cfl energy savings adjustment factors for “specialty bulbs” regional technical forum february 2...
DESCRIPTION
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:TRANSCRIPT
CFL Energy Savings Adjustment Factors for “Specialty Bulbs”
Regional Technical ForumFebruary 2nd, 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
Energy Savings
per LampRemoval Takeback Storage (kWh/year)
Retail Sales 0% 0% 36% 24 Yes, May '09
Direct Installs 12% 5% 0% 32 Yes, June '09
NEEA Socket Count 0% 5% 0% 36 Yes, June '09
Savings De-Rating Factor
Installation Type
(weighted average, interior or exterior)
RTF Approved
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: www.greenelectricalsupply.com
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?
Energy Savings
per LampRemoval Takeback Storage (kWh/year)
Retail Sales (non-Specialty Only) 0% 0% 36% 24 Yes, May '09
Direct Installs (Any Energy Star Bulb) 12% 5% 0% 32 Yes, June '09
NEEA Socket Count (Any Energy Star Bulb) 0% 5% 0% 36 Yes, June '09
Retail Sales of "Specialty Bulbs" 12% 0% 18% 27 Not Yet
Savings De-Rating Factor
Installation Type
(weighted average, interior or exterior)
RTF Approved