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�E ergy <br />Table 1: Estimated energy savings and costs per ECM <br />Notes: <br />1. Estimated Duke Incentive is typically ten months' worth of electrical energy <br />savings, less customer's portion of assessment cost <br />2. Savings are based on Duke Energy Rate Schedule OPT -G, effective February <br />2012 <br />3. Electrical Energy savings are based on SC February 2012 rate increase <br />4. Savings are estimates based on industry experience, ASHRAE assumptions <br />and guidelines, DOE studies on re- commissioning; not on modeled savings <br />Rev A 2012 -05 -15 <br />Page 6 <br />Final Draft <br />G -2 Page 330 <br />Total <br />Estimated <br />Savings <br />Cost <br />Payback <br />ECM # <br />Description <br />($ /year) <br />($) <br />(years) <br />ECM1: Chiller Plant Upgrades <br />$ 11,000 <br />$ 73,000 <br />6.6 <br />–I– – <br />2 <br />– – – – – – – – – – – – – – – – – – – – – <br />ECM2: Air Handler Control Upgrades <br />– <br />– – – – <br />$ 11,000 <br />– <br />– – – – <br />$ 60,000 <br />– – – – <br />5.5 <br />— <br />3 <br />— — — — — — — — — — — <br />ECM3: Lighting Upgrades <br />— — <br />$ 12,000 <br />— — <br />$ 20,000 <br />— — <br />1.7 <br />Total <br />$ 34,000 <br />$ 153,000 <br />4.5 <br />— — — — — — — — — — <br />Du ke En I nc en tiv e _ _ _ _ _ _ <br />— — <br />_ _ <br />— — <br />$ 3 4,0 00 <br />— <br />_ _ <br />Net Total <br />$ 34,000 <br />$ 119,000 <br />3.5 <br />Notes: <br />1. Estimated Duke Incentive is typically ten months' worth of electrical energy <br />savings, less customer's portion of assessment cost <br />2. Savings are based on Duke Energy Rate Schedule OPT -G, effective February <br />2012 <br />3. Electrical Energy savings are based on SC February 2012 rate increase <br />4. Savings are estimates based on industry experience, ASHRAE assumptions <br />and guidelines, DOE studies on re- commissioning; not on modeled savings <br />Rev A 2012 -05 -15 <br />Page 6 <br />Final Draft <br />G -2 Page 330 <br />