A flywheel energy storage system works by spinning a large, heavy wheel ... energy is converted back into electrical power ...

Generators provide sustained power ... this new approach is a collection of smaller flywheels units rather than a single large flywheel. This lets individual small flywheels spin much faster ...

Beacon Power LLC, a Tyngsborough-based manufacturer of large flywheel energy storage systems ... Then the whirling wheels are connected to generators to release the energy when it’s needed.

China has connected to the grid its first large-scale standalone flywheel energy storage project in Shanxi Province’s city of Changzhi. The Dinglun Flywheel Energy Storage Power Station broke ...