Contract 11-3: Combined Heat & Power

The Combined Heat and Power (CHP) unit at the District has been operating since January of 2020. This 1,450 kilowatt generator burns natural gas. It currently supplies approximately 2/3 of the District’s electrical power at the plant.

Combined Heat & Power Unit © SESD
Combined Heat & Power Unit © SESD

We now recover heat from the motor and engine exhaust and are using that heat to reduce our boiler use. During the summer months the CHP generates enough heat to operate all three odor control coils!

Diagram of SESD CHP Unit
Diagram of SESD CHP Unit
Construction completed in 2020 © SESD
Construction completed in 2020 © SESD

The CHP system operates 24 hours a day, all year long. It is estimated that the CHP unit will save the District more than $600,000 per year in energy costs. This savings will be used to increase the District’s annual capital improvement program and fund additional capital upgrade projects.