Database for Energy Efficiency Resource User Demonstration. Jennifer Barnes Pacific Energy Center October 11, 2005. What is DEER?. A collection of data for Residential and Non-Residential energy efficiency measures. http://eega.cpuc.ca.gov/deer/ It provides a common set of:
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Database for Energy Efficiency Resource User Demonstration
Pacific Energy Center
October 11, 2005
DEER Measure Cost Detail
Website and on-site cost surveys of retailers
Cost quotes from manufacturers, manufacturers sales representatives, and distributors
Cost surveys of contractors and design professionals.
Cost data from in California DSM program files, particularly local programs
Secondary sources and reports
Excel based cost analysis workbook developed for each measure.
Each workbook has 5 sections:
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
DEER Non-weather Sensitive Measure Detail
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. It is a rough estimate based on utility experience.
Hours of Operation/Day” and “Peak Hour Load Share” from KEMA CFL Metering Study
Demand Impact = 46W * 0.9 * 0.081 = 3.35 W
Key Input values for the calculator:Refrigerator Type (top, side, or bottom mount freezer)Ice through the door (yes or no)Refrigerator fresh volume (cubic feet)Refrigerator freezer volume (cubic feet)
Demand Impact = Measure Impact * energy/peak factor = 447 kWh * 0.417 = 186.4 W
Demand Impact = Measure Impact * energy/peak factor = 48 kWh * 0.371 = 17.8 W
Key Input values for the calculator:Base Energy Factor (EF) = 0.46Measure Energy Factor = 0.58Annual wash cycle (DOE test procedure) = 215 (assume SF)MF wash cycles (assumed to be ~75% of SF) = 160
Savings expressed as % of base use Base use varied by utility service area (same method as 2001)
Demand Impact = delta watts/unit * In Service Rate * Peak Hour Load Share
Cooking - Methodology Relied primarily on the PG&E technology briefsFor each of these measures, the energy savings calculationmethodology is of the form:
Savings = (APECRBase – APECREfficient) * Daily Hours * Days
APECR = The Average Production Energy Consumption Rate/hour
Daily Hours = 12
Days = 365
Peak (kW) = (motor HP * kW/HP * coincidence factor / EPACT motor efficiency) - (motor HP * kW/HP * coincidence factor / premium motor efficiency)