Will Brake for Batteries

SouthEastern Pennsylvania Transportation Authority, Constellation, and Viridity Energy Announce 8.75-Megawatt Energy Storage Project

A battery storage network, which captures and reuses the energy created by braking subway cars, will help Southeastern Pennsylvania Transportation Authority (SEPTA) reduce operating costs, ensure energy resiliency, and support the stability of the electrical grid. Viridity Energy will provide energy market services for the project, bidding the batteries into the PJM market as frequency regulation resources to help match generation with demand and maintain the desired electrical frequency on the grid.

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