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Pumped storage hydro, utility-scale batteries return about 80% of the electricity they store

Pumped-storage hydroelectric facilities in the U.S. operated with an average monthly round-trip efficiency of 79%, and the utility-scale battery fleet operated at 82%, according to 2019 data from the U.S. Energy Information Administration (EIA). Round-trip efficiency is the percentage of electrici...
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Jay Egg wins award for proposing a renewable solution over a gas-fired project planned for NYS Capitol

The Constellation Prize is about ‘Reimagining What Engineering Is For.’ Credit: The Constellation Prize Renewable Energy World contributor is being awarded a Constellation Prize for Policy Impact in response to a new heating/cooling solution he proposed for the 50-year-old Plaza in Alban...
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Why doesn’t every homeowner go solar? Top 5 reasons may surprise you

By Laureen Peck, CMO, Solar Energy World The truth is, not everyone qualifies for solar. For example, if you don’t have enough unshaded roof space or property to generate enough power to offset your electricity bills, then going solar wouldn’t be a smart thing to do. Fortunately for our enviro...
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Renewables now account for 24% of US’ total energy generation capacity

Renewable energy sources (i.e., biomass, geothermal, hydropower, solar, wind) strongly dominated new US energy generation capacity additions in 2020, according to the SUN DAY Campaign of data released by the Federal Energy Regulatory Commission (FERC). Combined, renewables accounted for 22,451MW, or...
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