DHP, each home (on average) would save around 600 kWh-equivalent of supplemental fuels (in terms of usable energy delivered to the conditioned space). This equals a total of 242,523 MWh equivalent of savings across the Heating Zone 1 as a result of reduced supplemental fuel use. Table 4 Candidates for DHP Installation and Total Potential Supplemental Fuel Savings (Energy Delivered to the Conditioned Space) Supplemental fuel savings, energy Number of zonal delivered to space Heating Zone electric homes Each home Region (MWh) (kWh) 1 401,529 604 242,523 2 111,150 204 22,675 3 33,367 1,690 56,390 Data on fuel consumption and the types of heating appliances used throughout the region were collected by the 2012 Residential Building Stock Assessment. These were combined with estimates of average appliance efficiency and fuel energy content to inform estimates of potential fuel savings (in terms of cords of wood, tons of pellets, and gallons of propane) resulting from the installation of DHPs. For this savings estimate, the RTF Staff used the following assumptions: The average cord-wood appliance is 50 percent efficient, and cord-wood averages 13,760 kBtu/ton The average pellet stove is 85 percent efficient, and the average energy content of a ton of pellets is 16,400 kBtu. Since burning propane does not generate significant quantities of PM2.5, the tables that follow only show estimates related to cord-wood and wood pellets. Table 5 Total Potential Wood Savings (Cords of Wood and Tons of Pellets) Share of total Potential savings Potential savings supplemental fuel (energy content, Heating (mass quantity) energy MWh) Zone Cord Cord Cords of Tons of Pellets Pellets wood wood wood pellets 1 59.7% 11.7% 231,242 45,277 57,340 9,420
DHP, each home (on average) would save around 600 kWh-equivalent of supplemental fuels (in terms of usable energy delivered to the conditioned space). This equals a total of 242,523 MWh equivalent of savings across the Heating Zone 1 as a result of reduced supplemental fuel use. Table 4 Candidates for DHP Installation and Total Potential Supplemental Fuel Savings (Energy Delivered to the Conditioned Space) Heating Zone Number of zonal electric homes Supplemental fuel savings, energy delivered to space Each home (kWh) Region (MWh) 1 401,529 604 242,523 2 111,150 204 22,675 3 33,367 1,690 56,390 Data on fuel consumption and the types of heating appliances used throughout the region were collected by the 2012 Residential Building Stock Assessment. These were combined with estimates of average appliance efficiency and fuel energy content to inform estimates of potential fuel savings (in terms of cords of wood, tons of pellets, and gallons of propane) resulting from the installation of DHPs. For this savings estimate, the RTF Staff used the following assumptions: The average cord-wood appliance is 50 percent efficient, and cord-wood averages 13,760 kBtu/ton The average pellet stove is 85 percent efficient, and the average energy content of a ton of pellets is 16,400 kBtu. Since burning propane does not generate significant quantities of PM2.5, the tables that follow only show estimates related to cord-wood and wood pellets. Table 5 Total Potential Wood Savings (Cords of Wood and Tons of Pellets) Heating Zone Share of total supplemental fuel energy Potential savings (energy content, MWh) Potential savings (mass quantity) Cord wood Pellets Cord wood Pellets Cords of wood Tons of pellets 1 59.7% 11.7% 231,242 45,277 57,340 9,420
woodsmokevaluationreport_draft_110414.docx