End-Use Savings Shapes

Heat Pump Rooftop Units (HP-RTUS) With Original Fuel Backup For original fuel (OF) backup scenario: 27% stock heating gas savings (226 TBtu) ⚫ -22% stock heating electricity savings (-43 TBtu) • 11% stock cooling electricity savings (81 TBtu) • 19% stock fan electricity savings (112 TBtu) • Cooling and fan savings could also be attributed to high-performance non-HP-RTUS. • Savings are associated with premium units. Electric backup scenario shows higher electricity and lower natural gas consumption compared to original fuel scenario. Stock Site Energy by Fuel and End Use Annual Energy Consumption (TBtu) 2500- 2000- 827.5 6012 566.3 Heat Rejection, Electricity Heat Recovery, Electricity Electric Backup Scenario: Less gas heat, more electric ng heat ing, Other Fuel Heating, District Heating 1500- 197.6 240.5 268.3 Heating, Natural Gas 724.7 Heating, Electricity Interior Lighting, Electricity 644.0 644.0 Cooling, District Cooling 1000- Cooling, Electricity 588.3 500- 476.4 476.4 Fans, Electricity Interior Equipment, Natural Gas Interior Equipment, Electricity 0 Baseline HP RTU OF Backup HP RTU E Backup OF original fuel backup = E = electric backup NREL 27

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