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End-Use Load Research Home Energy Metering Study – Final Report
This is the final report for the residential End-Use Load Research (EULR) project Home Energy Metering Study (HEMS), conducted by Evergreen Economics. HEMS collected one-minute, circuit-level energy use data from more than 400 homes across the Northwest between 2018 and 2026, resulting in a dataset of more than 14 billion data points. This report examined…
Residential -
Heat Pump Water Heater Market Progress Evaluation Report #8
The Northwest Energy Efficiency Alliance (NEEA) contracted with NMR Group, Inc. to conduct the eighth Market Progress Report (MPER) for its Heat Pump Water Heater (HPWH) program. The report finds that the program has contributed greatly to setting the groundwork for ongoing and widespread HPWH adoption. Between 2021 and 2024, HPWH market share in the…
Residential -
Q1 2026 RETAC Meeting Notes
The Regional Emerging Technology Advisory Committee (RETAC) held their first quarterly meeting of 2026 on March 11th. Topics included an overview and update on the dairy heat pump water heater pilot project by Bonneville Power Administration (BPA), as well as an overview from Pacific Northwest National Laboratory (PNNL). Members also held a round robin discussion…
Commercial + Industrial|Residential -
Q1 2026 RETAC Agenda Packet
The Regional Emerging Technology Advisory Committee (RETAC) will hold their first quarterly meeting of 2026 on March 11th. Topics will include an overview and update on the dairy heat pump water heater pilot project by Bonneville Power Administration (BPA), as well as an overview from Pacific Northwest National Laboratory (PNNL). Members will also have a…
Commercial + Industrial|Residential -
AWHS Residential Chapter Revision
NEEA welcomes additional feedback on this draft revision of the residential AWHS through August 31, 2026.
Residential -
Commercial HPWH Product Assessment Datasheet (PADS)
For commercial heat pump water heaters (HPWH) to be considered for inclusion on the Qualified Products List, HPWH product vendors must complete and submit a Product Assessment Datasheet (PADS). The PADS outlines compliance with the requirements within NEEA’s “Advanced Water Heating Specification.”
Commercial + Industrial -
Navien Dual-Fuel Residential Heat Pump Water Heater
Recorded November 12, 2025 – Navien is preparing to launch a dual-fuel residential heat pump water heater that includes an efficient electric heat pump and an efficient gas burner. This combination will offer high efficiency, fuel flexibility, and significant customer benefits. In this special session product council, Navien shared details of the product, their test…
Residential -
Conformance & Compliance: Enabling Grid-Responsive Heat Pump Water Heaters
Recorded on October 28, 2025 – As part of NEEA’s End-Use Load Flexibility work, NEEA contracted with Portland State University to test residential heat pump water heaters and determine how they respond when receiving CTA-2045-B signals. The results of this research uncover whether the water heaters meet the messaging requirements of CTA-2045-B and how the…