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  • Solar photovoltaic costs are declining, but estimates vary across sources

    reported utility-scale solar PV capital costs, as explained in the article text
    Source: U.S. Energy Information Administration, Form EIA-860 Annual Electric Generators Report, and based on LBNL, Utility-Scale Market Report 2016, and NREL, U.S. Solar Photovoltaic System Cost Benchmark: Q1 2017
    Note: EIA values for 2016 are preliminary. Values shown for EIA and LBNL are the capacity-weighted values. LBNL also publishes other cost metrics in their report, including median and range values.

    Costs for utility-scale solar photovoltaic (PV) systems have declined in recent years—most sources show that system costs on a per-watt basis have fallen about 10% to 15% per year from 2010 through 2016. The level of those costs in certain years often varies across sources for reasons largely attributable to the way these costs are estimated.

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