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Financing Concentrating Solar Power - Subsidy or Investment? Franz Trieb Stuttgart, 15.06.2010. A Strategy for CSP Finance. Fuel. Challenge 1: Investment replaces fuel consumption. DLR 2009. Challenge 2: Known immediate cost but unknown future savings. www.oilnergy.com.
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Financing Concentrating Solar Power -Subsidy or Investment? Franz TriebStuttgart, 15.06.2010
Fuel Challenge 1: Investment replaces fuel consumption DLR 2009
Challenge 2: Known immediate cost but unknown future savings www.oilnergy.com
Challenge 3: Fix Cost but Non-Fix Revenue German power market during the first week-end of October 2009
Challenge 4: Initial Cost Levels above Market Price Ragwitz 2009
Investment Challenges • Long-term investment (20-40 years) not only for the power plants but also for their „fuels“. • Unknown future savings compared to volatile and unpredictable conventional fuel prices. • Known long-term cost but unknown long-term revenues if electricity output is fluctuating and sold at spot markets. • Additional cost of early plants cannot be recovered under conventional market conditions and less if competitors are subsidized. • Pioneers are punished by market forces because markets are adapted to conventional power schemes.
950000 772500 595000 417500 240000 95000 39000 1000 8246 CSP Required Tariff Model
B1 B2 B B3 Break Even with different load segments
Case 1: 100% Substitution in peak and medium load segment by CSP
Case 1: 100% Substitution in peak and medium load segment by CSP a b c
Calculation of Annual Solar Share in the Initial Phase
1st Step: The Load Curve is devided into Peak, Medium and Base Load
In higher time resolution it looks like this for a summer week
Peak Load Solar
2nd Step: The peak segment is separated and then, the lower part is covered by CSP (solar or hybrid), while the upper part (residual capacity) is covered by conventional peaking plants
In higher time resolution it looks like this for a summer week
3rd Step: Medium Load is separated and the lower part covered by CSP
In higher time resolution it looks like this for a summer week
4th Step: Base Load is separated and the lower part covered by CSP
In higher time resolution it looks like this for a summer week
Case 2: Partial Substitution of Fuel by CSP a c b