland region offers destinations for both Swiss and legend named the city after the Named World Heritage Site more than 260,000 jobs, including international tourists. Nearly first animal killed there during a in 1983 nearly 150,000 in the city of Bern 700,000 overnight stays were hunt, a bear. Bears have been kept itself. Bern’s strong economy registered here in 2009. According in Bern since 1513. The main attraction of Bern is means unemployment is very low to a 2008 report from the its historic old town, which was at just 3.9 percent (2009). Incomes BAKBASEL Economics research declared a World Heritage by in the Bern-Mittelland region are institute, Bern is in the top 10 UNESCO in 1983. The organisation correspondingly high: In 2005, of a ranking of 43 international made this decision in recognition destination cities. of how Bern has managed to

The townscape of Bern is characterised by historic buildings and the Aare river, a tributary of the Rhine.

21 With coefficients of performance as high as 6.0, the Viessmann Vitocal 300-G is one of the most efficient heat pumps available.

Viessmann Vitocal 300-G Efficient heating with geothermal or groundwater sources

The main advantage of modern includes heat pumps for all ranges now make the Vitocal The modular construction of heat pumps is that they require applications, with outputs of 1.5 to 300-G suitable for higher-demand the Vitocal 300-G allows it to be relatively little electrical energy to 1,500 kW. applications such as apartment combined to adapt to any specific make use of a large amount of free buildings, hotels and commercial needs. To achieve higher outputs, ambient heat to heat buildings, A number of Viessmann’s heat premises. these new heat pumps can be generating up to six kilowatt hours pumps can also be used to cool joined in a master/slave concept. of heat per kilowatt hour of buildings – a pleasant bonus on hot The master pump outfitted with operating electricity, depending on summer days. Whether heating or Modular construction for a control unit is first operated heat source. This not only keeps cooling, Viessmann also supplies outputs up to 471 kW by itself. As heating demand energy costs low but also helps to the full range of related systems increases, the control unit of the protect the climate and conserve technology from a single source, The Vitocal 300-G brine/water master module automatically starts fossil resources. including state-of-the-art control heat pump (COP up to 4.8 for 0°C the slave module, allowing outputs technology, DHW cylinders, brine/35°C water according to up to 85.6 kW (brine/water) or heating water buffer cylinders, DIN EN 14511) now comes in 117.8 kW (water/water). Even Viessmann heat pumps from radiators and underfloor heating. outputs of 21.2 to 42.8 kW for higher outputs are possible by 1.5 to 1,500 kW single units. As a water/water cascading as many as eight Vitocal heat pump (COP up to 6.0 for 300-G units, up to 342.8 kW Viessmann’s comprehensive range Vitocal 300-G: 10°C water/35°C water according with geothermal heat and up to includes heat pumps to efficiently High-efficiency heat pump to DIN EN 14511), the maximum 471.2 kW using groundwater. use heat from geothermal with new output ranges rated heat output is as high as sources, the groundwater and 58.9 kW. With flow temperatures the air. Whether for single-family With high coefficients of up to 60°C, the Vitocal 300-G is Electronic expansion homes, large apartment buildings, performance up to 6.0, the Vitocal suitable for both new construction valve and RCD system for commercial premises or local 300-G heat pump from Viessmann and modernising existing heating high efficiency heating networks, the portfolio is one of the most efficient units systems. for exploiting heat from the earth All versions of the Vitocal 300-G or groundwater. New output combine a Compliant scroll compressor with an electronic

22 Products

expansion valve and an RCD (refrigerant cycle diagnostic) New low-temperature system for outstanding efficiency. The RCD system constantly radiators for monitors and controls the high efficiency refrigerant cycle, ensuring optimum performance at all stages of operation. The RCD system also logs energy input from the Heat pumps and condensing power grid and heat discharged boilers are particularly efficient to the radiators and domestic hot when operated at low system water. This means no additional temperatures. The new low- heat or electricity meters must be temperature radiators from installed to obtain subsidies in the Viessmann’s comprehensive German market incentive scheme. range are thus the ideal complement to these heat sources. With an innovative Particularly quiet operation dynamic boost effect (DBE) from electronically controlled, An effective noise reduction extremely quiet axial fans on concept makes Vitocal 300-G heat the heat exchanger, the low- pumps amongst the quietest on temperature radiators provide the market. The completely sound- the same amount of heating insulated housing and the three- TheThe three-dimensional vivibrationbration as conventional radiators dimensional vibration isolation of isolationisolation andand sounsound-insulatedd-insulated two to three times larger housing of the new Vitocal 300-G 300 G the scroll compressor in the new in size. They also heat the ensure particularly quiet operation. Vitocal 300-G yield sound power room up to nine times faster levels under 44 dB(A), depending than underfloor heating. By on output. This means that the modernising the heating system, units can be installed in the scroll button permits simple the Vitocom/Vitodata telecontrol operating temperatures can be immediate vicinity of living space. programming and operation of systems available as accessories systematically reduced using the the Vitocal 300-G (starting at make it possible to monitor and new low-temperature radiators 21.2 kW). The display shows not maintain the heat pumps remotely. while comfort is enhanced. Ease of operation only diagrams of heating curves but summaries of energy input The new Vitotronic control system from the public grid and heat with menu-driven interface, large discharged to the building and graphics display and convenient domestic hot water. Moreover,

To achieve larger outputs, the new Vitocal 300-G units can be combined in a master/slave concept.

The new low-temperature radia- tors provide the same amount of heating as conventional radiators two to three times larger in size.

23 The Pyromat ECO is available with outputs from 35 to 170 kW. The models with larger outputs can also accommodate metre-long logs.

Pyromat ECO from Köb Efficient log burning boilers for home and commercial applications

“Home grown”, carbon neutral Wood gasification boiler with The large, impact-resistant, mixer circuits and DHW. It is also and easy to store: wood is an new menu guided control for graphics-capable display of the compatible with accessories from attractive alternative to heating ease of programming new Ecotronic control makes all the comprehensive Viessmann with oil or gas. This indigenous information easy to read. The range of products. The Pyromat fuel is renewable and independent The Pyromat ECO developed by intuitive interface and multiple-line ECO can thus be combined with a of fossil fuel reserves. Its Viessmann Group member and plain text display allow the various solar thermal system or operated combustion is CO2-neutral and wood combustion expert Köb menus to be quickly navigated. with a second boiler. therefore does not impact the offers new Ecotronic control Menu navigation is identical to atmosphere with environmentally for unsurpassed operating the interface of Viessmann’s damaging carbon dioxide convenience when heating with compact gas, oil and heat pump Efficient wood emissions. Moreover, wood is wooden logs, wood briquettes units introduced at the 2009 gasification boiler available year-round, irrespective and scrap wood. In contrast to ISH trade fair. All parameters of the weather, and is easy to the previous versions, the new are conveniently set via a scroll The Pyromat ECO is available with store. Burning wood in modern programming unit of the Pyromat button, similar to many modern outputs from 35 to 170 kW. It is Viessmann combustion systems ECO has now been integrated into mobile phones. particularly well-suited for buildings is efficient and environmentally the boiler. with higher heat demands such clean. The new control can also be as two-family homes, apartment expanded via a bus to operate buildings and commercial up to three mixer circuits or two premises. The large top-loading

24 Products

hopper (185 to 500 litres) can accommodate half-metre or metre- long logs depending on boiler size Fine dust filter for and allows combustion periods wood fired systems of roughly six to eight hours depending on wood type and up to 540 kW boiler utilisation. Combustion in this unit is not sensitive to foreign materials such as screws and To separate out fine dust in wood nails, which are often present in fired systems of 100 kW output scrap wood. an incremental heat yield of up to Unsurpassed ease of operation when and higher, Viessmann Group 9 percent per burnout. heating with logs: The Pyromat member Köb Holzheizsysteme ECO now comes with the Vitotronic A lambda probe and a flue gas GmbH offers a metal mesh filter control introduced in 2009. temperature sensor ensure perfectly matched to the Pyrot efficient fuel combustion. They Can also be operated with and Pyrotec range of wood regulate the supply of combustion additional oil burner boilers. An additional size has air via an induced draught been developed to extend the fan, depending on the current The Pyromat ECO can also be Time-saving installation, application range of the filter to wood gas/air ratio and the flue operated with fuel oil. The addition maintenance and service systems of up to 540 kW heating gas temperature. This allows of an oil burner is useful during output. the Pyromat ECO to achieve a longer absences, for example The Pyromat ECO comes fully boiler efficiency of up to 92%. holidays, when manual loading of wired with the return temperature Furthermore, the integral buffer logs is not feasible. The necessary raising unit pre-mounted on the Complies with strict heating management in Ecotronic connections have been pre- boiler to save installation time and emission control limits control intelligently uses residual installed. thus costs. in Germany heat from the boiler water during the combustion phase, providing The filter cartridges of the fine particulate filter are made of stainless steel mesh in an isolated filter housing. The metal mesh filter provides for a high TheThe woowoodd gasification degree of separation, achieving boiler can n be operated emission values well under withwith a rarangen of wood 10 mg/Nm3 fuelsfuels includinginclu logs, (milligram per normal woodwood bbriquettesriq cubic metre). This means that andand scrapscrap wood. An larger wood combustion systems additionaladditionala oil burner can even be operated under the cancan alsoalso beb fitted. stricter thresholds scheduled to go into effect in Germany in 2015.

Compact and easy to maintain

Compared to conventional electrostatic filters, the metal mesh filter is more compact and takes up significantly less space. The filter cartridges can be automatically cleaned with pressurised air during online operation. The cartridges are also easy to remove and can be cleaned by operators by hand for instance using a steam jet. No special tools are necessary.

25 Heat and steam for five-star hotel in Chinese metropolis Seven Vitomax boilers at the Kempinski Hotel Yinchuan

The Kempinski Hotel in Yinchuan, First-class location in At the opening ceremony, Reto sophisticated “Café Berlin” open China was opened in July. It is the business district Wittwer, President and CEO of the round the clock. Two additional not only the first hotel from the Kempinski Group, explained that restaurants, the Kempi Deli and Kempinski chain in the city of Yinchuan is the capital of Ningxia Yinchuan was chosen because of the Garden Bar & Grill, will be more than one million inhabitants; Hui Autonomous Region and is the enormous economic growth finished in spring 2011. it is also the first five-star hotel in located near the headwaters of the anticipated in the region. Yinchuan. The impressive building Yellow River, the second-longest Spread over 2,600 square metres, is heated by five Vitomax industrial river in China. The Kempinski The 409 rooms and suites of the conference and banquet facilities boilers, while two additional Hotel enjoys a first-class location Kempinski Hotel are not only offer state-of-the-art media Vitomax boilers generate the in the heart of the Jinfeng quarter, elegantly and stylishly furnished; equipment and a column-free process steam required for hotel the business district of the city. they also offer guests breath- ballroom of 860 square metres. facilities. The International Conference and taking views of the city. A broad Guests can relax in the hotel spa, Exhibition Center, two renowned range of culinary styles are while the fitness centre features museums and the popular available in the hotel’s restaurants, the latest equipment and 20-metre People’s Square are located in the bars and lounges. Choices include heated pool. immediate vicinity. Hedong airport an authentic Paulaner brewery is only 30 minutes away by car. pub, innovative Chinese cuisine with traditional roots and a

26 Practical applications

The Kempinski Hotel is the first luxury five-star hotel in the metropolis of Yinchuan.

Beijing Yinchuan Efficient, environmentally friendly heating Shanghai Five gas-fired Viessmann Vitomax 200-LW industrial boilers of 2.6 MW each keep the Hotel Kempinski cosy and warm. The three-pass boilers guarantee Hong Kong particularly environmentally friendly, clean combustion across the complete output range, while wide water galleries ensure excellent natural circulation and The steam required in the hotel steam chamber to ensure reliable, reliable heat transfer. High quality and in the kitchen and laundry continuous steam supply despite composite thermal insulation and facilities in particular comes from strong load fluctuations, as is the a fully water-cooled rear reversing two reliable, economical Vitomax case in hotels. chamber mean extremely low 200-HS boilers with an output of radiation losses and a boiler 2.9 tonnes/hour each. The large efficiency of up to 92%. High evaporator in the steam chamber energy efficiency was one of the of the three-pass boiler provides main reasons why management high steam quality with low Five Vitomax 200-LW boilers at the Kempinski Hotel Yinchuan residual moisture. The Vitomax provide heating, while two Vitomax chose Viessmann for their heating 200-HS boilers also feature a 200-HS boilers generate the process technology. large water capacity and a wide steam required for hotel facilities.

27 The Vitomax 200-HS steam boiler fulfils all the requirements of the project planners: high reliability, efficiency and a broad modulation range.

Viessmann industrial boiler expertise at StoVerotec GmbH Efficient steam boiler system for new production facility

Germans from the Swabian region insulate exterior façades. Industrial Low operating costs and The modulating, emission-reduced have a reputation for being hard- steam was needed to expand the quiet operation gas burner is equipped with a working and entrepreneurial. This feedstock and then process it variable speed blower to reduce certainly holds true for StoVerotec into blocks. In choosing a steam Professional planners B + S operating costs and noise levels. GmbH, located in the Danube boiler system, the company was Baupartner GmbH from Berlin valley at the edge of the Swabian looking for a complete solution began planning the new system The Vitomax 200-HS including all Alb. The successful subsidiary with ideally matched components. in 2008. The Vitomax 200-HS related equipment was installed of international company Sto The main requirements were has an output of 4 tonnes/hour and commissioned by Renner AG was founded in 1989 as a reliability, highest efficiency and and a safety pressure of 16 bar, GmbH & Co. KG in mid-2009. special producer for aesthetically a broad modulation range, as the and comes with an integrated Since starting up production in sophisticated, high-quality design system needed to have capacity economiser for low flue gas autumn 2009, the steam boiler concepts for building façades reserves to accommodate future temperatures. The ancillary system has completely fulfilled and interiors and has since expansions. The decision was equipment such as feedwater all expectations. The broad become a leading manufacturer made for a Viessmann Vitomax deaerators, mixing/cooling modulation range of the burner of façade systems. Approximately 200-HS. units, T.D.S. expanders, exhaust and the large water capacity and 100 employees in Lauingen are vapour coolers (heat exchangers) steam chamber of the boiler responsible for the high quality of and the control panel with PLC ensure reliable operation without StoVerotec products. (programmable logic control) were controlled shutdowns. chosen specifically for this project.

Reliability, efficiency and a broad modulation range

An expansion of the product range had made it necessary to build a new production facility for top- quality thermal insulation panels to

StoVerotec GmbH in Lauingen ranks among the leading manufacturers of façade systems.

28 Practical applications / Viessmann Selection Whether carving toboggan, Nici bear or chronograph watch, these gifts are sure to hit the mark.

Carving toboggan

Sport Shop under new name Viessmann 2010/2011 Selection catalogue with great gift ideas selection

Starting with the winter 2010/2011 selection offers something for functional collection of racing Chronograph watch catalogue, the Sport Shop every taste and price range. You’ll apparel for men and women. presents itself under a new find a wealth of gift ideas for Precision, robustness and quality name: Viessmann Selection. The others – or yourself. The highly elastic softshell jacket are united in the new chronograph new name emphasises what features a warm fleece lining and watch with the elegance of you will find in the catalogue: is breathable and wind- and water- classic design. Details include a innovative products, unique design Carving toboggan resistant. The knit team and racing massive, matte-brushed stainless and incomparable quality. The logos combined with the contrast steel case, hardened, scratch- catalogue’s 86 pages present Hot stuff: the carving toboggan embroidery featuring the Bogner proof mineral glass, a stopwatch numerous exciting ideas for has flexible carving skis instead of flame logo make this piece a real function and a high-quality croc- winter. When it’s cold outside runners and a tiltable contoured eye-catcher. embossed leather strap with a and you’re warm and comfortable seat instead of an inflexible one. stainless steel buckle. The watch at home, take some time to This fun sled is steered by shifting Finest materials in the Bogner is waterproof to three bars and browse through the new Selection one’s weight and will have you functional shirt ensure an comes in an attractive metal box. catalogue. Whether exclusive, screaming down the run. ergonomic fit. Extremely robust, practical, fancy or sharp: the large elastic and stable in shape, the shirt offers optimum moisture Nici polar bear Bogner functional apparel absorption and unrivalled wear comfort. The 30-cm Nici stuffed polar bear Sporty clothing with an elegant with a Viessmann scarf will win The knit team and racing logos transform the jackets and shirts touch: Discover Bogner’s premium the hearts of children and adults from the Bogner performance alike. If his ultra-soft fur ever gets collection into real eye-catchers. dirty, he can be machine washed at 30°C.

BOGNER BOGNER The winter 2010/2011 Selection Women’s softshell jacket Women’s functional shirt catalogue is available at the Viessmann website under www.viessmann.de.

BOGNER BOGNER Men’s softshell jacket Men’s functional shirt 29 The athletes of the Viessmann team – represented here by Nordic Four world championships combined specialist Eric Frenzel – hope to continue the success of Athletes from the Viessmann team highly the Olympic season. motivated at the opening of the 2010/2011 season

Four world championships are Nordic combined Biathlon fourth World Cup victory in a row scheduled for the coming winter and is looking to clinch her third sport season. Sports fans can The German Nordic combined The company is also a presenting championship title at the World look forward to the next exciting members of the Viessmann team, sponsor of the Biathlon World Cup. Championships in Cesana in late title competitions following the Eric Frenzel, Björn Kircheisen and Following the withdrawal of January. New members of the Olympic Games in Vancouver. Johannes Rydzek, are bound to Martina Beck, Andrea Henkel, Viessmann team include World impress again at the World Cup. Sabrina Buchholz and Tina Champion runners-up in men’s And the team also plans to bring Bachmann will represent the doubles Tobias Wendl/Tobias Arlt. Cross-country skiing home several medals from the Viessmann team in the competi- World Championships in Oslo. tion. Alexander Wolf, Arnd Peiffer, Oslo with its impressive winter Simon Schempp and Daniel Böhm Bobsled sports facilities in the Holmenkollen will wear the Viessmann colours district will play host to the Nordic Ski jumping for the men’s team. The company Since the beginning of the season, World Ski Championships from 23 also sponsors the Chinese, Polish the Viessmann logo has also been February to 6 March 2011. “I’m Ski jumpers Michael Uhrmann, and Ukrainian teams. Biathlon fans featured on all German bobsleds definitely looking to winning a Pascal Bodmer, Felix Schoft and are already impatiently awaiting starting in the Viessmann World medal in the individual race and Andreas Wank hope to continue the season highlight: the World Cup. Following the opening race the relay”, says Evi Sachenbacher- their success from the Olympic Championships from 8 to 13 in North America, the competition Stehle from the Viessmann team. Games, where they won silver March in Khanty-Mansiysk, Russia. continues in Europe in January. The world championships are also in the team competition. And of Season highlights include the one of two season highlights for course they plan to dazzle at the European championships at the her male colleagues Tobias Angerer Four Hills Tournament at the turn Luge FIBT Viessmann World Cup in and Axel Teichmann. Before of the year. The traditional event Winterberg (14 to 16 January heading to Norway, they will first at the ski jumps in Oberstdorf, The luge squad hopes to reach 2011) and of course the World take part in the Viessmann Tour de Garmisch-Partenkirchen, Innsbruck the Olympics with a new form of Championships on the artificial Ski, where only the most physically and Bischofshofen is the competition. The spectacular team track at Königssee (14 to 27 and mentally strong all-rounders uncontested highlight of the World relay is scheduled six times in the February 2011). Viessmann is a have a chance of winning. Points Cup, which Viessmann supports as coming season. Two-time world new main sponsor of the FIBT are already being accumulated in a presenting sponsor. champion Felix Loch hopes to Bob & Skeleton World Cup series. the Viessmann World Cup, which shine once again as he did in the began in Sweden in late November. World Cup. Amongst the women, Tatjana Hüfner is striving for her

30 Sport

New athletes in the Viessmann Team

15 new world-class athletes and South Korea, and she won the Johannes Rydzek Patric Leitner/ Alexander Resch, young talents have joined the sprint and pursuit events at the who won the Olympics in 2002 Viessmann team. A number of European Championships. But her Another new Viessmann team and finished their careers with a them are profiled below. big victory came in Vancouver, member is Nordic combined bronze in Vancouver. where Kuzmina won gold in the athlete Johannes Rydzek, sprint followed by silver in the who competed last year for Anastasiya Kuzmina pursuit. It was her first World Cup Viessmann’s junior team. He Tina Bachmann win and the first gold for Slovakia already made a name for himself 26-year-old Anastasiya Kuzmina, at the Olympic Winter Games. as an emerging talent at the In biathlon, Tina Bachmann is who joined the Viessmann team Olympic level as a member of the emulating the success of her last winter, celebrated her first German Nordic combined team role model Martina Beck. Her successes as a biathlete with gold Alessandro Pittin which brought home bronze from tremendous talent was apparent in and silver at the 2004 European Vancouver. the 2008/2009 season in Khanty- Championships in front of a home Italian Alessandro Pittin competed Mansiysk, where she won her first crowd in Novosibirsk. In winter at the 2006 Olympics in Turin in World Cup in the sprint. 2006/2007, the then 22-year-old the Nordic combined – on his Tobias Wendl / Tobias Arlt also took part in a World Cup and 16th birthday. Four years later a European Cup, after which she he reached the winners’ podium Viessmann is once again became pregnant and took a break in Vancouver. Since winning sponsoring a number of talented from sports. She has competed the bronze medal there, he has young athletes on their way to the for the team from Slovakia since been considered one of the most international elite class. Tobias 2008, where she lives with her promising up-and-comers in the Wendl/Tobias Arlt, who have husband in Banská Bystrica. Nordic combined. brought home two silver medals She was a surprise winner of a (2008 World Championships and silver medal in the mass start 2010 European Championships) event at the 2009 Biathlon World in men’s doubles luge, hope Championships in Pyeongchang, to continue in the footsteps of

Numerous world-class athletes and emerging talents have joined the Viessmann team.

Daniel Janin Maren Stefanie Franziska Christoph Manuel Böhm Hammerschmidt Hammerschmidt Hildebrand Hildebrand Knie Müller

Lucia Hannes Dietmar Federico Alessandro Johannes Tobias Tobias Anger Dotzler Nöckler Pellegrino Pittin Rydzek Wendl Arlt

31 Classics

The Christmas message on the stove plates of Philipp Soldan (1500–1569)

Heat is essential to life. Protection against the cold of winter and the night is one of the basic human needs and the foundation of today’s culture.

The construction of the first box stove in the late 15th century laid the foundation for a comfortable, uncomplicated heat supply in buildings. These cast iron stoves Polygonal seven-plate stove with top piece (1539). usually consisted of five plates – a top, a bottom, a front and two side plates. They were installed through the wall and fed from the open back, typically from the kitchen. This prevented smoke and odours from entering the living room.

The first stove plates were plain, but as early as the 16th century wooden moulds began to be carved to make decorated cast iron stove plates. Philipp Soldan from Frankenberg (1500–1569) was one of the most famous mould carvers from this period. He is the namesake of the gourmet restaurant in the Hotel Die Sonne Frankenberg, recently Artfully crafted five-plate stove awarded a Michelin star. Soldan from Philipp Soldan in the Museum created the most beautiful stove of Art and Cultural History at the plates of the Renaissance, whose University of Marburg. Christian themes and depiction of parables are referred to as the Philipp Soldan was not only a “Iron Bible” today. mould carver; he also assembled the stoves himself. An elaborately designed five-plate stove in the Museum of Art and Cultural History at the University of Marburg portrays the birth of Christ. Mary leans over the baby Jesus in the halo of the manger, surrounded by Joseph, the angels and the shepherds. The silhouette of Bethlehem can be seen in the background. could read, Soldan’s stove plates Artistic themes such as this communicated the message of were not only uplifting as people the Bible and the teachings of gathered around the warm the Reformation. In this way, The “Bible stoves” of the stove on long winter nights. In the stoves of the Renaissance Renaissance were elaborately a time when very few people combined function and design. decorated with Christian themes.

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