Farm Power, a Skagit County renewable energy company, and Puget Sound Energy, Washington’s oldest local utility, have announced the entry into service of the state’s newest source of clean, sustainable power: an anaerobic dairy digester that transforms cow manure into both a source of electricity and a source of economic vitality for the region’s agricultural community. The dairy digester is capable of producing up to 750 kilowatts of electricity – or approximately the energy needed to power 500 homes – and will provide electricity to PSE’s Green Power Program.