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Sustainability Report - Bank Sarasin-Alpen

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Solar Energy 2005<br />

need to be more effective public subsidisation programmes or legal measures,<br />

such as the previously mentioned “Barcelona model” in Spain or the planned<br />

“Regenerative Heat Act” in Germany. The European industry association ESTIF,<br />

together with the European Renewable Energy Council (EREC) 22 and other organisations,<br />

has published a declaration calling for an EU directive to ensure that<br />

renewable energies (solar thermal power, biomass and geothermal energy) will<br />

cover roughly 20% of heating and cooling energy by 2020.<br />

Fig. 24: <strong>Sarasin</strong> forecast for the global solar collector market. Newly<br />

installed collector capacity in GW th per year<br />

New ly installed capacity p.a. (left scale)<br />

Annual grow th rate (right scale)<br />

400<br />

40%<br />

350<br />

35%<br />

Newly installed capacity [GWth/a]<br />

300<br />

250<br />

200<br />

150<br />

100<br />

50<br />

30%<br />

25%<br />

20%<br />

15%<br />

10%<br />

5%<br />

0<br />

2000<br />

2001<br />

2002<br />

2003<br />

2004<br />

2005<br />

2006<br />

2007<br />

2008<br />

2009<br />

2010<br />

2011<br />

2012<br />

2013<br />

2014<br />

2015<br />

2016<br />

2017<br />

2018<br />

2019<br />

2020<br />

Annual growth rate<br />

0%<br />

Source: <strong>Sarasin</strong>, 2005<br />

Global growth of<br />

25-30% up to 2010<br />

In 2004 the world’s newly installed collector capacity was 11.7 GW th , roughly<br />

30% higher than in 2003. For the current year 2005 we predict that newly installed<br />

collector capacity worldwide will reach around 15.5 GW th , which is 32%<br />

more than last year. This growth will come mainly from the boom in China, but<br />

also from other non-European countries. The global growth rate is likely to remain<br />

between 25% and 30% up to 2010. In 2010 we therefore predict a market<br />

volume (newly installed collector capacity) of 55 GW th , with roughly 250 GW th on<br />

stream worldwide. As the market starts to become saturated, we expect average<br />

growth will then ease back in the following decade (2011- 2020) to around 20%<br />

p.a. The global market for newly installed solar collectors would therefore reach<br />

a volume of approximately 390 GW th in 2020 (see Fig. 24).<br />

Solar-assisted cooling<br />

Conventional AC systems<br />

can cause power cuts<br />

Solar-assisted cooling (SAC) is becoming increasingly important worldwide, not<br />

least because of global warming. Demand for air conditioning is also booming as<br />

standards of personal comfort rise. In cities such as Houston, Sydney, Madrid<br />

and Rome, for example, almost all the buildings are now fully air-conditioned.<br />

Even in Germany around half the large office buildings already have air conditioning,<br />

with a steep upward trend. In some countries this surge in demand is increasingly<br />

causing network overload and failure of the mains grid on hot summer<br />

days. Solar-assisted cooling therefore has enormous potential for saving electricity<br />

worldwide. Air conditioning is also a huge market in commercial terms. The<br />

22<br />

Joint Declaration for a European Directive to promote renewable heating and cooling; European Renewable<br />

Energy Council (EREC), Brussels, April 2005; www.erec-renewables.org<br />

Dezember 2005 43

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