1 Analysis of Two-Tiered Deemed Savings Values for Energy Star Clothes Washers February 10, 2004

2 Issue Summary Northwest Energy Efficiency Alliance is deploying an Energy Star marketing program that provides “two- tiered” incentives –MEF < 1.6 –MEF =>1.6 Existing Deemed Savings Analysis provides “single tier” Existing deemed savings calculator provides model specific savings

3 Alliance Request RTF Consider Establishing “Two Tiered” Deemed Values Available Data –Market sales data (brand & model) from last years “Double Your Savings” campaign –Energy Star data on MEF and Water Factors Approach –Estimate “sales weighted” MEF and Water Factors for each tier –Use each tier’s values as basis for savings (water and electric)

4 Distribution of MEF from “Double Your Savings” Rebate Reports

5 Distribution of WF from “Double Your Savings” Rebate Reports

Summary Statistics on MEF StatisticALLMEF MEF => 1.60 Number of Washers 12,978 5,442 7,536 Simple Average Median Mode Weighted Mean

Summary Statistics on WF Statistic ALLMEF 1.26 – 1.59 MEF => 1.60 Number of Washers 12,894 5,366 7,528 Mean Median Mode Weighted Average

Proposed Deemed Savings by MEF/WF Tier Measure Energy Star MEFkWh/SavingsCredit Existing Deemed Value $155 FY04 $102 FY05 Tier $134 FY04 $81 FY05 Tier $173 FY04 $120 FY05