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In late November, in a quiet corner of Devon, England, workers began adding a secret, light brown powder to water as they mixed up a special fluid that can store energy. They blended it with the ...

To cut U.S. greenhouse gas emissions in half within a decade, the Biden administration’s goal, the U.S. is going to need a lot more solar and wind power generation, and lots of cheap energy storage.

A company active in the hydropower sector is working on a new project to build a pumped-hydro storage facility at the site of a former coal mine in Kentucky. Boston, Massachusetts-based Rye ...

The combination of pumped hydro with other storage technologies can increase renewables penetration, improve operational safety and reduce maintenance costs at large-scale hydropower plants, according ...