An iron-air battery that stores and releases energy through a reversible rusting process has become the first of its kind to connect with a public electricity grid. On 30 July, the Dutch start-up Ore ...

Wisconsin's Paris Solar-Battery Park, the state's first large-scale energy storage project, is now operational. The park's 12,000 lithium-ion batteries can power over 130,000 homes for up to four ...

Texas temperatures are rising, and so is the demand for electricity. But the grid is holding up great, thanks to record amounts of solar and battery-stored energy. At noon on July 29, solar facilities ...

An early grid battery was installed in the Atacama Desert in Chile 15 years ago. Now, as prices have tumbled, they are increasingly being used around the world. Andes Solar IV, one of the largest ...