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T12 to HPT8 Change-outs Small/Rural request for development

T12 to HPT8 Change-outs Small/Rural request for development. May 15, 2012. Purpose. Present savings methodology Cite sources used in development Staff recommendations on next steps. Measure Summary Sheet. Measure Summary Sheet. Measure Cost Summary. Baseline and Efficient Case wattages.

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T12 to HPT8 Change-outs Small/Rural request for development

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  1. T12 to HPT8 Change-outsSmall/Rural request for development May 15, 2012

  2. Purpose • Present savings methodology • Cite sources used in development • Staff recommendations on next steps

  3. Measure Summary Sheet

  4. Measure Summary Sheet

  5. Measure Cost Summary

  6. Baseline and Efficient Case wattages • Baseline wattage of T12 fixtures from ETO lighting calculator • HPT8 wattages of HPT8 fixtures from ETO lighting calculator • Weight BF combination by frequency of occurrence in ETO program

  7. Savings methodology • Baseline and target wattages from lighting calculator tool • Hours of use from KEMA and DOE studies applicable to kitchens • 2009 KEMA study – 2.5 Hrs/day for Single Family Kitchens • 2010 DOE study – 2.3 Hrs/day for Single Family Kitchens • De-rating for space heat interaction from 6th Power Plan (15%) • Multiply fixture delta watts by kitchen hours of use and de-rate to get savings kWh savings = [W(base) – W(target)]/1000 X HOU X 365 X (1-Space Interaction factor)

  8. If Small Saver, also need… • Estimate of regional potential • Distribution of linear fluorescent lamps in residential kitchens • Number of kitchens in region • Distribution of baseline fixture types in kitchen • e.g. 4’ T12 1-lamp vs. 4’ T12 4-lamp

  9. Next Steps for S/R subcommittee • Should this continue as down the small saver path? • Sufficient data appears to exist to estimate savings for 1-for-1 lamp change-outs • Two large end-use studies exist to predict number of hours per day, which is primary variable • DOE study information can likely estimate regional potential • Are certain change-out combinations preferred? • Comparison of regional lighting calculator baseline and target case wattages • Anything else missing?

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