Welcome to the California Energy Commission

Process Energy - Water/Wastewater Efficiency

Wastewater Treatment

A multitude of energy efficient equipment, technologies and operating strategies are available to help you take a bite out of your energy costs in water and wastewater facilities. Explore the categories below to see a detailed description of each technology and how it can save you money.

Variable frequency Drives

  • What's the difference between electronic and mechanical variable speed devices?
  • How can variable speed drives save you money and improve your process control of time-of-use rate schedules by reducing or shifting your electrical load?
Energy-Efficient Motors
  • What's the difference compared to standard efficiency motors?
  • Should you rewind or replace?
Heating, Cooling, Ventilation Improvements
  • What strategies will help you achieve comfort for less?
Lighting Improvements
  • How can you improve the efficiency of your indoor and outdoor lighting?
Electrical Load Management Strategies
  • How can you take advantage of time-of-use rate schedules by reducing or shifting your electrical load?
Cogeneration Optimization
  • How can you fine-tune your cogeneration system to get the highest return on your investment?
Fuel Cells
  • Can putting and excess digester-gas to work reduce electric utility bills?

The following case studies demonstrate the success of using these technologies: