
Winona WWTP
This small wastewater treatment plant operates a 130 kW microturbine CHP system using renewable digester gas, since 2008.

Winona WWTP
This small wastewater treatment plant operates a 130 kW microturbine CHP system using renewable digester gas, since 2008.
Client:
City of Winona
Industry:
WWTP
Location:
Winona, Minnesota
System Size:
2 x C65 (130 kW)
Operating Mode:
Grid Connect
Controls:
Vergent
Commissioning Date:
2025 and 2008
Town WWTP Evolves with Clean Energy
When the City of Winona, MN, first upgraded its wastewater treatment plant in 2008 with a microturbine CHP system. In 2024, the city ordered two Capstone C65 ICHP microturbines and a Vergent controller, doubling the facility’s renewable energy output while maintaining its commitment to cost-effective operations.
Leveraging a combination of federal tax benefits and a Department of Energy grant, the City was able to cover 90% of the project’s costs.
Hot Water
860,000 BTU/hr
Energy Savings
$80,000 per year
Yearly Output
1000+ MWh
Moving Parts
2
Power
130 kW

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