Important! Pacific Power's planned changes to the energy efficiency program will become effective January 1, 2019. Changes include an increase to the heat pump clothes dryer incentive and other changes to update qualifications to align with market conditions. For questions or additional clarification, please email [email protected].

Energy Factor (EF)

Energy Factor, or EF, is the energy performance metric used for electric water heaters. The higher the EF, the more efficient the electric water heater. To look up your electric water heater’s EF, visit the ENERGY STAR® website.

Didn't find your answer? Please contact us.