Author: Tina Casey

A new, compact pumped hydro energy storage system uses lower elevations and sloping hills, avoiding the cost and environmental impacts of mountain-based storage systems (screenshot, courtesy of RheEnergise).

New Pumped Hydro Energy Storage System Needs No Mountains

A new, compact pumped hydro energy storage system uses lower elevations and sloping hills, avoiding the cost and environmental impacts of mountain-based storage systems.

Two major utilities are protesting a federal order requiring them to operate the Craig Unit 1 coal power plant in Colorado, originally scheduled to retire on December 31 of 2025 (cropped, courtesy of Platte).

Fighting Back: Utilities Challenge Coal Emergency Order

Two major utilities are protesting a federal order requiring them to operate the Craig Unit 1 coal power plant in Colorado, originally scheduled to retire on December 31 of 2025.

The US startup Terra Energy is expanding its subscription-based rooftop solar panel business in California, Florida, and Texas, the three hottest solar markets in the US (courtesy of Terra Energy via BusinessWire).

Rooftop Solar Panels By Subscription: Up To 50% Savings On Electricity Bills

The US startup Terra Energy is expanding its subscription-based rooftop solar panel business in California, Florida, and Texas, the three hottest solar markets in the US.

Researchers are developing new materials to improve the performance of sodium-ion batteries for stationary energy storage and EVs, too (shown here, an outer layer protects the core of the carbon anode, courtesy of BAM).

Researchers Improve Sodium-Ion Batteries Almost 4× With Thin Layer Of Activated Carbon

Researchers are developing new materials to improve the performance of earth-abundant, sodium-ion batteries for stationary energy storage and EVs, too.