SoLar EnErgY TEcHnoLogY PrIMEr: a SuMMarY
8 Peaking power plants are plants fired up during periods of peak demand, and may use more expensive (and less clean) electricity sources. The cost of fossil fuel generation is the highest in the day, and coincides with peak PV power generation. 9 Insolation is a measure of solar radiation energy received on a given surface area in a given time.