2) Many power plants can last much longer than the 20-30 years assumed in most levelized cost of electricity (LCOE) calculations, often 50 years or more. This affects the LCOE estimates for solar farms, where almost the entire LCOE is from capital costs that are multiplied by the CCF.

How much lower is the CCF for a 12% loan over a 60-year period compared to the same loan over a 25-year period?