1. 1 What is DEER?  Database for Energy Efficient Resources -A listing of residential and non-residential energy efficiency measures located at: http://eega.cpuc.ca.gov/deer/  DEER provides measure and building specific: Ex ante savings values: kW, kWh, kBtu; Measure costs; and Effective measure life (EUL)

2. 2 Non-Weather Sensitive Residential Measures Include:  CFL Lighting  Refrigerators  Clothes Washers & Dryers  Dishwashers  Water Heating  Swimming Pool Pumps

3. 3 Non-Weather Sensitive Res. Measures Residential CFL Savings CFL savings impact = (delta watts/unit * hours/day * days/year * In Service Rate) / 1000 watts/kWh CFL demand impact = delta watts/unit * In Service Rate * Peak Hour Load Share The “In Service Factor” is an estimate of the percentage of lamps that are actually used. “Hours of Operation/Day” and “Peak Hour Load Share” from KEMA CFL Metering Study. For example (14W CFL replace 60W Inc): CFL savings impact = 35.4 kWh (46W * 2.34 hours/day * 365 days/year * 0.9) / 1000 watts/kWh CFL demand impact = 3.35 W 46W * 0.9 * 0.081

4. 4 Non-Weather Sensitive Res. Measures Residential Water Heating Measures High efficiency water heater (electric EF=0.93, gas EF=0.63) Heat pump water heater (EF=2.9) Point of use water heater Low flow showerhead (from 2.5 to 2.0 gallons per minute) Pipe wrap Faucet aerators Savings expressed as % of base use Base use varied by utility service area (same method as 2001)

5. 5 Non-Weather Sensitive Non-Res. Measure Groups  Interior Lighting  Exterior Lighting  Cooking  Copy Machine  Water Heating  Vending Machine Controls  High Efficiency Motors  Agriculture

6. 6 Non-Weather Sensitive Non-Res. Measures  Interior Lighting Group: CFL screw-in lamps CFL hardwire fixtures High intensity discharge (HID) lamps Premium T8 lamps Dimming Ballasts De-lamping fluorescent 4 ft and 8 ft fixtures

7. 7 Non-Weather Sensitive Non-Res. Measures  Exterior Lighting & Exit Signs Methods HID lamps : delta watts saved * hours of use (4,100 hours) no peak impacts Exit Signs : delta watts saved * 8760 hours * Interactive Effects peak = delta watts * Interactive effects * 1.0 (coincidence factor) Timeclocks & Photocells: watts controlled * hours of control no peak impacts

8. 8 Weather Sensitive Measures Methods Used  Employed DOE-2/eQUEST heat load simulation model Hourly simulation of all elements Includes details of configurations  Measures include high efficiency AC, furnaces, controls, shell measures, and maintenance (for single family, multi family, mobile homes and 22 non-res. building types, in each of 5 building vintages, for 16 climate zones).

9. 9 Weather Sensitive Measures Calibration  Residential Residential Appliance Saturation Survey (RASS) used to calibrate end-use values  Non-residential Adjustments both at “activity area” and whole building level using preliminary Commercial Energy Use Survey (CEUS) values and values from EM&V studies

10. 10 Weather Sensitive Measures Simulation cases  Base case Vintage typical base on survey data  Code base Case Minimally compliant or standard practice  Measure Case Most common program tier's

11. 11 Overview of 2001-2005 Data Changes  The scope of some measures has been expanded CFL size categories expanded More evaporative cooler options Windows expanded to include non-res. high performance glazing  Several measures eliminated or reduced in scope Most T8 systems eliminated with the exception of premium efficiency and dimming T8 ballasts Eliminated coin-operated high efficiency clothes washers and hot water heater tank wrap  Major changes in savings for some measures Programmable thermostats CFLs Low flow showerheads AC units

12. 12 Defining Measure Cost Parameters  Measure costs specifications encompass the sizes and technical specs of measures used in the energy analysis, but reflect availability of products on the market  Cost data is first cost only -- life cycle or O&M costs/cost savings not included  Some price observations (outliers) excluded; rational purchasing policy assumed (“who would pay THAT?”)  Equipment and labor prices are specific to California to extent possible (average across state)  Cost units ($ / ton, $ / HP, $ / square foot, etc.) Mostly the same although different for some measures Distinct field in detailed cost data; appended to Cost Basis designator in measure detail

13. 13  How to find the most applicable cost information? Measure detail pages for each run ID - the per unit equipment measure cost of $13.65 for all 90% residential furnaces This provides an average cost based on a 100,000 Btu furnace The ‘Cost Data’ file under ‘Supporting Documents’ provides prices on a range of furnace sizes This provides a range of costs for 90% AFUE furnaces from 60,000 Btu to 140,000 Btu. Per unit costs ($/KBtu) ranges from $21.53 to $12.13, respectively The cost workbook section – Can use either statistical summary or individual price observations For example, the per unit equipment measure cost for 90% AFUE 100,000 furnaces ranges from to $12.31 to $16.52 based on 9 observations Cost Data Defining Cost Parameters

14. 14 Website Considerations  Two Levels of Savings Customer savings - for system savings and early replacement savings. “Above Code” Savings - for all measures affected by an energy code or standard (reportable savings for replace on burnout.)  Common Units The energy and cost common units are distinct Over 90% of cases, they are the same When different, distinctly identified

15. 15 Website Considerations  Application – indicates if the cost is for: Retrofit (RET) - replacing a working system with a new technology or adding a technology. Replace-on-burnout (ROB) - replacing a technology at the end of its useful life New construction or major renovation (NEW) - installing a technology in a new construction or major renovation  Cost Basis – indicates if the cost is: Incremental (INCR) - the differential cost between a base technology and an energy efficient technology Installed (FULL) - the full or installed cost of the measure including equipment, labor, overhead & profit (OH&P)

16. 16 Website Navigation – Opening Screen

17. 17 Website Navigation – Browse Measures

18. 18 Website Navigation – Select Subcategory

19. 19 Website Navigation – Review Summary Page - Top

20. 20 Website Navigation –Summary Page Information  Area #1 - Summary Identification of 13 variables  Area #2 – Further Filtering Options Climate Zone, Building Type, Vintage, Savings Unit  Area #3 – Sorting Order  Area #4 – Download Measure Detail in Excel

21. 21 Website Navigation – Review Summary Page - Bottom

22. 22 Website Navigation – Detailed Measure Information

23. 23 Website Navigation – Detailed Measure information - Top

24. 24 Website Navigation – Detailed Measure information - Bottom

25. 25 Supporting Documents Section  Website Users Guide  Net-to-Gross Ratios Table (if in doubt use.8)  Access Tables  Glossary  Cost Data  Cost Data User’s Guide  New EUL Estimates (7-14-05 SERA Report)  Consolidated Measure Data