Standard Information Workbook (SIW)

Update Proposal

Regional Technical ForumMay 13, 2014

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Today’s Agenda

• SIW Overview• Staff Highlighted Areas• Summary of Updates• Staff Recommendation• Proposed Decision

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What is the SIW?• A centralized data resource containing regionally

representative costs and non-energy benefit data that are common across multiple measures

• Data are recorded and documented in the SIW (an Excel Workbook), which is available on the RTF website

• Provides automatic conversion from data-year dollars to base-year dollars

• Provides a consistent platform for cost data and analysis

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Staff Highlighted Areas• None

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Summary of Updates• Updated the following sections of the SIW:– GDP price deflators

– Residential lighting costs

• Added the following new sections:– Wood fuel credit ($ value of wood savings)

– Residential HVAC interaction factors

– EER values (for refrigeration systems)

– Residential water heater recovery efficiencies

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GDP Price Deflators

• Used for normalizing costs to ‘same year’ dollars

• 2006$ used in ProCost analyses• Current SIW (v1.5) deflators stop at 2012• Staff updated deflators to include 2013 and

2014 (Q1)

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Residential Lighting Costs

• Current SIW contains residential CFL costs only• Last month’s CFL and LED measure update

used updated CFL costs, in addition to LED, incandescent and halogen costs

• Staff updated SIW to include all res lighting technology costs

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Wood Fuel Credit

• At its September 2013 meeting, the RTF voted to value wood/biomass savings at the average retail rate of electricity

• Staff used latest EIA data to compute regionally-weighted average electric rate– $0.09/kWh, 2012$

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Residential HVAC Interaction Factors

• Methodology and analysis from 6th Plan supply curve work is used

• Current CFL and LED measure workbook makes use of these factors

• Staff added these res HVAC interaction factors to SIW– Also cleaned up and organized analysis to make

the derivation more transparent

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EER Values

• EER analysis presented to the RTF at March 2013 meeting

• EER analysis was updated since March meeting per RTF’s request– PECI re-ran the 8760 simulation analysis using

evaporator loads instead of condenser loads to determine EER

– Revised analysis sent to grocery subcommittee for approval

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EER Values (continued)

– Comments from Michele Friedrich and Jamie Anthony indicated that new values appeared much more realistic

– Final EER summary table updated and included in SIW

– Explanation of how to use table (and weightings) is included in the SIW, in addition to analysis summary

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Residential Water Heater Recovery Efficiencies

• The ratio of energy delivered to the water to the energy content of the fuel consumed by the water heater (NREL)

• Does not include standby losses• Values are used in a number of RTF measure

workbooks• DOE’s standard assumptions are included in

the SIW

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Next Round of SIW Updates• Incoming water temperatures– Ecotope has collected incoming water temp data

from heat pump water heater research

– Dataset expected to be ready in a couple of months

• Update/validation of residential HVAC interaction factors using latest version of SEEM

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RTF Staff Recommendation

• Adopt the values proposed in the Standard Information Workbook for use in completing measure assessments

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Proposed Decision

“I _______________ move that the RTF adopt the values proposed in the Standard Information Workbook v1.6 for use in completing measure assessments.”