. . . . . "If one considers just the capital cost of building these plants, without finance charges, the EIA estimates those at $6,171 per kilowatt (in 2008 dollars) for photovoltaic technology, $5,132 per kilowatt for solar thermal technology, and $3,937 for offshore wind.[31] Of course, plant costs can vary depending on site locations, terrain, labor costs, and other factors." .