How Chattanooga reduced its $300k WWTP electric bill

The Moccasin Bend Wastewater Treatment Plant in Chattanooga, Tennessee has achieved energy efficiency goals most plants in the nation would consider milestones. By decommissioning old processes, upgrading energy inefficient ones and installing a solar farm, its path to energy reduction (and even giving credits back to the energy grid) is in sight.

Additional Resources

• EPA awards $186M WIFIA loan to Chattanooga: https://www.wwdmag.com/21438880
• DOE recognizes Chattanooga Mocassin Bend WWTP: https://www.energy.gov/eere/articles/doe-recognizes-better-buildings-partner-city-chattanooga-tn-energy-efficiency

Time Stamps

• Introduction | 0:00
• Community served by Moccasin Bend WWTP | 0:38
• Mocassin Bend WWTP treatment process | 2:43
• Back-up solar energy installation | 4:00
• Decommissioning old filter press building | 5:50
• Improving 70 mgd equalization basin aeration efficiency | 6:35
• Solar energy resiliency and energy savings | 8:00
• Biogas capture in the future | 9:05
• Housekeeping | 10:57

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