Alternative-energy startup companies offering visions of a "gravity battery" and modular hydropower systems pitched investors at a recent meeting of the Long Island Capital Alliance. One of the ...

Discover how renewable energy sources are stored and delivered to consumers during peak hours. While traditional energy ...

One of the deepest metal mines in Europe – the Pyhäsalmi Mine in central Finland – is to be turned into an enormous gravity battery capable of storing 2 megawatts of energy. As the planet ...

One of the deepest metal mines in Europe – the Pyhäsalmi Mine in central Finland – is to be turned into an enormous gravity battery capable of storing 2 megawatts of energy. As the planet ...

California-based startup Renewell Energy is reaping the cost-saving benefits from transforming idle wells into energy storage systems.

A team from the International Institute for Applied Systems Analysis (IIASA) has developed a plan to create a network of super-efficient gravity batteries that could store tens of terawatt-hours ...

It wasn’t until the early 20th century, however, that the first major gravity-based battery was developed in Switzerland, a pumped-storage hydroelectricity system.