Heating Cooling la Genve internationale The Genve Lac

Heating & Cooling "la Genève internationale" : The Genève - Lac - Nations (GLN) Project Alexis Mayer – Geneva State Energy Office Euroheat & Power conference Brussels, Belg. – June 5, 2008

Project's context • Concerto : EC project – DG TREN – FP 6 (FP 7 = 3 rd round) Sustainable energetic solutions for urban areas (RES, RUE) – 46 Communities (18 projects) • Tetraener (2005 -2010) – Development of admin. & resid. district – Geneva (CH) GLN + San. Sebastian/Bilbao (Sp. ) + Franckfort (De. ) • Geneva Energy policy – "2 000 W" Society Global Energy conception Energy Master Plan (legal-financial measures, energy planning…) – Energy planning : strategic systematic & opportunist approach Euroheat & Power conference The Geneva Concerto Project Brussels, 05. 06. 08

Geneva's project - Overview Location : Geneva, Nations district Nations Genève Birth : : Principle Localnetwork project (pharmaceutical -1. Thermal Direct cooling, company) heating, irrigation 2. State Promote idea onto area ("district vision" Network) - Adaptation of existing buildings, ecobuildings 3. Local energy distrib. Expand the concept Euroheat & Power conference The Geneva Concerto Project Brussels, 05. 06. 08

GLN Activities : Renewable Energy Source Network: Lake water thermal exchange network (≈ 6 km – 4'700 m 3/h) : > Cooling (direct) > Heating (heat pumps) > Irrigation (instead of potable water) 40 45°C (Direct) Cooling Theoretical thermal potential ≈ 33 MW (∆T=6°C) + Energy recovery on return line Watering Heating Euroheat & Power conference The Geneva Concerto Project Brussels, 05. 06. 08

GLN Activities : Rational Use of Energy Buildings : > Existing buildings : Adaptation to optimize use of the network Regulation (Constant Flow rate, variable Temp. ), distribution systems > Construction of eco-buildings : Minergie® OMC 2 Foyer CS HP PPH OMPI 2 Objectives GLN project (2010 -2011) : ~ - 30% convent. energy consumption ~ - 40% CO 2 reduction Euroheat & Power conference The Geneva Concerto Project : Ecobuildings : GLN perimeters (buildings) Brussels, 05. 06. 08

GLN Activities : Others e Research i g Ecole d’ingénieurs de Genève - Computer modelling (lake, buildings, thermal network) - Audit of 2 existing buildings ( Adaptation to a hydraulic network) Methodology to be developed & implemented - Methodology for envi. & energy district planning (Web. GIS interface) Monitoring (Lake, buildings, network) Training : - Syst. construction, Network (& building adaptation, Energy urban planning) - Building technicians & owners, architects, engineers (+ Students, children) GL N Knowledge & results promotion Euroheat & Power conference The Geneva Concerto Project Brussels, 05. 06. 08

Project Status • Network : – Blue (Provisions), Green & Red (to build) – 70% cooling capacity ("contracts") – Start. Up ≈ spring 2009 • Existing buildings – (heating : fuel oil gas) • Eco-buildings : – At various stages (SERONO = OK, College & Foyer ~ 2010, … OMPI II, OMC II) Euroheat & Power conference The Geneva Concerto Project Brussels, 05. 06. 08

Project Successes and Barriers + Strong public backing + Public-Private partnership + Competitive cost of "free" cooling - Building owners are not project partners & customers reluctant to sign contracts - Existing buildings = big technical challenges Versoix Geneva Euroheat & Power conference The Geneva Concerto Project Brussels, 05. 06. 08

I thank you for your attention. Alexis Mayer alexis. mayer@etat. ge. ch Websites : • http: //www. tetraener. com/eng/antondegi. html • http: //www. unige. ch/cuepe/html/recherche/rapport_u. php? id=48 Euroheat & Power conference The Geneva Concerto Project Brussels, 05. 06. 08

A Few Pictures – Pumping station Technical specifications: Hydraulic network length: ≈ 5 km Max. flow rate: 2700 m 3/h Capacity: 17 MW cooling; 3 MW heating Cost estimate ~ 25 Million € Euroheat & Power conference The Geneva Concerto Project Brussels, 05. 06. 08

A Few Pictures - Network Euroheat & Power conference The Geneva Concerto Project Brussels, 05. 06. 08