Figure XI-7.- Terrestrial solar photovoltaic power cost for 5-GW plant. D. Summary Remarks Preliminary SPS cost and economic analyses indicate the following: 1. The SPS appears to be an economically viable electrical power generation system for the early 2000 time period. The cost to produce electricity is 29 to 115 milIs/kWh based on a 15-percent rate of return on capital investment and a 0.92 plant capacity factor. The COE based on nominal system characteristics (weight, efficiencies, transportation, etc.) is 50 to 60 milIs/kWh. These costs are in the competitive range with the 28 to 121 mills/kWh for other advanced systems of current interest and, at the lowest values, compete with conventional coal and nuclear costs (15 to 29 mills/kWh).
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