CFL Energy Savings Adjustment Factors for “Specialty Bulbs” Regional Technical Forum February 2 nd, 2010

Current RTF Savings and Assumptions Data Sources: Removal Rate – Professional judgment (c. 2000) Takeback Rate – Professional judgment (c. 2000) Storage Rate – PSE CFL survey completed in 2007

BPA’s Question to the RTF: What about “Specialty Bulbs – Should the factors be different? BPA’s Implementation Manual (effective April 2010) : – Specialty CFLs are defined to include the following screw-base bulbs: candelabras, G-lamps (globe), R-lamps & PARlamps (reflectors), torpedoes, dimmable, and three-way Pictures from:

Discussion Potential Reasons “Specialty Bulbs” Might Deserve Different Adjustment Factors – Less likely to fit the application since specialty CFL’s are different shape than their incandescent counterparts Higher (removal rate) – More likely the consumer will disapprove of the specialty bulb since they’re less mature than “standard” CFL’s Higher removal rate – Less likely to be bought in bulk than standard CFL’s since there are less applicable sockets in the house Lower storage rate – Other Reasons? Counterarguments? Additional Questions: – Different pre- and post-wattage assumptions for specialties? – Different hours of use for specialties? – Different incremental cost for specialty bulbs? – Data?

Proposal No difference in savings for specialty bulbs through direct installs or NEEA socket counts Retail sales of specialty bulbs – Use 12% removal rate – No Takeback – Half the storage rate of non-specialty retail sales Approval? More Analysis? Use Existing Values?