HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy Intensity of High-Rise Buildings in Prague and Other European Cities
Total Page:16
File Type:pdf, Size:1020Kb
ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities Title of paper: Experience with optimisation of HIGH-RISE buildings‘ energy supply in Frankfurt am Main, Germany Author: Plebs, Hubertus, Dipl.-Ing. Prokurist, Technical Director GGM Gesellschaft für Gebäude-Management mbH Neue Rothofstraße 12 D-60313 Frankfurt am Main Phone +49 69 77 01 97 32 Fax +49 69 77 01 97 99 E-mail: hubertus. [email protected] Internet: www.ggm-re.de ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany Dipl.-Ing. Hubertus Plebs companies: •Bilfinger + Berger Bauaktiengesellschaft, Mannheim •Frankfurter Aufbau AG, Frankfurt am Main •Hines, Hous ton / Texas, Fran kfur t am M ai n •GGM Gesellschaft für Gebäude-Management mbH, Frankfurt am Main •etc. construction- and project •Stadtwerke Frankfurt am Main (80,000m²) manager •Hessischer Rundfunk, Frankfurt am Main (30,000 m²) (from 1984 to 2001) •Fürstenhof Leipzig, Leipzig (5 star hotel) •MAIN TOWER; Frankfurt am Main •etc. property management ca. 200 properties in Germany and Europe (since 2001) 2 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany GGM Gesellschaft für Gebäude-Management mbH • Asset Management • Property Management • FM-Consulting • etc. for 30 clients 130 properties 1.3 million m² rentable space currently in Europe and in Germany Brussels 3 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany 1. Frankfurt am Main „MAINHATTAN“ THE city of High-Rise buildings in Europe 4 International conference: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities Experience with optimisation of HIGH-RISE buildings’ energy supply in Frankfurt am Main, Germany High-Rise Buildings managed by GGM Eschersheimer MesseTurm MAIN TOWER Westhafen Kastor Grüneburgweg Landstraße 5 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany 2. OOjbjectives Effective energy supply for High-Rise Buildings in Frankfurt am Main, Germany, under the aspects of guaranteed function of the building and its technical facilities as well as high tenants satisfaction. 6 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany 3. Initial Situation Development, Promotion Great location Great exterior and interior architecture 7 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany Development, Promotion Low energy costs with modern technology !!! Geothermical energy/ earth-cooling storage reservoir Openable windows Block-type thermal power stations 8 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany 4. Reality: start of operation / operation / service / maintenance Operational problems for example because of • heating • cooling low tenant satisfaction! • electric supply • etc. • dirty heat exchanger • facilities designed too big • facilities designed too small • groundwater flow in the • „MAINWASSER“ refrigerating machines • „MAINWASSER“ refrigerating • cooling supply and refrigeration earth-cooling storage • mussel covering machines reservoir 9 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany Problems with service charges low tenant satisfaction Service charges accounting Service charges Service charges Estimation as calculation after calculation after basis 1st year in operation 2nd year in operation renting (3 to 4 years later) (4 to 5 years later) Type of costs Eur/m²/month Eur/m²/month Difference Eur/m²/month Difference gross gross gross 1010 Grundsteuer / Property tax 0,51 0,73 0,22 1110 Wasser / Water 0,06 0,05 -0,01 0,06 0,00 1120 Abwasser / Sewage 0,04 0,02 -0,02 0,05 0,01 1140 Stromverbrauch Allgemein / Electricity consumption in general 0,33 0,31 -0,02 0,41 0,08 Strom Mieter 1 ( Rechenzentrum) / Electricity tenant 1 (computer centre) 0,39 0,72 Strom Mieter 2 / Electricity tenant 2 0,03 0,00 Strom Mieter 3 / Electricity tenant 2 0,00 0,00 Optimisation of energy / Strom Kälte restliche Mietbereiche / 0,00 0,04 0,04 0,06 Electricity, cooling energy remaining areas 0,06 Strom Kälte Mieter 1 (Rechenzentrum) / 0,38 0,30 Optimisation of energy costs Electricity, cooling energy tenant 1 (computer centre) Strom Kälte Mieter 1(Konferenzbereich) / 0,00 0,28 Electricity, cooling energy tenant 1 ( conference room) Strom Kälte (restliche Bauteilaktivierung) / 0,09 0,09 0,00 0,11 Electricity, cooling energy (remaining thermo active building systems) 0,02 Strom Kälte Lupus alpha (Umluftkühlgeräte etc.) / 0,11 0,05 Electricity, cooling energy Lupus alpha (air-cooling facilities etc.) 1170 Fernwärme / District Heating 0,32 0,44 0,12 0,49 0,17 10 Total energy costs 0,84 0,95 0,10 1,18 0,34 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany 5. Optimisation of energy / Optimisation of energy costs What are the most expensive What can you do to reduce? energy consumers? Tenant o user behaviour • Reduction / adjustment of demand o user demand Technical o heating • Adjustment of technical facilities / o cooling modification of operational mode o electric o air condition • Reduction of maintenance costs o elevaters Economic • Use of inexpensive primary energies 11 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany Sensitising user behaviour / Analysing user demand General examples: . 1° C warmer or colder?! . Turninggg off the lights . Motion detectors for underground car parks, staircases, etc. Closing the window when too warm / too cold Specific examples: . One room with 250 m² as serverroom in computer center, no occupany . cost saving around 10T€/month 12 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany Adjustment of technical facilities / Modification of operational modes Exchange / supplement / (partial) shutdown of technical facilities Extension + exchange of Partial shutdown of Shutdown of block- refrigerating machines „MAINWASSER“ type power stations refrigerating Addition machines heat exchanger 13 ItInterna tional conf erence: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities EiExperience w ithtiitifHIGHith optimisation of HIGH-RISE bu ildings’ energy supply in Fran kfurt am M ai n, G ermany Flexible energy use Operating with the currently most inexpensive primary energies 14 International conference: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities ExperiihiiifGience with optimisation of HIGH-RISE bu ildings’ energy supply i n Frankf urt am Main, G ermany Control of operations / Control of energy consumption BMS-checking automatic control of operations Automatic control of energy consumption permanent control of energy consumption 15 International conference: HIGH-RISE BUILDINGS September 20, 2010 PRAGUE Topic: Energy intensity of high-rise buildings in Prague and other European cities ExperiihiiifGience with optimisation of HIGH-RISE bu ildings’ energy supply i n Frankf urt am Main, G ermany Review, modifications What kind of criteria has to be followed with regard to architecture, material, concept of technical operation and ……. ? Reducing energy losses