Based on EIA survey data for new, utility-scale electric generators (those with a capacity greater than one megawatt), capacity-weighted average construction costs for many generator types have fallen in recent years.
Annual changes in construction costs include the effects of differences in the geographic distribution of installed capacity between years, differences in technology types, and other changes in capital and financing costs…
The capacity-weighted cost of installing wind turbines was $1,661 per kilowatt (kW) in 2015, a 12% decrease from 2013…The cost of utility-scale solar photovoltaic generators declined 21% between 2013 and 2015, from $3,705/kW to $2,921/kW…The average cost of natural gas generators installed in 2015 was $696/kW, a 28% decline from 2013…Construction costs alone do not determine the economic attractiveness of a generation technology.
Other factors such as fuel costs (for generators that consume fuel), utilization rates, financial incentives, and state policies also affect project economics and, in turn, the kinds of power plants that are built. --- EIASee this post.
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