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Prescriptive Duct Sealing

buffy-fletcher avatar
buffy-fletcher
9 diapositives · 219 Views · Oct 26, 2014

This presentation outlines a comprehensive proposal for the Prescriptive Duct Sealing measure presented to the Regional Technical Forum on August 20, 2013. Key components include an overview of the measure, an analysis of unit energy savings (UES), and a proposed research plan. We analyze current UES values from existing duct sealing measures and propose a calibrated engineering analysis method to ensure accuracy. RTF staff reviewed the research plan, providing recommendations to address uncertainties, culminating in a motion to approve the duct sealing measure.

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Prescriptive Duct Sealing
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  1. Prescriptive Duct Sealing Measure Proposal Presentation to the Regional Technical Forum August 20, 2013

  2. Presentation Outline • Measure Overview • UES Analysis and Results • Research Plan • RTF Staff Review and Guidance • Proposed Decision

  3. Measure Overview

  4. Measure Properties • Review the Measure Properties section on the “Summary” tab of the proposed measure workbook. • Planning Assumption: Measure properties & savings are equivalent to PTCS duct sealing.

  5. Unit Energy Savings • Current UES values taken from existing RTF PTCS SF and MH duct sealing measures • The current UES values are calculated using SEEM with inputs from PTCS test data • Values taken for each heating zone, average of heating systems • The current MH UES values include a 12% reduction in savings to account for measure implementations where no savings result. • The current SF UES values do not include this savings reduction factor. For this measure, the reduction factor is included in the new SF UES.

  6. Summary

  7. Research Plan • Proposed UES estimation method is Calibrated Engineering Analysis • As per Guidelines, billing analysis is not recommended to develop savings for UES measures with significant interactive effects. • Billing regression analysis provides percentage savings, that is a key input for the Calibrated Engineering Analysis. • Recommended method will comply with last-measure-in. • Pre/post analysis for both a treatment and control group. • Treatment group will be the first cohort of participants • Control group will be a later cohort • Use the same pre and post period for both groups

  8. RTF Staff Review and Guidance • RTF staff recommendation on research plan: • Research plan incorporates R&E Review Group feedback • Staff agrees with the plan but acknowledges the uncertainties associated with billing analysis • Estimates of expected confidence and precision based on CV observed in RBSA data. • RTF staff recommendation on the UES estimate: • Planning estimate reviewed by subcommittee. • Measure specifications reviewed and edited by subcommittee and staff • Staff recommends de-rating savings to account for lack of testing equipment-guided sealing (e.g. 25% less savings)

  9. RTF Proposed Motion: “I _________ move that the RTF approve the UES measure Prescriptive Duct Sealing to the Planning category with Active status and a sunset date of December 31, 2015.”