1. Experience you can trust. Statewide Single-Family Rebate Program Evaluation: Lighting CALMAC/MAESTRO Meeting San Francisco, CA July 26, 2006 Tami Rasmussen tami.rasmussen@kema.com

2. Overview of Presentation  Program background  Recent evaluation results that pertain to lighting – CFL Metering Study – Consumer and supplier lighting market characterization  2004-2005 program evaluation scope

3. Single-Family Rebate Program: Lighting component background  Statewide program: PG&G, SDG&E, So Cal Gas, SCE  1998 market transformation initiative - California Residential Lighting and Appliance Program  2001 resource acquisition focus: over 8 million CFL product incentives  2002-2003 Statewide Crosscutting Residential Lighting Program – 4 million CFL product incentives per year

4. Single-Family Rebate Program: Lighting component background  2004-2005 Statewide Single-Family Retrofit Program – 10 million CFL product incentives per year (procurement funding accounts for half) – 92% of energy savings goals met through lighting measures

5. CFL Metering Study – Objective and Approach  Update CFL energy savings parameters  Monitor interior fixtures with CFLs to obtain time-of- use data – Sample frame: CA residents with CFLs installed, 7 regional strata from San Diego to Chico – Sample size: 375 homes, 891 interior fixtures, 983 CFLs – Monitoring: on/off time and date stamp light meters; 6-12 months of metering from June 2003 – October 2004

6. CFL Metering Study – Results  Average hours of use: 2.3 hours per day for interior fixtures  No different from standard lighting usage (based on 1997 HMG study)  Drivers of variation: – Room type – Fixture and control type – CFL vintage  Usage peaks between 8 and 9pm; less than 10% of CFLs operate during summer weekday afternoons

7. Lighting Market Characterization – Objectives and Approach  2002 Statewide Crosscutting Residential Lighting Program evaluation  Update prior consumer and supplier lighting market characterizations – 1000 residential population surveys (split evenly between CFL purchaser/non-purchaser) conducted in June 2003 – 50 market actor interviews conducted in June 2003

8. Lighting Market Characterization – Key Consumer Findings

9. Lighting Market Characterization – Key Supplier Findings  Prices have declined – wholesale below $1, retail between $2-$3 (down from $6 in 2001) – most manufacturers expect prices to decline further  Product diversity has increased – more manufacturers in the market; more designs, shapes and sizes of CFLs; elimination of objectionable features such as oversized bulbs, poor light quality, color rendering

10. Lighting Market Characterization – Key Supplier Findings, continued  Most products are ENERGY STAR certified  Expectations for increased sales in the future due to declining price and expanding diversity

11. 2004-2005 Single-Family Program Evaluation Scope: Lighting  Consumer CFL survey (CFL purchaser and non- purchasers)  Interviews with lighting retailers, manufacturers and stakeholders  Process evaluation  Gross impact assessment (on-site surveys with CFL purchasers from 2004-2005)  CFL Net-to-gross assessment (TBD – may include a combination of approaches)

12. Experience you can trust. Full reports available at www.calmac.org CFL Metering Study: www.calmac.org/publications/ 2005_Res_CFL_Metering_Study_Final_Report.pdf Evaluation of the 2002 Statewide Crosscutting Residential Lighting Program: www.calmac.org/publications/ 2002_Statewide_Res_Lighting_Final_Report.pdf