Constellation Energy has inked a 10-year contract to provide wind power to the Washington Suburban Sanitary Commission. The 10-year agreement will meet WSSC’s goal of using wind power for approximately one-third of its electricity needs.

WSSC General Manager Andrew Brunhart said the agreement will lower the agency’s energy expenditures by an estimated $20 million dollars over 10 years.

The wind power for the WSSC agreement will be generated by a project developed by Edison Mission Group, a subsidiary of Edison International in Somerset County, Pa. Constellation NewEnergy won a competitive bid for the 10-year, 30-megawatt power purchase agreement. Beginning Jan. 1, 2008, WSSC will receive 85 percent of the wind project’s power output; CNE will retain and market the remaining 15 percent.