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

2. Brussels, 05.06.08 Euroheat & Power conference The Geneva Concerto Project Project's context Concerto : EC project – DG TREN –FP6 (FP7 = 3rd round)  Sustainable energetic solutions for urban areas (RES, RUE) –46 Communities (18 projects) Tetraener (2005-2010) –Development of admin. & resid. district –Geneva (CH)  GLN + SanSebastian/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

3. Brussels, 05.06.08 Euroheat & Power conference The Geneva Concerto Project Geneva's project - Overview Location : Geneva, Nations district Genève Nations Principle : - Thermal network  Direct cooling, heating, irrigation - Adaptation of existing buildings, ecobuildings Birth : 1.Local project (pharmaceutical company) 2.State  Promote idea onto area ("district vision"  Network) 3.Local energy distrib.  Expand the concept

4. Brussels, 05.06.08 Euroheat & Power conference The Geneva Concerto Project GLN Activities : Renewable Energy Source Network: Lake water thermal exchange network (≈ 6 km – 4'700 m3/h) : + Energy recovery on return line (Direct) Cooling Heating Watering > Heating (heat pumps) > Irrigation (instead of potable water) > Cooling (direct) 40 45°C  Theoretical thermal potential ≈ 33 MW (∆T=6°C)

5. Brussels, 05.06.08 Euroheat & Power conference The Geneva Concerto Project Buildings : > Existing buildings : Adaptation to optimize use of the network  Regulation (Constant Flow rate, variable Temp.), distribution systems > Construction of eco-buildings : Minergie® GLN Activities : Rational Use of Energy OMPI 2 OMC 2 CS Foyer HP PPH : Ecobuildings : GLN perimeters (buildings)  Objectives GLN project (2010-2011) : ~ - 30% convent. energy consumption ~ - 40% CO 2 reduction

6. Brussels, 05.06.08 Euroheat & Power conference The Geneva Concerto Project GLN Activities : Others Monitoring (Lake, buildings, network) GLN Research - 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 (WebGIS interface) Training : - Syst. construction, Network (& building adaptation, Energy urban planning) - Building technicians & owners, architects, engineers (+ Students, children) Knowledge & results promotion e i g Ecole d’ingénieurs de Genève

7. Brussels, 05.06.08 Euroheat & Power conference The Geneva Concerto Project Project Status Network : –Blue (Provisions), Green & Red (to build) –70% cooling capacity ("contracts") –StartUp ≈ spring 2009 Existing buildings –(heating : fuel oil  gas) Eco-buildings : –At various stages (SERONO = OK, College & Foyer ~ 2010, … OMPI II, OMC II )

8. Brussels, 05.06.08 Euroheat & Power conference The Geneva Concerto Project 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 Geneva Versoix

9. Brussels, 05.06.08 Euroheat & Power conference The Geneva Concerto Project 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

10. Brussels, 05.06.08 Euroheat & Power conference The Geneva Concerto Project A Few Pictures – Pumping station Technical specifications: Hydraulic network length: ≈ 5 km Max. flow rate: 2700 m 3 /h Capacity: 17MW cooling; 3MW heating Cost estimate ~ 25 Million €

11. Brussels, 05.06.08 Euroheat & Power conference The Geneva Concerto Project A Few Pictures - Network Network