ABB’s energy storage work with the SEPTA wins innovation award

Posted on October 9, 2014

Power and automation technology group, ABB, today announced that their work to transform the Southeastern Pennsylvania Transit Authority (SEPTA) system into both a smart consumer and producer of energy has won the prestigious award for “Innovation in Mobility” at the Energy Storage North America (ESNA) conference, the largest grid energy storage event.
ABB led the design, supply and integration of the “Wayside Energy Storage Project” within SEPTA‘s aging transit infrastructure. Originally installed in April 2012, the system captures braking energy for redistribution into the SEPTA power network while generating revenue with behind the meter load response to sustain the local grid and the wholesale energy market.

Results achieved to date show that the single substation system on the Market-Frankford Line in North Philadelphia generates over $250,000 of annual energy savings and earned revenues. The initiative supports SEPTA’s Sustainability Program goal of reducing energy intensity (energy use per passenger mile) by 10% by 2015.

“SEPTA is proud to receive this award,” said SEPTA Chief Engineer Andrew Gillespie. “Initiatives such as the Energy Optimization Project are key elements in SEPTA’s overall Sustainability Program, the success of which is critical to transit agency’s ability to serve its riders and the Philadelphia region for both the short- and long-term.”

“Recovering energy lost during braking is one of SEPTA’s primary energy-saving initiatives,” said Jacques Poulin, Product Manager of Energy Storage, ABB Railway. “Eventually, the industry-wide deployment of these smart grid technologies will deliver substantial economic and environmental benefit to public transit systems.”
The transit authorities are uniquely positioned to forever change their cost structure by harnessing regenerative braking. “Regenerative braking” captures the kinetic energy of the decelerating vehicle and converts it into electricity. ABB deployed the ENVILINE™ ESS which connects to the catenary or “third rail” of the train system to recover this otherwise wasted energy. In this project, the functionality of the ESS was expanded to feed the energy back to the trains, while additionally modulating the load of the substation as a revenue generating asset connected to the PJM network, the regional transmission organization (RTO) that coordinates the movement of wholesale electricity.

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