Solar Thermal Energy

Transcription

1 Renewable Energy India 2008 Expo International Exhibition & Conference 22nd August 2008, New Delhi Solar Thermal Energy Gerhard Stryi-Hipp Managing director, German Solar Industry Association (BSW-Solar) Chairman of the steering comittee, European Solar Thermal Technology Platform (ESTTP), Member of the board, European Solar Thermal Industry Federation (ESTIF)

2 We should leave oil before it leaves us Fatih Birol, chief economist IEA, March 2008 Brent Crude Oil price increased from 50 $ (Jan 2007) to 147 $ (July 2008) per barrel Very good reasons to change our energy supply system ENERGY SUPPLY IS NOT SECURE Energy import dependency from only a few countries is growing strongly FOSSIL AND NUCLEAR ENERGY SOURCES ARE FINITE Growing demand and limited resources lead to exploding energy prices CLIMATE CHANGE REQUIRES ACTION Climate change is mainly caused by fossil energy consumption, we have to reduce CO 2 -emissions worldwide CO 2 -Concentration is growing continuously (IPCC 2007) BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 2

3 The Sustainable Solution: Mix of Renewable Energies Only Renewable Energies are everlasting are domestic energy sources are sustainable do not harm the climate are becoming cheaper and cheaper increase domestic and regional added value are creating jobs Quelle: Aus BMU, Daten EE, Juni 2007 Challenges for RES are the financing of investments as long as RES are more expensive than fossil and nuclear energy the reconstruction of the energy supply system to a distributed generation system based on RES Quelle: Solarwatt Quelle: Wagner & Co BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 3

4 Solar Thermal Energy: Underestimated Source of Power Source: IEA-SHC Solar Heat Worldwide, Edition 2008, BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 4

5 World Solar Thermal Markets 2006 Newly installed in 2006: 26.1 Mio m² = 18.3 GWth 1 China MWth 69% Source: IEA-SHC, Solar Heat Worldwide Edition 2008, 2 USA 1099 MWth 6% 3 Germany 1071 MWth 6% ROW 299 MWth; 2% 4 Australia; 505 MWth; 3% 5 Turkey 490 MWth; 3% 6 India 350 MWth; 2% 7 Brazil 304 MWth; 2% 8 France 211 MWth; 1% 9 Austria 210 MWth; 1% 10 Japan 11 Greece 12 Israel 13 Italy 14 Spain 15 Taiwan 16 Mexico 17 Sth Africa 18 Switzerld 19 Canada 20 Cyprus BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 5

6 European Solar Thermal Markets 2007 Poland 47 MWth; 2% Austria 197 MWth 10% Greece 198 MWth 10% Spain 184 MWth 10% France 179 MWth 9% Italy 172 MWth 9% Switzerland 46 MWth; 2% Cyprus 46 MWth; 2% UK 38 MWth; 2% Belgium 29 MWth; 2% Sweden 18 MWth; 1% Czech Rep. 18 MWth; 1% European Market 2007: 2.7 Mio m² 1.9 GWth Source: ESTIF/BSW Germany 658 MWth 34% Rest of EU 33 MWth; 2% Portugal 18 MWth; 1% Denmark 16 MWth; 1% Netherlands 14 MWth; 1% Ireland 11 MWth; 1% BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 6

7 Annually installed collector area [1 000 m² Development of the German Solar Thermal Market Market data 2008 (estimation) New installed: MW = 1.5 Mio m² Total installed: MW = 10.7 Mio m² Turnover: Mio Euro Employees: Share of vacuum tube collectors: 12% Flat plate collectors Vacuum tube collectors Trend 18% growth * 2009* 0 * estimation Source: BSW-Solar Update August 2008 BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 7

8 Domestic Hot Water Production Market share in Germany: 55% Typical data for Germany (4-person household) Forced circulation 5-6m² collector area l. solar storage tank Costs ~ 4,000 5,000 ($5,800 7,500) Image: Schüco Image: Paradigma Flat-plate or vacuum tube collector Solar station with controls and circulation pump Water storage tank Condensing boiler oli, gas new: wood pellets rarely: elec. power Cold water inlet BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 8

9 Solar Thermal Combined System Market share in Germany: 45% Solar station with controls and circulation pump Image: Roto Frank Flat-plate or vacuum tube collector Combined solar thermal system for DHW and auxiliary room heating 8-15 m² collector area 500-1,000 litres combined storage Costs ~ 10,000 15,000 ($14,500 $22,000) Forced circulation system Buffer storage Dom. hot water storage Cold water inlet BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 9 Heating circuits Boiler Combi storage Image: Paradigma

10 Special Know-how in Large Scale Solar Thermal Systems Large solar thermal systems for multi family houses, hotels, hospitals, nursing homes etc. must to be designed well German companies have a lot of experience and offer matured systems Image: Solvis Image: Wagner & Co BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 10

11 Source: Viessmann Source: Fraunhofer ISE Promising Technology: Solar Assisted Cooling Solar thermal driven cooling machines Cooling demand and solar supply are fitting well There are more than 100 systems installed in Europe and they are working well Small systems for office buildings and one/two-family houses are under development Bundespresseamt Berlin IHK Freiburg Adsorption cooling machine BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 11

12 Solites Solites Solar District Heating will play a big role in the future Semi-detached houses in Neckarsulm, Germany Solar disctrict heating in Marstal, Denmark 17,000 m² collector area Arcon 12,000 m² seasonal storage Friedrichshafen, Germany BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 12

13 Solar Thermal Vision 2030 of the European Solar Thermal Technology Platform ESTTP New buildings 100% solar heated buildings will be the building standard Existing building stock Solar refurbished buildings, > 50% solar heated, will be the most cost effective way to refurbish the building stock Industrial and agricultural applications solar thermal systems will cover process heating and cooling demands Overall goal: Cover 50% of the low temperature need up to 250 C with solar thermal BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 13

14 Example: Air Collector Facade In future the building envelope is not only used for protection and aesthetics but also for absorption of solar energy and therefore supplying the building with energy BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 14

15 Conclusions Solar Thermal Energy Solar thermal energy will play an important role to provide hot water, space heating and cooling in the future sustainable energy mix The potential and the importance of solar thermal energy was underestimated worldwide, now we have to develop the technology and the markets systematically BSW-Solar 2008 Solar Markets Germany, August 22nd, 2008, New Delhi 15

16 Thank you very much for your attention BSW-Solar Visitor centre 2008 in a Bavarian nature Solar reserve: Markets 100% Germany, solar supply August 22nd, 2008, New Delhi Image: Sun-Pro 16