Out-Of-Compliance Grocery UES Measure Recommendations

Out-Of-Compliance Grocery UES Measure Recommendations Regional Technical Forum March 18, 2014

Presentation Outline • Background • Measure Overview • Staff Highlighted Areas • UES Workbook • Measure Descriptions • Measure Analysis and Input Details • Savings, Cost, and Cost Effectiveness • RTF Staff Recommendation • Proposed Decision

Background • Multiple Grocery measures found Out-of-Compliance • Subsequent analysis determined remaining potential small • Extended sunset date at November 2013 meeting • Staff to develop plan to bring back into compliance • Grocery measures in question: • ECMs for Walk-ins • Walk-in Evaporator Fan ECMotor Controllers • Compressor Head Fan Motor Retrofit to ECM • Floating Head Pressure Controls for Single Compressor Systems • Autoclosers • Door Gasket Replacement • Display Case LEDs (Open Cases) • Strip Curtains

Measure Overview • Plan to go through each measure individually • Seeking decision on methodology of 3 measures presented • Need to be updated with finalized EER results • If 15% lower EER value, then ~5% increase in savings • Staff working with PECI to obtain updates to other five grocery measures • Will request sunset extension on measures not presented today

ECMs for Walk-ins

Measure Overview • What does it do? • Replaces existing Shaded Pole motor with a more efficient Electrically Commutated Motor (ECM) • Savings occur from: • Direct motor wattage reduction • Waste heat reduction to refrigeration system

Recommendation Memo Items

Staff Highlighted Areas • Weighting of motors into one category have large variation for smaller sized motors • Measure is retrofit, therefore a pre-conditions baseline • Unsure of current market practice for motor replacement

Motor Weighting • PECI provided motor weights for 3 motor classes: 1/20HP, 1/15HP, and 16-23 Watt • Difference in weighted average for small motors Wtd. Average

Motor Weighting • Ok to leave as 1 measure based on PECI weighting of expected program conditions? • Split into two measures? • One for 1/15 & 1/20 • One for 16-23 Watt • Staff Recommendation: Split into two measures to account for savings variation

Pre-conditions • RUL needs to be estimated for pre-conditions • DEER provides estimate of 5 years • What is current practice at end of RUL? • If shaded pole motors only, then RUL=EUL • If combination of shaded pole and ECM, then: • Full savings and cost assigned during RUL period • Reduced savings and cost assigned for remaining EUL period • Do we want to do this for small savers? • Staff Recommendation: Assume current practice is 100% Shaded Pole and assign savings accordingly

Measure Descriptions • Go to the following sections in the Summary tab in the proposed measure workbook: • Measure Properties • Measure Identifiers

Measure Analysis and Inputs Details • Go to the following sections in the Summarytab in the proposed measure workbook: • Constant Parameters • Energy Savings Estimation Method, Parameters and Data Sources • Measure Incremental Costs and Benefits • Measure Lifetime

Savings, Cost, & Cost Effectiveness • Go to the following sections in the Presentation tab in the proposed measure workbook: • Measure savings • Measure costs • Measure TRC B/C ratios

RTF Staff Recommendation • Approve the ‘ECMs for Walk-ins’ UES measure as a “Small Saver” • Update EER values with finalized numbers once analysis is complete (~4% increase in savings) • Split measure into two identifiers • Assume current practice = all Shaded Pole • Set the measure status to “Active” • Set the sunset date to March, 2019

Proposed Decision “I _______________ move that the RTF: Pick one of each: • [Split into two measures / weight into one measure]; and • Assume current practice is [all Shaded Pole / x.x % is ECM]; and • Approve the ‘ECM for Walk-ins’ measure as a “Small Saver” UES; • Set the measure status to ‘Active;’ and • Set the sunset date to March, 2019.”

ECMotor Controller for Evaporator Fans on Walk-ins

Measure Overview • What does it do? • Installs a motor controller on Evap. systems already equipped with ECMs • Provides 2-speed operation of fans • High when cooling; low when not • Savings occur from: • Direct motor wattage reduction due to full speed runtime hours reduction • Waste heat reduction to refrigeration system

Staff Highlighted Areas • None

RTF Staff Recommendation • Approve the ‘ECMotor Controller for Evaporator Fans on Walk-ins’ UES measure as a “Small Saver” • Update EER values with finalized numbers once analysis is complete (~6% increase in savings) • Set the measure status to “Active” • Set the sunset date to March, 2019

Proposed Decision “I _______________ move that the RTF: • Approve the ‘ECMotor Controller for Evaporator Fans’ measure as a “Small Saver” UES; • Set the measure status to ‘Active;’ and • Set the sunset date to March, 2019.”

Compressor Head Fan Motor Retrofit to ECM

Measure Overview • What does it do? • Replaces existing Shaded Pole motor with a more efficient Electrically Commutated Motor (ECM) on a compressor head fan • Savings occur from: • Direct motor wattage reduction

Staff Highlighted Areas • None

RTF Staff Recommendation • Approve the ‘Compressor Head Fan Motor Retrofit to ECM’ UES measure as a “Small Saver” • Set the measure status to “Active” • Set the sunset date to March, 2019

Proposed Decision “I _______________ move that the RTF: • Approve the ‘Compressor Head Fan Motor Retrofit to ECM’ measure as a “Small Saver” UES; • Set the measure status to ‘Active;’ and • Set the sunset date to March, 2019.”

Other OOC grocery measures

RTF Staff Recommendation • Staff needs more time to incorporate changes and data from PECI • Request 3 month sunset extension for the following measures:

Proposed Decision “I _________ move that the RTF extend the sunset dates for the following measures shown below.”

Out-Of-Compliance Grocery UES Measure Recommendations