PGE Water Heater ET Final Report - FINAL.pdf - Emerging ...

PG&E’s Emerging Technologies Program ET12PGE3191
Figures
Figure 1 Historical Water Heater Sales through 2011 ..................... 4
Figure 2 Water Heating Energy Consumption in Residential
Households ................................................................. 6
Figure 3 2010 ENERGY STAR Water Heater Promotions by Product
Type ........................................................................... 7
Figure 4 Incentive Rates for ENERGY STAR Water Heater Programs ... 8
Figure 5 Distribution of Residential Natural Gas Water Heater
Models by Energy Factor ............................................. 16
Figure 6 Distribution of Residential Electric Water Heater Models by
Energy Factor ............................................................ 16
Figure 7 Water Heat Market Structure ....................................... 17
Figure 8 Natural Gas Water Heater Models by Manufacturer and
Energy Factors ........................................................... 17
Figure 9 Electric Resistance Water Heater Models by Manufacturer
and Energy Factor ...................................................... 18
Figure 10 Electric Heat Pump Water Heaters by Manufacturer .......... 18
Figure 11 Methods of Gathering Water Heater Information .............. 21
Figure 12 Water Heater Purchase Decisions ................................... 23
Figure 13 PG&E Geographic Segments ........................................ 25
Figure 14 PG&E Demographic Data by Area Segments .................. 26
Figure 15 ARRA Appliance Rebate Program - National Interim
Results ..................................................................... 35
Figure 16 ARRA Appliance Rebate Program - California Interim
Results ..................................................................... 35
Figure 17 Estimated Market Potential for Water Heater Energy
Savings ..................................................................... 38
Figure 18 TRC Analysis Heat Pump Water Heaters .......................... 41
Figure 19 TRC Analysis Energy Star Water Heaters - Natural Gas,
Storage-Type ............................................................. 41
Figure 20 TRC Analysis High Efficiency Water Heaters - Electric,
Storage-Type ............................................................. 42
Figure 21 TRC Analysis High Efficiency Water Heaters - Natural
Gas, Storage-Type ..................................................... 42
Figure 22 Test Program Participation Map ...................................... 46
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