Chattanooga’s Moccasin Bend Environmental Campus is launching a project that will generate electricity from wastewater methane, a move expected to significantly reduce the campus’s roughly $300,000 monthly energy costs while turning a treatment byproduct into a reliable on-site energy source.
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Once fully operational at three megawatts, the installation will rank among the largest municipal biogas-to-power projects in the Southeast and represents a step toward stabilizing long-term energy costs for ratepayers while advancing Chattanooga’s broader sustainability goals.

MBEC selected Mainspring Energy to install six linear generators this year, producing an initial 1.5 megawatts of electricity using methane captured during wastewater treatment processes. Six additional generators are planned following campus upgrades, doubling total generating capacity.

1.5 megawatts could be equal to powering 300 to 1,000 homes, based on Google research.