COLCHESTER, Vt.--(BUSINESS WIRE)--March 9, 2006--Green Mountain Power (NYSE:GMP) was named today "Large Company Leader of the Year" by Vermont Businesses for Social Responsibility (VBSR). The award recognizes companies for their sustained commitment to socially responsible business practices.

In announcing the award, VBSR commended Green Mountain Power for issuing its report on social responsibility using the Global Reporting Initiative guidelines, one of only a handful of companies in Vermont and the first utility in Vermont to do so.

"This is a remarkable accomplishment that each and every one of us at Green Mountain Power is proud of. It confirms that we have made significant progress in our efforts to run our business in a way that is environmentally, socially and economically responsible," said Chris Dutton, president and chief executive officer of Green Mountain Power. "Our employees have worked very hard to transform this company into a high performing enterprise that holds strong environmental and corporate responsibility values and I am happy to see them recognized."

Green Mountain Power's Corporate Responsibility Report describes the environmental, social and financial dimensions of its operations. "Publishing a corporate responsibility report is an important way to communicate transparently about where we have performed well and where we need to improve," said Mr. Dutton. "This report documents the
Company's progress towards sustainability."

The report is available on line at http://www.greenmountainpower.biz/whoweare/green.shtml, Hard copies are available by calling 802-655-8410 or mailing requests to Green Mountain Power, 163 Acorn Lane, Colchester, VT 05446, Attn: Penny Collins.

Vermont Businesses for Social Responsibility (VBSR) was founded in 1990 by a group of businesspeople who believed businesses have as much responsibility to workers, communities and the environment as they do to being financially successful. VBSR was started to pioneer a new focus for business: "the multiple bottom line." VBSR is one of the largest regional socially responsible business organizations in the US, even though it represents a small state.

The Global Reporting Initiative (GRI) uses a multi-stakeholder process to develop and disseminate globally applicable Sustainability Reporting Guidelines. The Guidelines were created for voluntary use by organizations for reporting on the economic, environmental and social dimensions of their activities, products and services. GRI is a collaborator of the United Nations Environment Program and works in cooperation with the UN Global Compact.

Green Mountain Power Corporation (www.greenmountainpower.biz) is a Vermont-based energy services company serving 90,000 electric customers.

Copyright Business Wire 2006

Green Mountain Power Corporation

Green Mountain Power Corporation

Green Mountain Power, an investor-owned electric utility serving one-quarter of Vermont's population, embraces speed, efficiency, open communication and environmental commitment. As a member of Ceres, Green Mountain Power is committed to continuous environmental improvement and uses the Global Reporting Initiative guidelines to report on its environmental, economic and social activities. In 2006, Vermont Businesses for Social Responsibility named Green Mountain Power "Large Company Leader of the Year." Green Mountain Power owns and operates the largest commercial wind generating station in New England. In 2005, approximately 48 percent of the fuels used to generate electricity came from water, wood and wind.

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