Renewable Energy Policies in a Time of Transition: Heating and Cooling
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Microgeneration Potential in New Zealand
Prepared for Parliamentary Commissioner for the Environment Microgeneration Potential in New Zealand A Study of Small-scale Energy Generation Potential by East Harbour Management Services ISBN: 1-877274-33-X May 2006 Microgeneration Potential in New Zealand East Harbour Executive summary The study of the New Zealand’s potential for micro electricity generation technologies (defined as local generation for local use) in the period up to 2035 shows that a total of approximately 580GWh per annum is possible within current Government policies. If electricity demand modifiers (solar water heating, passive solar design, and energy efficiency) are included, there is approximately an additional 15,800GWh per annum available. In total, around 16,400GWh of electricity can be either generated on-site, or avoided by adopting microgeneration of energy services. The study has considered every technology that the authors are aware of. However, sifting the technologies reduced the list to those most likely to be adopted to a measurable scale during the period of the study. The definition of micro electricity generation technologies includes • those that generate electricity to meet local on-site energy services, and • those that convert energy resources directly into local energy services, such as the supply of hot water or space heating, without the intermediate need for electricity. The study has considered the potential uptake of each technology within each of the periods to 2010, 2020, and 2035. It also covers residential energy services and those services for small- to medium-sized enterprises (SMEs) that can be obtained by on-site generation of electricity or substitution of electricity. -
Consider Installing a Condensing Economizer, Energy Tips
ADVANCED MANUFACTURING OFFICE Energy Tips: STEAM Steam Tip Sheet #26A Consider Installing a Condensing Economizer Suggested Actions The key to a successful waste heat recovery project is optimizing the use of the recovered energy. By installing a condensing economizer, companies can im- ■■ Determine your boiler capacity, prove overall heat recovery and steam system efficiency by up to 10%. Many average steam production, boiler applications can benefit from this additional heat recovery, such as district combustion efficiency, stack gas heating systems, wallboard production facilities, greenhouses, food processing temperature, annual hours of plants, pulp and paper mills, textile plants, and hospitals. Condensing economiz- operation, and annual fuel ers require site-specific engineering and design, and a thorough understanding of consumption. the effect they will have on the existing steam system and water chemistry. ■■ Identify in-plant uses for heated Use this tip sheet and its companion, Considerations When Selecting a water, such as boiler makeup Condensing Economizer, to learn about these efficiency improvements. water heating, preheating, or A conventional feedwater economizer reduces steam boiler fuel requirements domestic hot water or process by transferring heat from the flue gas to the boiler feedwater. For natural gas-fired water heating requirements. boilers, the lowest temperature to which flue gas can be cooled is about 250°F ■■ Determine the thermal to prevent condensation and possible stack or stack liner corrosion. requirements that can be met The condensing economizer improves waste heat recovery by cooling the flue through installation of a gas below its dew point, which is about 135°F for products of combustion of condensing economizer. -
An Overview of the State of Microgeneration Technologies in the UK
An overview of the state of microgeneration technologies in the UK Nick Kelly Energy Systems Research Unit Mechanical Engineering University of Strathclyde Glasgow Drivers for Deployment • the UK is a signatory to the Kyoto protocol committing the country to 12.5% cuts in GHG emissions • EU 20-20-20 – reduction in EU greenhouse gas emissions of at least 20% below 1990 levels; 20% of all energy consumption to come from renewable resources; 20% reduction in primary energy use compared with projected levels, to be achieved by improving energy efficiency. • UK Climate Change Act 2008 – self-imposed target “to ensure that the net UK carbon account for the year 2050 is at least 80% lower than the 1990 baseline.” – 5-year ‘carbon budgets’ and caps, carbon trading scheme, renewable transport fuel obligation • Energy Act 2008 – enabling legislation for CCS investment, smart metering, offshore transmission, renewables obligation extended to 2037, renewable heat incentive, feed-in-tariff • Energy Act 2010 – further CCS legislation • plus more legislation in the pipeline .. Where we are in 2010 • in the UK there is very significant growth in large-scale renewable generation – 8GW of capacity in 2009 (up 18% from 2008) – Scotland 31% of electricity from renewable sources 2010 • Microgeneration lags far behind – 120,000 solar thermal installations [600 GWh production] – 25,000 PV installations [26.5 Mwe capacity] – 28 MWe capacity of CHP (<100kWe) – 14,000 SWECS installations 28.7 MWe capacity of small wind systems – 8000 GSHP systems Enabling Microgeneration -
Two-Stage Radial Turbine for a Small Waste Heat Recovery
energies Article Two-Stage Radial Turbine for a Small Waste Heat y Recovery Organic Rankine Cycle (ORC) Plant Ambra Giovannelli *, Erika Maria Archilei and Coriolano Salvini Department of Engineering, University of Roma Tre, Via della Vasca Navale, 79, 00146 Rome, Italy; [email protected] (E.M.A.); [email protected] (C.S.) * Correspondence: [email protected]; Tel.: +39-06-57333424 This work is an extended version of the paper presented at the 5th International Conference on Energy and y Environment Research ICEER 22–25 July 2019 held in Aveiro, Portugal and published in Energy Reports. Received: 21 January 2020; Accepted: 24 February 2020; Published: 27 February 2020 Abstract: Looking at the waste heat potential made available by industry, it can be noted that there are many sectors where small scale (< 100 kWe) organic Rankine cycle (ORC) plants could be applied to improve the energy efficiency. Such plants are quite challenging from the techno-economic point of view: the temperature of the primary heat source poses a low cutoff to the system thermodynamic efficiency. Therefore, high-performance components are needed, but, at the same time, they have to be at low cost as possible to assure a reasonable payback time. In this paper, the design of a two-stage radial in-flow turbine for small ORC industrial plants is presented. Compared to commonly applied mono-stage expanders (both volumetric and dynamic), this novel turbine enables plants to exploit higher pressure ratios than conventional plants. Thus, the theoretical limit to the cycle efficiency is enhanced with undoubted benefits on the overall ORC plant performance. -
Geothermal Energy
Geothermal energy Adele Manzella CNR - Institute of Geosciences and Earth Resources Via Moruzzi 1 – 56124 PISA, Italy [email protected] Geothermal Energy Pros Cons Research What is How is used frontiers Status and perspectives What is the source of geothermal energy? What part is used? What is Geothermal Energy IGG – Institute of Geosciences and Earth Resources National Research Council of Italy WHAT is Geothermal energy Geothermal Energy The basis of geothermal energy is the From Greek gêo (earth) e immense heat content of the earth’s thermòs (heat) interior: the Earth is slowly cooling down. Since billions of years the heat in the Earth Crust is constantly supplied by Heat inside the Earth the decay of natural radioactive isotopes or the cooling of hot, shallow magmatic ~ 30 °C/km bodies. > 1000 °C > 3000 °C The resource is vast and ubiquitous and > 5000 °C has a corresponding large potential for utilization. WHAT is Geothermal energy Temperature in the ground has a daily (few cm) and seasonal (few meters) fluctuations, becoming essentially constant and equal to the average air temperature at about 18-20 m depth. Below this depth, it essentially increases with depth (geothermal gradient). Shallow geothermal: exploits the underground constant T= average air T The resource is vast and ubiquitous and has a corresponding large potential for Deep geothermal: exploits the utilization. underground heat at T>> air T WHAT is Geothermal energy The temperature increase with depth, as well as volcanoes, geysers, hot springs etc., are in a sense the visible or tangible expression of the heat in the interior of the Earth, but this heat also engenders other phenomena that are less discernable by man, but of such magnitude that the Earth has been compared to an immense "thermal engine”. -
District Heating System, Which Is More Efficient Than
Supported by ECOHEATCOOL Work package 3 Guidelines for assessing the efficiency of district heating and district cooling systems This report is published by Euroheat & Power whose aim is to inform about district heating and cooling as efficient and environmentally benign energy solutions that make use of resources that otherwise would be wasted, delivering reliable and comfortable heating and cooling in return. The present guidelines have been developed with a view to benchmarking individual systems and enabling comparison with alternative heating/cooling options. This report is the report of Ecoheatcool Work Package 3 The project is co-financed by EU Intelligent Energy Europe Programme. The project time schedule is January 2005-December 2006. The sole responsibility for the content of this report lies with the authors. It does not necessarily reflect the opinion of the European Communities. The European Commission is not responsible for any use that may be made of the information contained therein. Up-to-date information about Euroheat & Power can be found on the internet at www.euroheat.org More information on Ecoheatcool project is available at www.ecoheatcool.org © Ecoheatcool and Euroheat & Power 2005-2006 Euroheat & Power Avenue de Tervuren 300, 1150 Brussels Belgium Tel. +32 (0)2 740 21 10 Fax. +32 (0)2 740 21 19 Produced in the European Union ECOHEATCOOL The ECOHEATCOOL project structure Target area of EU28 + EFTA3 for heating and cooling Information resources: Output: IEA EB & ES Database Heating and cooling Housing statistics -
Renewable Energy Overview
APPENDIX F Agenda Item No. 9 RENEWABLE ENERGY OVERVIEW 1 Purpose 1.1 This report is to inform the Committee on the national situation with regard to renewable energy, as it applies to the district. It sets the scene for reports to future meetings of this Committee looking at renewable energy, including wind energy and sustainable construction. 2 Recommendations 2.1 That the Committee notes the information provided within the report and takes this into account when considering future related reports. 2.2 That the Committee identifies any specific issues emerging that they would want to see covered in the forthcoming related reports. 3 Executive Summary 3.1 This report is the first of three that will come together to cover a broad range of issues relating to how we respond to renewable energy and sustainable construction in new and existing developments. 3.2 This report is to inform the Committee on the current direction of National policy with regard to renewable heat and power. It sets out the forthcoming legislation and government targets that we are expected to achieve. 3.3 Taking forward this more general “scene setting”, a report will come to the next meeting of this Committee, to explain how we would approach any wind- farm applications that are submitted in the context of our current planning policies. A third report will come to a future meeting, covering sustainable construction issues. 3.4 National Context 3.5 The Nation’s electricity demand stands currently at 330TWh (a Terawatt/hour is a billion Kilowatt/hours so for context, if a typical house uses 4,000kWh/year (the UK average), this equates to electricity to power 82.5 million homes). -
Microgeneration Strategy: Progress Report
MICROGENERATION STRATEGY Progress Report JUNE 2008 Foreword by Malcolm Wicks It is just over two years since The Microgeneration Strategy was launched. Since then climate change and renewables have jumped to the top of the global and political agendas. Consequently, it is more important than ever that reliable microgeneration offers individual householders the chance to play their part in tackling climate change. In March 2006, there was limited knowledge in the UK about the everyday use of microgeneration technologies, such as solar thermal heating, ground source heat pumps, micro wind or solar photovolatics. Much has changed since then. Thousands of people have considered installing these technologies or have examined grants under the Low Carbon Buildings Programme. Many have installed microgeneration and, in doing so, will have helped to reduce their demand for energy, thereby cutting both their CO2 emissions and their utility bills. The Government’s aim in the Strategy was to identify obstacles to creating a sustainable microgeneration market. I am pleased that the majority of the actions have been completed and this report sets out the excellent progress we have made. As a consequence of our work over the last two years, we have benefited from a deeper understanding of how the microgeneration market works and how it can make an important contribution to a 60% reduction in CO2 emissions by 2050. Building an evidence base, for example, from research into consumer behaviour, from tackling planning restrictions and from tracking capital costs, means that we are now in a better position to take forward work on building a sustainable market for microgeneration in the UK. -
Cities, Climate Change and Multilevel Governance
Cities, Climate Change and Multilevel Governance J. Corfee-Morlot, L. Kamal-Chaoui, M. G. Donovan, I. Cochran, A. Robert and P.J. Teasdale JEL Classification: Q51, Q54, Q56, Q58, R00. Please cite this paper as: Corfee-Morlot, Jan, Lamia Kamal-Chaoui, Michael G. Donovan, Ian Cochran, Alexis Robert and Pierre- Jonathan Teasdale (2009), “Cities, Climate Change and Multilevel Governance”, OECD Environmental Working Papers N° 14, 2009, OECD publishing, © OECD. OECD ENVIRONMENT WORKING PAPERS This series is designed to make available to a wider readership selected studies on environmental issues prepared for use within the OECD. Authorship is usually collective, but principal authors are named. The papers are generally available only in their original language English or French with a summary in the other if available. The opinions expressed in these papers are the sole responsibility of the author(s) and do not necessarily reflect those of the OECD or the governments of its member countries. Comment on the series is welcome, and should be sent to either [email protected] or the Environment Directorate, 2, rue André Pascal, 75775 PARIS CEDEX 16, France. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ OECD Environment Working Papers are published on www.oecd.org/env/workingpapers ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Applications for permission to reproduce or translate all or part of this material should be made to: OECD Publishing, [email protected] or by fax 33 1 45 24 99 30. Copyright OECD 2009 2 ABSTRACT Cities represent a challenge and an opportunity for climate change policy. As the hubs of economic activity, cities generate the bulk of GHG emissions and are thus important to mitigation strategies. -
Technical Challenges and Innovative Solutions for Integrating Solar Thermal Into District Heating
Solar Energy Systems GmbH Technical challenges and innovative solutions for integrating solar thermal into district heating P. Reiter SOLID Solar Energy Systems GmbH 06.12.2019 Solar Energy Systems GmbH Solar Heat and DH Solar Cooling Solare Process Heat 26 YEARS EXPERIENCE IN LARGE-SCALE SOLAR THERMAL 300 SYSTEMS BUILT IN MORE THAN 20 COUNTRIES OFFICES IN THE USA, SINGAPORE, GERMANY Energy used by sector: heat - mobility - electricity Solar Energy Systems GmbH Renewable Energy in Total Final Energy Consumption, by Sector, 2016; Source: REN21 Global Status Report 2019 Current supply of DH worldwide Solar Energy Systems GmbH Werner (2017), https://doi.org/10.1016/j.energy.2017.04.045 Energy mix of the future Solar Energy Systems GmbH Limited renewable electricity More wind needed to cover Seasonal current electricity demand mismatch Limited availability Recycling reduces energy from waste Industry tries Operation based on to reduce Limited electricity needs => waste heat availability does not match heat profile Differences between basic SDH and BigSolar Solar Energy Systems GmbH Basic solar district heating (SDH) for covering DHW demand Current SDH systems for covering summer DHW demand Solar Energy Systems GmbH AEVG/Fernheizwerk, Graz, AT Collector field test under real conditions! 10 collector types from 7different manufacturers: • HT-flat plate collectors (foil/double glass) Commiss Collector Nominal Solar CO2- ioning surface power yield savings • Vacuum-tube collectors area Heat • Concentrating collector 2007 8,215 m² 5.7 MW ca. 3,000 1,400 t / 2014-18 MWh/a year Differences between basic SDH and BigSolar Solar Energy Systems GmbH Solar district heating including seasonal storage (BigSolar) Scenario 2 The BigSolar concept Solar Energy Systems GmbH CITYCITY Boiler Boiler Potentials with high solar coverage ratios Solar Energy Systems GmbH SDH for DHW in summer BigSolar (incl. -
The Potential Air Quality Impacts from Biomass Combustion
AIR QUALITY EXPERT GROUP The Potential Air Quality Impacts from Biomass Combustion Prepared for: Department for Environment, Food and Rural Affairs; Scottish Government; Welsh Government; and Department of the Environment in Northern Ireland AIR QUALITY EXPERT GROUP The Potential Air Quality Impacts from Biomass Combustion Prepared for: Department for Environment, Food and Rural Affairs; Scottish Government; Welsh Government; and Department of the Environment in Northern Ireland This is a report from the Air Quality Expert Group to the Department for Environment, Food and Rural Affairs; Scottish Government; Welsh Government; and Department of the Environment in Northern Ireland, on the potential air quality impacts from biomass combustion. The information contained within this report represents a review of the understanding and evidence available at the time of writing. © Crown copyright 2017 Front cover image credit: left – Jamie Hamel-Smith, middle – Katie Chase, right – Tom Rickhuss on Stocksnap.io. Used under Creative Commons. United Kingdom air quality information received from the automatic monitoring sites and forecasts may be accessed via the following media: Freephone Air Pollution Information 0800 556677 Service Internet http://uk-air.defra.gov.uk PB14465 Terms of reference The Air Quality Expert Group (AQEG) is an expert committee of the Department for Environment, Food and Rural Affairs (Defra) and considers current knowledge on air pollution and provides advice on such things as the levels, sources and characteristics of air pollutants in the UK. AQEG reports to Defra’s Chief Scientific Adviser, Defra Ministers, Scottish Ministers, the Welsh Government and the Department of the Environment in Northern Ireland (the Government and devolved administrations). -
BEIS Consults on Potential Actions in the 2020S to Phase out the Use of High-Carbon Fossil Fuel Heating in Buildings ENERGY PERSPECTIVE 02 Located Off the Gas Grid
Tom Crisp Editor 01603 604421 [email protected] Monday 19/03 – BEIS consults on potential actions in the 2020s to phase out the use of high-carbon fossil fuel heating in buildings ENERGY PERSPECTIVE 02 located off the gas grid. Media reports indicate BEIS has rejected calls for an inquiry into the UK’s gas storage capacity following recent price Cliff-hanger: supplier new entry in volatile markets – Gareth spikes. Oil and Gas UK predicts that production from the UK Miller Continental Shelf will increase by 5% in 2018. POLICY 05 Tuesday 20/03 – Energy and Clean Growth Minister Claire Perry confirms the government will be undertaking a formal review of the Low-carbon levies to breach £12bn per annum in 2026 Capacity Market this year. The Offshore Wind Industry Council details BEIS consults on standards for the industry’s vision for 2030, including 30GW of new capacity and smart appliances £48bn of investment in UK infrastructure. The government loses two BEIS considers novel options to votes in the House of Lords over its plans for successor arrangements decarbonise off-grid heat Parliamentary update – Week 12 for Euratom post-Brexit. The former CEO of E.ON UK Tony Cocker is 2018 appointed as the new Chairman of the Energy Innovation Centre. REGULATION 11 Wednesday 21/03 – Appearing before a Lords select committee, Claire Perry indicates the UK will look to remain in the EU Emissions Ofgem considers default tariff cap options Trading System, at least until the end of the current phase in 2020. Ofgem’s annual report on the Renewables Obligation shows it issued INDUSTRY STRUCTURE 14 86.2mn ROCs in 2016-17 – lower than the total UK supplier obligation Triad demand falls to record of 100.7mn ROCs.