The transportation sector accounts for nearly half of United State's total energy consumption. With fuel prices continually climbing, those energy costs are cutting into already-strained state budgets. To combat its carbon footprint, the South East Pennsylvania Transit Authority (SEPTA) has outfitted its light-rail trains with regenerative braking technology. That's right: They'll power the system every time they slow down.
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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/AjFx1o9ePb0/philadelphias-subway-trains-are-becoming-rolling-power-factories
INTERNATIONAL BUSINESS MACHINES (IBM) INTERDIGITAL COMMUNICATIONS INTEL INSIGHT ENTERPRISES
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