CFL Energy Savings Adjustment Factors for “Specialty Bulbs” Regional Technical Forum February 2...
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Transcript of CFL Energy Savings Adjustment Factors for “Specialty Bulbs” Regional Technical Forum February 2...
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