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City of Billings receives $90,000 energy efficiency incentive from NorthWestern Energy for state-of-the-art energy improvements at wastewater treatment plant

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Over the past 3 years, Billings upgraded their wastewater treatment process to produce even higher quality water that returns to the Yellowstone River. Part of this $75 million upgrade included constructing a state-of-the-art aeration system that maximizes energy efficiency. Aeration is the most energy intensive process required in wastewater treatment, accounting for approximately half of the electrical load used.

During the last 10 years, the City of Billings implemented 62 energy efficiency projects;
qualifying for $967,050 in energy efficiency incentives from NorthWestern Energy.
These projects resulted in an estimated 5.82 million kWhs saved per year, equating to
about $455,000 in annual electric cost savings.

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