from: http://rss.slashdot.org/ ~ r / Slashdot / slashdot / ~ 3/i0-gblzqc_M/Tapping-Subway-Trains-For-Energy:

An anonymous reader writes Industrial manufacturer of energy wheel Vycon believe they can exploit the huge amount of kinetic energy carried by the movement of subway trains to subsidize the power systems of the city. Not only does this reduce emissions but would also prevent emergencies peak power. This energy could be used to run trains again – a subway train of 10 cars in the system of New York requires a shake three to four megawatts of electricity for 30 seconds to get up to cruising speed – it’s enough energy to 1300 average U.S. homes.