SacramentoInno – SacSewer hires Ameresco to build cogeneration plant near Elk Grove to get electricity from methane

Ameresco Inc. is the prime contractor on a nearly $140 million new advanced technology biogas cogeneration plant for the Sacramento Area Sewer District at its EchoWater Resource Recovery Facility near Elk Grove.

When it opens in July 2026, the new on-site plant will process methane generated by the sewer district to produce 13.4 megawatts of electricity annually at a cogeneration plant, offsetting the need for the sewer district to buy electricity.

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