Jul 17, 2017

How America makes electricity

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Denmark generated almost half of its electricity from wind in 2019

Wind turbines in the Baltic Sea. Photo: Patrick Pleul/picture alliance via Getty Images

Wind power accounted for a record 47% of the electricity consumed in Denmark in 2019, up from 41% in 2018 and 43% in 2017, Reuters reports.

Why it matters: The country’s grid operator Energinet said Thursday that cost reductions and improved offshore turbines contributed to the boost.

Go deeperArrowJan 2, 2020

Electric school buses are batteries for the grid

Illustration: Sarah Grillo/Axios

Utility companies are helping cash-strapped school districts replace diesel buses with electric ones that have a secondary purpose: helping to manage electricity demand.

Why it matters: Electric buses are cleaner, but cost about three times more. Using them for energy storage can help close that cost gap and smooth out energy demand on the electric grid.

Go deeperArrowJan 10, 2020

U.S. greenhouse gas emissions fell by estimated 2.1% in 2019

Power lines in California in 2019. Photo: Jane Tyska/MediaNews Group/The Mercury News via Getty Images

U.S. greenhouse gas emissions fell by 2.1% in 2019 due to a decrease in national coal consumption, according to estimates from the Rhodium Group released Tuesday.

Why it matters: Power generated from coal plants fell by a record 18%, and overall emissions from the power section declined by almost 10% — despite an increase in emissions from natural gas.

Go deeperArrowJan 7, 2020