The Southeastern Pennsylvania Transportation Authority (SEPTA), which operates mass transit in the Philadelphia region, announced construction of a second system to recover and store braking train energy as electricity. Similar to a pilot system installed in 2012, this system will transfer electricity to batteries and bid this electricity into PJM Interconnection’s electricity frequency market.
Spurred by technological advances and supportive regulations, companies are deploying innovative solutions that bring value—beyond energy—to the electric grid. In this instance, PJM was the first grid operator to receive approval for rules responding to FERC Order 755. This order requires RTOs and ISOs to develop methods to compensate technologies, such as storage systems, that can provide frequency response more quickly than conventional generators. ScottMadden expects these market rules will spur continued storage advancements and growth in PJM. In December 2013, SNL reported 270 MW of storage was under construction or being studied in the PJM interconnection queue.
Public Link: http://www.railjournal.com/index.php/metros/septa-extends-philadelphia-energy-storage-project.html
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