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].

Modified Energy Factor (MEF)

Modified Energy Factor, or MEF, is a calculation used to compare the relative efficiency of different clothes washers. The higher the value, the more efficient the clothes washer. To find your clothes washer's MEF, go to the ENERGY STAR® website.

Didn't find your answer? Please contact us.