WALTHAM, Mass., May 24, 2012 /PRNewswire/ -- Tecogen Inc. today announced that American DG Energy Inc.

WALTHAM, Mass., May 24, 2012 /PRNewswire/-- American DG Energy Inc.

LOS ANGELES, May 22, 2012 /PRNewswire/ -- To help accelerate the commercialization of new technology that uses the sun's energy rather than the electric grid or natural gas to power

HOUSTON, May 22, 2012 /PRNewswire/ -- GDF SUEZ Energy Resources NA, one of the largest competitive retail electricity providers to commercial, industrial, and institutional customers in

WALTHAM, Mass., May 22, 2012 /PRNewswire/ -- EuroSite Power Inc., an On?Site Utility, offering clean electricity,