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UES Measure Request: Heat Pump Measures for New Construction. RTF Decision on course of action Regional Technical Forum February 14, 2012. Background. BPA requested the RTF develop heat pump measures applicable to New Construction Measures Heat Pump Upgrades (SF & MH)
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UES Measure Request:Heat Pump Measures for New Construction RTF Decision on course of action Regional Technical Forum February 14, 2012
Background • BPA requested the RTF develop heat pump measures applicable to New Construction • Measures • Heat Pump Upgrades (SF & MH) • PTCS Commissioning, Controls, and Sizing (SF & MH) • Request is to have measures available in time for BPA’s April Implementation Manual • Historical Program Volume (BPA) • “Post 1992” HP Upgrade Measures: 460 claims/year for last 5 years • Includes some new construction and some existing homes • New Construction PTCS Commissioning and Controls: 18 claims total in last 4 years • Current RTF measures for Existing Construction …
(Measures’ Current Status: “Under Review for compliance w/RTF Guidelines”)
Complicating Factors to Consider • Current RTF Measures for Existing Construction • Will be reviewed for compliance with the guidelines this year • SBW is currently reviewing the Single Family measures • Are slated for re-analysis using SEEM94
Decision • Staff Recommendation: Temporarily revise the current measure descriptions to include/allow “New Construction”; put together new measures for New Construction after SBW review and when updating all heat pump and Wx measures with SEEM94 • Savings somewhat over-estimated (?) • Heating load for a new house built to code would be lower than a “fully weatherized” existing house (walls), resulting in lower savings for new construction • But … Since new houses are larger on average than existing houses, internal gains play a smaller role in heating new houses, somewhat offsetting the above effect. • Keeps RTF effort in line with savings potential (both very low), while meeting BPA’s request • Other Options…Discussion