Table 72. HES-IE SP1 and SP4 Electric Billing Analysis: Savings Summary, by Participant Heating Fuel (Adjusted Gross) Model Savings as Relative HES-IE Participant n PRENAC Savings Percentage of Precision at Subgroup Heating Type (kWh) Pre-Usage 90% Electric 130 15,277 1,279 8% ±73% SP1 Non-electric 1,218 8,007 1,051 13% ±21% Overall 1,348 8,708 1,074 12% ±20% Electric 698 9,162 1,155 13% ±24% SP4 Non-electric 1,972 5,794 441 8% ±26% Overall 2,670 6,617 629 10% ±23% Table 73 shows the bulk of HES-IE SP1 and SP4 electric-savings participation occurred in single-family homes, producing higher savings than multifamily, and the subprograms exhibited similar pre-period usage between the participant types. This resulted in higher savings as a percentage of pre-period usage for single-family homes. 73. HES-IE SP1 and SP4 Electric Billing Analysis: Savings Summary, by Building Type (Adjusted Gross) Savings as Relative Participant Model Savings HES-IE Subgroup n PRENAC Percentage of Precision Heating Type (kWh) Pre-Usage at 90% Single family 1,266 8,747 1,119 13% ±19% SP1 Multifamily 82 8,106 584 7% ±159% Overall 1,348 8,708 1,074 12% ±20% Single family 2,665 6,543 647 10% ±22% SP4 Multifamily 5 7,661 213 3% ±41% Overall 2,670 6,617 629 10% ±23% Realization Rate Table 74 provides realization rates for HES-IE SP1 and SP4, based on the participant gross and adjusted gross savings for the billing analysis sample. Table 74. HES-IE SP1 and SP4 Electric Billing Analysis: Realization Rate Summary Model Reported Ex Model Reported Ex HES-IE Realization Savings as Ante Savings as Ante Savings Savings Subgroup Rate Percentage of Percentage of (kWh) (kWh) Pre-Usage Pre-Usage Savings 765 1,278 60% 9% 15% SP1 Adjusted Gross 1,074 1,278 84% 12% 15% Savings
Table 72. HES-IE SP1 and SP4 Electric Billing Analysis: Savings Summary, by Participant Heating Fuel (Adjusted Gross) HES-IE Subgroup Participant Heating Type n PRENAC Model Savings (kWh) Savings as Percentage of Pre-Usage Relative Precision at 90% SP1 Electric 130 15,277 1,279 8% ±73% Non-electric 1,218 8,007 1,051 13% ±21% Overall 1,348 8,708 1,074 12% ±20% SP4 Electric 698 9,162 1,155 13% ±24% Non-electric 1,972 5,794 441 8% ±26% Overall 2,670 6,617 629 10% ±23% Table 73 shows the bulk of HES-IE SP1 and SP4 electric-savings participation occurred in single-family homes, producing higher savings than multifamily, and the subprograms exhibited similar pre-period usage between the participant types. This resulted in higher savings as a percentage of pre-period usage for single-family homes. 73. HES-IE SP1 and SP4 Electric Billing Analysis: Savings Summary, by Building Type (Adjusted Gross) HES-IE Subgroup Participant Heating Type n PRENAC Model Savings (kWh) Savings as Percentage of Pre-Usage Relative Precision at 90% SP1 Single family 1,266 8,747 1,119 13% ±19% Multifamily 82 8,106 584 7% ±159% Overall 1,348 8,708 1,074 12% ±20% SP4 Single family 2,665 6,543 647 10% ±22% Multifamily 5 7,661 213 3% ±41% Overall 2,670 6,617 629 10% ±23% Realization Rate Table 74 provides realization rates for HES-IE SP1 and SP4, based on the participant gross and adjusted gross savings for the billing analysis sample. Table 74. HES-IE SP1 and SP4 Electric Billing Analysis: Realization Rate Summary HES-IE Subgroup Model Savings (kWh) Reported Ex Ante Savings (kWh) Realization Rate Model Savings as Percentage of Pre-Usage Reported Ex Ante Savings as Percentage of Pre-Usage SP1 Savings 765 1,278 60% 9% 15% Adjusted Gross Savings 1,074 1,278 84% 12% 15%