According to the Federal Energy Regulatory Commission (FERC), Ken Bossong reports in Renewable Energy World, renewable sources of all kinds—solar, wind, hydro, geothermal and biomass—accounted for more than 10.5 GW of new capacity, or more than two-thirds of all new generation installed in 2015. Wind alone represented more than half of the 16.5 GW of total electrical capacity that FERC estimated entered service in 2015.
According to Bloomberg New Energy Finance however, the news was even better for U.S. renewables. That outlet reported a higher figure of “16 gigawatts of clean energy [installed] in 2015, or 68% of all new capacity.” Bloomberg confirms wind as the biggest winner, providing roughly half of all new American electrical power generation.
What’s also evident, as New Energy Finance analyst Colleen Regan noted, is that, “This is a long-term trend,” based on continuing falling prices for solar and wind in particular, and unlikely to end soon.