About Cos Cob Power Station
Historic, Historical Places, Interesting Places, Historic Districts
Cos Cob Power Station was a historic power station near the Metro North Railroad tracks, the Mianus River and Sound Shore Drive in the Cos Cob area of Greenwich, Connecticut.
The Spanish Revival style station building of 1907 was significant as part of the first mainline railroad electrification in the United States, using alternating current (AC) electrification. The New York City subway systems and a Hudson River railroad line used lower voltage direct current (DC) electrification, but for longer distances that would mean high transmission losses or frequent and closely spaced substations.