Description Northwest Energy Efficiency Alliance (NEEA)'s sixth Market Progress Evaluation Report (MPER) for their Heat Pump Water Heater (HPWH) program. Publication Info Source Type Website Permission Date 2023-04-12 Website Link Northwest Heat Pump Water Heater Market Progress Evaluation Report #6 Publishing Organization Northwest Energy Efficiency Alliance (NEEA) Publish Date / Date Accessed 2022-05-09