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Thermal Break Shear Wall: A Case Study of Rigid Foam Insulation between Frame and Sheating
As part of our work on efficient homes, NEEA developed a case study on a Thermal Break Shear, an innovative wall assembly recently used in a zero-net-energy subdivision in Washington County, Oregon. This study demonstrates the opportunity for significant energy savings in a simple, low-cost assembly that offers additional benefits such as seismic tolerance while…
Residential|Residential Buildings -
Next Step Home Builder Focus Groups
On behalf of Northwest utilities, the Northwest Energy Efficiency Alliance (NEEA) launched its Next Step Home (NSH) pilot program to advance the adoption of energy-efficient building practices and technologies in residential new construction of single-family homes. NEEA is working with builders throughout the region to build to a higher performance level to evaluate costs, challenges,…
Residential|Residential Buildings -
Northwest Heat Pump Water Heater Initiative Market Progress Evaluation Report #1
Residential -
Pacific Northwest Residential Ventilation Effectiveness Study
This report provides data and conclusions about the actual performance of different types of ventilation systems as installed and operated in relatively airtight homes. Overall, this study found that total ventilation is not a determining factor in ventilation effectiveness. A key factor is the ventilation delivered to each occupied space. This is coupled with a…
Residential|Residential Buildings -
Combination Ductless Heat Pump & Heat Pump Water Heater Lab and Field Tests
This report summarizes the lab and field test findings for Mitsubishi’s prototype Ductless Heat Pump (DHP) Plus H2O product. This product combines a ductless heat pump with a heat pump water heater into a single, integrated product. Mitsubishi has teamed with a water heater partner for the water heater portion of the product. NEEA has…
Residential -
2014–2015 Northwest Residential Lighting Long-Term Market Tracking Study
The sections below provide a brief project history, an overview of the 2014-2015 Residential Lighting Long-Term Market Tracking Study, summary of conclusions, and recommendations.
Residential -
Laboratory Assessment of Stiebel-Eltron Accelera 220 E Heat Pump Water Heater
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc. and Cascade Engineering Services, Inc. to conduct a laboratory assessment of the Stiebel-Eltron Accelera 220 E heat pump water heater (HPWH) for northern climate installations. Cascade Engineering evaluated the Accelera 220 E using a testing plan developed by Ecotope to assess HPWH performance.
Residential -
Northwest Ductless Heat Pump Initiative: Market Progress Evaluation Report #4
This report is the fourth Market Progress Evaluation Report (MPER) of the Northwest Energy Efficiency Alliance’s (NEEA’s) NW Ductless Heat Pump Project (Initiative). NEEA launched the Initiative in 2008 as a pilot that set out to demonstrate that ductless heat pumps (DHPs) were a viable technology to displace electric resistance heat in existing homes. The…
Residential -
Television Initiative Report No. 4
The Northwest Energy Efficiency Alliance (NEEA) is an alliance of more than 140 Northwest utilities and energy efficiency organizations working to accelerate the innovation and adoption of energy-efficient products, services, and practices in the Northwest.
Consumer Products|Residential -
Residential Inverter-Driven Heat Pump Technical and Market Assessment
In an effort to transform the residential space heating market in the Northwest, the Northwest Energy Efficiency Alliance (NEEA) has focused on promoting inverter-driven ductless heat pumps (DHPs) as a promising technology for displacing electric resistance heat. The market for this technology is evolving rapidly. The key objectives of this study are to identify relevant…
Residential