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Methane Recycling
Methane gas or "biogas," a by-product of the solids digestion process, is burned to produce electricity at a cogeneration facility owned by Carson Energy and located at the Sacramento Regional Wastewater Treatment Plant. The electricity, enough to power 5,000 homes for a year, is sold to the Sacramento Municipal Utilities District (SMUD). SRCSD buys back some of the steam produced by the recycled methane to heat the wastewater digesters at the Wastewater Treatment Plant. In the event of an extended power failure, this electricity would also serve as a backup power supply to keep the treatment plant running through any emergency.