Ameresco launches construction of $140 million biogas project near Elk Grove


California Construction News staff writer

Ameresco, a cleantech integrator specializing in energy efficiency and renewable energy, has started construction on an advanced technology biogas cogeneration facility in California under a nearly $140 million contract. The project at the Sacramento Area Sewer District’s EchoWater Resource Recovery Facility near Elk Grove will transform methane from the sewage treatment process into renewable electricity and heat.

The on-site facility will include an integrated 13.4 MW cogeneration plant utilizing fuel cell and engine technology.

Construction is projected to be completed by July 2026.

“This project exemplifies our ongoing mission to protect public health and the environment by collecting, treating, and recovering resources from sewage,” said Christoph Dobson, general manager of SacSewer.

Michael Bakas, executive vice president of Ameresco, highlighted the benefits of capturing and repurposing biogenic methane.

“This voluntary initiative by SacSewer, backed by a significant investment in the advanced renewable energy center, underscores their dedication to the environment and their surrounding community.”


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