Every time a subway train brakes on SEPTA’s Market-Frankford Line electricity is generated. By next summer, a large-scale battery could be in place to capture and recycle that energy under a pilot project Viridity Energy Inc. started this week.
The energy conserving move on the transportation authority’s highest ridership line is just one of several actions that SEPTA is planning or has made as part of a broader environmental sustainability strategy. All stand to benefit the transit agency when state-imposed energy rate caps on Peco Energy Co. expire Dec. 31.
SEPTA spends an estimated $20 million annually to power its subway, trolley and regional rail lines. The Market-Frankford Line project will turn what was once an expense on the books into revenue by enabling SEPTA to capture energy that can be used later or sold back to the power grid, Viridity Energy President and CEO Audrey Zibelman said.
Read more: SEPTA hopes a giant battery will capture energy now lost - Philadelphia Business Journal
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