Green Mountain Power Corp,Green Mountain Power has announced that it will rely on rating services from Standard & Poor’s credit agency and discontinue its practice of using two separate agencies.”S&P is a well respected and professional agency that will fulfill our rating needs,” said Dawn Bugbee, chief financial officer of GMP. “Using one agency will streamline our financial review and ultimately save our customers money.”In the past, Green Mountain Power engaged both Standard & Poor’s and Moody’s rating agencies. This change, GMP said, is part of Green Mountain Power’s ongoing and continuous process to drive costs out of the company and provide customers with the most efficient and cost-effective service possible.COLCHESTER, VT–(Marketwired – July 24, 2013) -GMP.About Green Mountain PowerGreen Mountain Power generates, transmits, distributes and sells electricity in Vermont and is a leader in wind and solar generation. The Company, which serves more than 250,000 customers, has set its vision to be the best small utility in America. For further information, visit www.greenmountainpower.com(link is external).