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Variable Refrigerant Flow ASRAC Working Group Evaluation
The Northwest Energy Efficiency Alliance (NEEA) contracted with TRC Engineers, Inc. (TRC) to conduct an independent evaluation of the Appliance Standards and Rulemaking Advisory Committee (ASRAC) Working Group on Variable Refrigerant Flow (VRF) system standards and test procedures. The Working Group was created by the U.S. Department of Energy (U.S. DOE) to provide a forum…
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2015 Washington State Energy Code Energy Savings Analysis – Commercial Provisions
The Northwest Energy Efficiency Alliance (NEEA) contracted Mike D. Kennedy, Inc. to conduct the 2015 Washington State Energy Code Savings (WSEC 2015) analysis. The WSEC 2015 replaced the previous 2012 Washington Commercial Energy Code (WSEC 2012). It was developed by the Washington State Building Code Council and adopted statewide for commercial construction permitted as of…
Commercial + Industrial -
Oregon Residential Specialty Code: 2005 Baseline and Code Roadmap to Achieve the 2030 Goal
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc. to conduct the Oregon Residential Specialty Code (ORSC) Energy Savings analysis in support of the new Executive Order 20-04 (EO-20-04). EO-20-40 directs the Oregon Building Codes Division (BCD) to adopt building codes for new residential construction that reduce regulated annual site energy consumption by 60%…
Residential -
Maximizing Mini-Split Performance Report
The Northwest Energy Efficiency Alliance (NEEA) contracted with Sustainabilist to review and document ductless heat pump (DHPs or mini-split heat pumps) research and evaluations conducted over the past 15 years. The report explores why utility programs are not achieving the level of savings that were achieved in pilot programs and field tests and presents a…
Residential -
Investigation of Airtightness and Ventilation Interactions in New Multifamily Buildings – Phase III
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc. to determine the negative impact that levels of compartmentalization, the measure of tightness of total envelope of an individual apartment including interior and exterior walls, could have on the performance of exhaust appliances. The study identifies the total static pressure needed by modern exhaust fans,…
Residential -
Investigation of Airtightness and Ventilation Interactions in New Multifamily Buildings – Phase II
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc. to examine the effects of increased envelope airtightness (a measure of air infiltration through building components such as walls, windows, doors, ceilings, and floors) on the performance of multifamily buildings. Driven by recent Energy Code changes in Washington State, this study seeks to determine the…
Residential -
Combi System Field Study
The Northwest Energy Efficiency Alliance (NEEA) contracted with Energy 350 and ILLUME Advising, LLC to conduct field testing to demonstrate performance of combi systems in cold northwest climates and identify potential barriers to market adoption. According to results from this field study, combi systems, also known as combination water and space heating systems, save more…
Natural Gas|Residential -
2018 Washington Residential Code Energy Savings Analysis
The Northwest Energy Efficiency Alliance (NEEA) contracted Ecotope, Inc to estimate the energy savings of the 2018 Washington State Energy Code residential provisions (WSEC-R) compared to the 2015 and 2006 WSEC-R codes, as well as the 2018 International Energy Conservation Code (IECC). The 2018 WSEC-R code was developed by Washington State Building Code Council and…
Residential -
Commercial Pre-Rinse Spray Valves Standard Evaluation
The Northwest Energy Efficiency Alliance (NEEA) contracted with TRC Engineers, Inc. to evaluate NEEA’s participation in the U.S. Department of Energy’s Commercial Pre-rinse Spray Valve (CPSV) standard rulemaking process that concluded in 2016. The Final Rule that amended efficiency standards for spray valves required compliance by January 2019. Conducted in the third and fourth quarters…
Commercial + Industrial -
Laboratory Assessment of Rheem Generation 5 Series Heat Pump Water Heaters
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc., Cascade Engineering Services, Inc. and Larson Energy Research to conduct a laboratory assessment of Rheem’s next generation (Generation 5 or “Gen5”) heat pump water heaters (HPWH). The water heater series consists of two distinct lines: Premium/Plus and Builder, each aimed at different market segments. Each line includes…
Residential