Review of Market Share Forecast and Key Assumptions for Efficient Rooftop Units

The Northwest Energy Efficiency Alliance (NEEA) contracted with Cadmus Group for an independent review of the Efficient Rooftop Unit (RTU) program’s approach to developing a naturally occurring baseline market share forecast for Efficient RTUs. For the study, Cadmus Group reviewed NEEA documents, analytic code, and calculations, and then provided feedback and recommendations on NEEA’s naturally occurring baseline market share forecast and other key modeling assumptions.

Cadmus completed the review between June and July 2022 and provided several recommendations, including suggestions for additional data sources, minor revisions to calculations, and ongoing analysis of Efficient RTU adoption by tier and pathway. NEEA’s Efficient RTU program team is using these and other study findings to update its forecasts and methodologies for estimating adoption, energy savings, costs, and more.

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