Important! Pacific Power's planned changes to the energy efficiency program became 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].

Heating Seasonal Performance Factor (HSPF)

Heating Seasonal Performance Factor, is an equipment efficiency rating. HSPF is a measure of a heat pump's energy efficiency over one heating season. It represents the total heating output of a heat pump (including supplementary back-up electric heat) during the normal heating season.

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