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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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