Energy Storage Systems to Recover Braking Energy on SEPTA Network

Energy Storage Systems to Recover Braking Energy on SEPTA Network

This piece was originally published in the April 2016 issue of ei, the magazine of the electroindustry.

By Daniel Simounet, Director, Transportation Market Segment, North America, ABB

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Under a recent contract negotiated between ABB and Constellation, a subsidiary of Exelon Corporation, ABB will engineer, manufacture, and commission seven energy storage systems (ESSs) with lithium-ion battery storage from Saft America for the Southeastern Pennsylvania Transportation Authority (SEPTA) train network.

The ESSs will provide 8.75 MW of frequency regulation support on the PJM electric grid and recover train-braking energy on the Southeastern Pennsylvania Transportation Authority (SEPTA) train network. This contract brings ABB’s installed base of commercially operating ESS train-braking energy recovery systems to 15 MW, the largest of any supplier.

Smart Power, Sustainable Power

Whenever a train brakes, energy is returned to the traction line, but with an ESS, this energy can be saved and reused for acceleration. ESS is a wayside energy management system that stores and returns the braking energy, which lowers energy costs, reduces peak power demand and penalties, stabilizes the voltage for better acceleration, and provides emergency traction power.

According to Derek Monk, Power Conversion general manager for ABB in Canada, “Transit authorities across North America are faced with increased energy costs and pressure to achieve sustainability objectives. ESS for DC rail transportation is an effective and economical solution that addresses these issues.”

The project is among the first commercially deployed battery storage systems in a transit operation.

Click here to learn more about train-braking energy recovery.

As the director of the Transportation Market Segment for North America, Mr. Simounet leads the industry sector initiative across all ABB divisions that are active in the rail and transportation industries.

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