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  • 2025 CBSA Webinar #7 Slides

    On September 10, 2026, NEEA hosted the final webinar in the 2025 Commercial Building Stock Assessment (CBSA) series. This webinar presented key findings and trends from the final CBSA report and provided an overview of the final dataset and supporting documentation. View the webinar presentation slides using the first link below. To explore the final results of the 2025 CBSA, including the dataset and related…

    Commercial + Industrial
  • Assessment of Regulatory and Legislative Policies Impacting the Adoption of Dual-Fuel Equipment in the Northwest

    As a dual-fuel alliance, the Northwest Energy Efficiency Alliance (NEEA) is uniquely positioned to identify solutions that leverage both the natural gas and electric systems to deliver efficient, affordable and reliable energy for Northwest customers. To better understand the policies shaping adoption of dual-fuel technologies, NEEA engaged Potential Energy NW to assess the regulatory and…

    Commercial + Industrial|Natural Gas|Residential
  • 2025 CBSA Data Dictionary

    The Data Dictionary provides definitions, explanations, and levels of tables, variables, and acronyms found in the 2025 CBSA data files. < Back to all Commercial Building Stock Assessment Resources

    Commercial + Industrial
  • 2025 CBSA Final Report

    The 2025 Commercial Building Stock Assessment provides critical data to inform regional energy savings potential, load flexibility and forecasting.

    Commercial + Industrial
  • 2025 CBSA Data Files

    This data is from NEEA’s fifth Commercial Building Stock Assessment, representing data collected over a nine-month period beginning in August 2024. It includes a representative sample of commercial buildings gathered across the Northwest region. Whenever feasible, data was collected in a similar manner as the previous assessment to ensure continuity and comparability between the studies.…

    Commercial + Industrial
  • 2025 CBSA User Guide

    The 2025 CBSA User Guide provides instructions for working with the 2025 Commercial Building Stock Assessment dataset, including information on database structure, building and equipment data, sampling and weighting methods, statistical analysis, and examples of code for generating reliable estimates. < Back to all Commercial Building Stock Assessment Resources

    Commercial + Industrial
  • 2025 CBSA Appendix

    The 2025 CBSA Appendix serves as a technical companion to the study, documenting the methods, assumptions, data collection processes, and supporting materials used to develop and interpret the CBSA results. < Back to all Commercial Building Stock Assessment Resources

    Commercial + Industrial
  • Dual-Fuel Hybrid Residential Water Heater – Technical and Laboratory Evaluation

    This report is currently under revision and is temporarily unavailable while updates are underway. The updated version will be made available on this page as soon as it is finalized. For questions or additional information, please contact us. The Northwest Energy Efficiency Alliance (NEEA) co-funded a laboratory study conducted by GTI Energy to evaluate the…

    Natural Gas|Residential
  • Repeatability, Testing, and Rating of HRV and ERV Technologies using CSA SPE-18:24

    Sponsored by the Northwest Energy Efficiency Alliance (NEEA) and conducted by Purdue University, this study evaluated the new CSA SPE-18:24 testing standard for Heat Recovery Ventilators (HRVs) and Energy Recovery Ventilators (ERVs) by testing four commercial products representing major HRV/ERV technologies. The objectives were to assess test repeatability, develop seasonal performance models, evaluate leakage testing…

    Commercial + Industrial
  • Dual-Fuel Domestic Hot Water Feasibility Study

    The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope to conduct a feasibility study of domestic hot water systems that integrate commercial electric heat pump water heaters and natural gas water heaters, primarily in multifamily buildings. The study examined the technical feasibility, gas savings potential, market opportunity, design considerations, and regulatory requirements associated with these dual-fuel systems. …

    Commercial + Industrial|Natural Gas

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