injecting biogas from manure into its natural gas
April 02, 2008 Northern California Utility Draws on Renewable Natural Gas Burning natural gas is not normally seen as a use of renewable energy, but a project underway in northern California is adding a renewable dimension to this traditional fossil fuel. In early March, Pacific Gas and Electric Company (PG&E) began injecting biogas from manure into its natural gas pipeline in Fresno County. The 5,000-cow Vintage Dairy