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Commercial Clothes Washers. Review of Existing Deemed Measures August 4 th , 2009 Regional Technical Forum. Background. 2007: Deemed savings last updated to reflect Minimum Federal Standard MEF of 1.26 or greater Water Factor of 9.5 gallons/cycle or less Energy Star Standard
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Commercial Clothes Washers Review of Existing Deemed Measures August 4th, 2009 Regional Technical Forum
Background • 2007: Deemed savings last updated to reflect • Minimum Federal Standard • MEF of 1.26 or greater • Water Factor of 9.5 gallons/cycle or less • Energy Star Standard • MEF of 1.72 or greater • Water Factor of 8.0 gallons/cycle or less. • 43 Claims made in CRC during 2007 & 2008 • Current PTR Measure List: • New Energy Star Standard • Effective July 2009 • MEF of 1.8 or greater • Water Factor of 7.5 gal/cycle or less • Effective Jan 2011 • MEF of 2.0 or greater • Water Factor of 6.0 gal/cycle or less
Setting the Baseline and Upgrade Efficiency Levelsfor Savings Estimates • Issues: • Market Saturation Data isn’t available • Use of CEC list directly will skew market saturation, since some units have multiple model names, which may or may not correspond to higher market saturation • Proposed Solution: • Sort CEC list (last updated March 2009) by unique models based on same capacity, MEF, WF, and RMC. (Independent of model name or manufacturer). Use the sorted list as a proxy for market saturation; each model is assumed to have equal weighting in the market. • Baseline • Average of All Models on the List • Energy Star • Average of units that meet Energy Star Standards
Savings Calculations (Method is slightly different from the previous deemed savings calculators)
Other Key Assumptions • Disaggregated • Hot Water Use • Based on field data from PNNL (see graph) • Machine Energy Use • Based on field data from PNNL (see graph) • Dryer Energy Use • Uses Remaining Moisture Content with DOE/LBNL Calc Methodology from DOE standard setting process • Cycles Per Year = 2,190 • Based on 6 cycles/day • Sources: Lightwash / Equipoise 2004 (6), CEE (6), Coin Laundry Association (3 to 8) • Incremental Cost = $370 • Simple Average of • NOPR: $383; and • Weighted Average of Seattle Data: $356 • Previously, $154 • Based on simple averages of Seattle Data
Recommended Deemed Measures • Decision?