Slide 1 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Residential Appliance Measure Updates Danielle Gidding Bonneville Power Administration Ryan Firestone and Wayne Leonard Navigant Consulting June 29, 2010

Slide 2 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Purpose Update residential appliance measures to 6 th Plan supply curves: Dishwashers Clothes washers, single family Clothes washers, multi-family Refrigerators Freezers June 29 th RTF Meeting Methodology for all appliances Approval of updates to dishwashers and SF clothes washers August 3 rd RTF Meeting Approval of updates for MF clothes washers, refrigerators, and freezers

Slide 3 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Methodology Identify available measure datasets Define baseline as average performance of dataset sales weighted where possible Establish appropriate measure tiers Identify algorithms for translating performance metrics into energy and water usage. Determine energy and water savings, relative to updated baseline Normalize savings to account for differences in features across baseline and measure groups (e.g. tub volume, refrigerator volume). Present proposed savings, compare to current PTR savings and identify causes for change.

Slide 4 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Energy and Water Algorithms Primarily DOE, mostly as used in 6 th Plan (FY10) Analyses

Slide 5 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Datasets California Energy Commission Appliance Database Manufacturer reported performance metrics and date of submission QC: checked against CEE certification data where possible for accuracy CEC datasets used in 6 th Plan analysis, but more recent version of the database used for this analysis. Cleaning: remove duplicates (same manufacture and specs, different model #); incomplete records; and records older than the date that the current federal standard went into effect. Oregon Tax Credit 2007 data included in 6 th Plan analysis, and used for this analysis Sales volume, basic performance metrics, retail price

Slide 6 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Residential Clothes Washers – Single Family

Slide 7 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Background – SF Clothes Washers Last deemed savings update in August 2007 Current Federal Standard: MEF ≥ 1.26 Federal Standard, Jan. 1, 2011: MEF ≥ 1.26, WF ≤ 9.5 Current Energy Star Criteria: MEF ≥ 1.8, WF ≤ 7.5 Energy Star Criteria, Jan. 1, 2011: MEF ≥ 2.0, WF ≤ th Plan baseline assumption: MEF = 1.66, sales weighted average of Association of Home Appliance Manufacturers (AHAM) 2007 data. Clothes washers on the market since 2007 have dramatically higher MEFs. This proposal uses a baseline MEF of 1.9, the average MEF of residential clothes washers registered in the CEC Appliance Database from Jan. 1, 2007 to the present.

Slide 8 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Background – SF Clothes Washers

Slide 9 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Metrics Res. Clothes Washers (SF) Modified Energy Factor (MEF) [capacity] / [kWh machine + kWh DHW + kWh dryer ] Water Factor (WF) [capacity] / [gallons] Percent Moisture Remaining Capacity (ft 3 ) Other – Front vs. top loads, tub material (stainless steel / enamel / plastic), exterior color

Slide 10 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N MEF Distribution Res. Clothes Washers (SF) Dataset: CEC Appliance Database: registered products meeting current federal standard (MEF = 1.26) Records with same manufacturer and performance specification but different model numbers counted as one record.

Slide 11 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Performance Res. Clothes Washers (SF) Dataset: CEC Appliance Database Baseline: all residential washers added from January 1, 2007 to present Measure: Tiers by MEF eStar criteria, starting Jan = 2.0

Slide 12 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Incremental Cost Res. Clothes Washers (SF) Dataset: OR Tax Credit Database, 2007 Baseline has increased enough that incented models from 2007 can be used to determine current baseline costs. All costs normalized to 3.26 ft 3 tub volume to match baseline description. Baseline cost ($855) determined by linear cost vs. MEF fit.

Slide 13 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Baseline and Measure Characterization Res. Clothes Washers (SF) Electric, Gas and Any DWH measures Lifetime: 14 years (as in FY10 analysis and in current deemed measures). Non-energy benefit: $10.03/1000 gallons for water supply and waste water services. (6 th Plan value, from FY10 analysis). disaggregated into 5.29 kWh /1000 gallons (6 th Plan) $9.24/1000 gallons (preserves B/C ratio when kWh savings are included) Loadshape: ResWASH DHW Electric Fuel Share: 64% (6 th Plan assumption) Dryer Electric Fuel Share: 86% (6 th Plan assumption)

Slide 14 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Energy and Water Consumption Res. Clothes Washers (SF) All Electric: Energy (kWh per load) = [capacity] / [MEF] Water (gallons per load) = [capacity]*[WF] Gas DHW and/or Dryer: Disaggregate energy for machine, hot water, and dryer. Convert kWh loads to therms loads assuming typical efficiencies. [see next slides for details]

Slide 15 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Hot Water Consumption Res. Clothes Washers (SF) Interpolate % hot water by MEF based on DOE field tests. Set minimum hot water share to 10.5% Data source: “Technical Support Document: Energy Efficiency Program For Consumer Products And Commercial And Industrial Equipment: Residential Dishwashers, Dehumidifiers, And Cooking Products, And Commercial Clothes Washers”, Chapter 6. December U.S. DOE, Assistant Secretary Office of Energy Efficiency and Renewable Energy Building Technologies Program Appliances and Commercial Equipment Standards Washington, DC

Slide 16 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Dryer Energy Consumption Res. Clothes Washers (SF) Interpolate dryer energy per cycle as a function of remaining moisture content (RMC) based on DOE field tests. Data source: “Technical Support Document: Energy Efficiency Program For Consumer Products And Commercial And Industrial Equipment: Residential Dishwashers, Dehumidifiers, And Cooking Products, And Commercial Clothes Washers”, Chapter 6. December U.S. DOE, Assistant Secretary Office of Energy Efficiency and Renewable Energy Building Technologies Program Appliances and Commercial Equipment Standards Washington, DC Data for washer capacity of 2.8 ft 3

Slide 17 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Savings and Cost-Effectiveness – Electric DHW Res. Clothes Washers (SF)

Slide 18 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Savings and Cost-Effectiveness – Gas DHW Res. Clothes Washers (SF)

Slide 19 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Savings and Cost-Effectiveness – Any DHW Res. Clothes Washers (SF)

Slide 20 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Proposal Approve savings for residential clothes washers for MEF 2.2 and above.