A new method could transform abandoned coal mines across the U.S. into massive underground batteries for clean energy.

Oak Ridge National Laboratory is investigating whether thousands of abandoned coal mines scattered across the United States could serve as underground reservoirs for pumped storage hydropower, ...

Sodium-ion batteries offer multiple advantages over their lithium-ion cousins. Energy storage, however, isn't one of them. That might be set to change thanks to a new method of creating the batteries ...

A water battery with tofu-like salts can withstand 120,000 charges and could last for centuries without degrading.

China's new invention uses environment created by tofu brine to be more long-lasting than lithium batteries.

Scientists discovered that keeping water in sodium vanadate hydrate doubles a sodium battery’s charge capacity and stability. The same technology can also remove salt from seawater, creating potential ...

While utility-scale storage capacity for renewables such as wind, solar and batteries is increasing steadily, utilities are historically apprehensive when it comes to implementing these technologies, ...

A 99-megawatt battery energy storage system from Alliant Energy could have the capacity to power 100,000 homes for four hours, the utility says.

A proposed battery storage facility north of Springfield would carry too much risk in case of fire or contamination, residents told the planning board.

SILVER CITY, Okla. — A proposed battery energy storage project in northwest Creek County is drawing pushback from residents who fear the project could threaten their farms, water supply and way of ...

The mall may soon become home to battery energy storage facilities and data centers, sparking environmental and economic ...