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RENEWABLES FOR HEATING AND COOLING

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RENEWABLES FOR HEATING AND COOLING ( renewables-for-heating-and-cooling )

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German Federal states (Länder) have also contributed significantly in support of renewables for heat production. Evaluation A total of 621.9 PJ of heat was produced in Germany in 2004. Just over 13% was consumed by the industrial sector with the remaining 85% by the residential sector (IEA, 2007a). The percentage of renewable energies within the total energy demand for heat in Germany has been increasing steadily from 3.5% in 1998 to 5.9% by 2006 (BMU, 2007). Most renewable heat is generated from biomass although, the solar thermal and geothermal markets have also shown important growth (Figure B10). Figure B10 Renewable heat generation in Germany by sector from 1995 till 2006 Heat generated (TJ) 350 000 300 000 250 000 200 000 150 000 100 000 50 000 0 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Sources: ZSW, 2006; ESTIF, 2006a. Biomass Geothermal Solar thermal Complications in the design of the MAP lay in its stipulations for mandatory co-financing for district heating plants. State-level support programmes do not exist to supply co-financing thereby disqualifying MAP funding for district heating plants through until 2005 when these conditions were mended (EGEC, 2006). Solar thermal The growth of the solar thermal market has been rapid, although the contribution to the total heat supply is negligible (only 0.2% in 2006) (BMU, 2007). Germany is now a leader in the European solar thermal market, with the most installed capacity in 4% of German homes, primarily for solar hot water although installations of combination systems for both water and space heating are increasing. Solar thermal production grew by 25%-50% per year from 1990 to 2001 (Figure B11). Annual growth rates in the 21st century have fluctuated in accordance with the funding of the MAP, but have remained positive. By the end of 2006, over 5 600 MW (8 Mm2) of solar thermal capacity had been installed (SHC, 2006; EurObserv’ER, 2006; BMU, 2007). Low-interest loans in the 1990 ERP Environment and Energy Saving Program provided support for solar thermal systems from 1990. Grants of the 1993 Solarthermie 2000 programme,62 the 1994 Solarthermie200 62. Solarthermie 2000 during 10 years of operation funded 63 large solar and 7 district heating systems by 2003 (IEA, 2004). 159

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