Pump testing and variable frequency drives

Description: Pump Testing – Eastern Municipal Water District (EMWD) in Riverside County, CA works with Southern California Edison (SCE) to regularly test the performance of its pumps. Testing ensures they are operating efficiently and reduces energy use.

EMWD has been participating in SCE’s pump test program for more than 15 years. Savings of greater than 10.4 million kilowatt-hours over more than seven years have been achieved; SCE provided nearly $850,000 in incentives to offset equipment and facility upgrade costs.

Additionally, EMWD has invested in Variable Frequency Drives (VFDs) – replacing or upgrading equipment with VFDs allows for continuous matching of motor speed to load requirements for pumps, thus reducing energy use.

Goal: Pump testing and variable frequency drives to increase energy efficiency in water agency operations

Measurement: Kilowatt-hours (varies per pump)

Time to Implement:


EMWD – Energy Management Success Story

Pumped and Primed to Save Energy (SCE)

Additional Information:

Suburban Water Systems Energy Management Success Story

Get Pumped – Maximizing Pump Energy Efficiency

Strategies for Saving Energy at Public Water Systems

Contact Info:

Jeff Wall
Assistant General Manager, Operations and Maintenance
Eastern Municipal Water District
(951) 928-6255

Sectors(s) Water
Location(s) ,
Date First Adopted N/A
Last Updated February 22, 2019
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