Philadelphia’s regional transit authority, SEPTA, has unveiled a new recycled energy and optimization project which will store kinetic energy produced from trains on one of the city’s subway lines, and integrate that energy into the regional electric grid. SEPTA hopes to use revenues generated from the power sales to help fund additional systems at 10 stations along the train line.
To learn more: http://americancity.org/daily/entry/septa-takes-another-step-towards-sustainability