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EEM #1 Lighting Upgrade
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Electrical Cost = $ 0.06 per kWh
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Demand Cost = $ 3.05 per kW
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Existing Conditions
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Fixture TypeSpace TypeWatt/fixtureQtyTotal Watt
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Suspended CFLClassrooms16828247376
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Recommended Change
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Replace CFL with LED Classrooms8428223688
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Energy (kWh) = Fixture Watt/1000 x qty of fixtures x "ON" hrs per year
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Demand (kW) = Lighting Total Watt/1000 kW/Watt
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Hours "ON" = 24 hrs.day x 365 days/year
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Hours "ON"5096hrs
14 hrs per day; 365 days per year
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 Existing Energy =241428kWh Cost for Fixtures = $ 56,400
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Existing Energy Cost = $ 14,486 Labor Cost = $ 3,520
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 Total Cost = $ 59,920
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Proposed Energy =120714kWh
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Proposed Energy Cost = $ 7,243
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Existing Demand =47
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Existing Demand Cost =144
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Proposed Demand =24
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Proposed Demand Cost = $ 72
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Demand Savings = 24kW
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kWh Savings = 120714kWh
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 Elec Demand Cost Savings = $ 72
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Elec Cost Savings = $ 7,243
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Total Savings = $ 7,315
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EEM #1 Estimated Savings
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Annual Energy Usage & Savings Estimate
Existing Electric Usage (kWh)
241428
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Proposed Electric Usage (kWh)
120714
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Electric Savings (kWh)
120714
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Electric Cost Savings ($)
 $ 7,243
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Demand Savings (kW)
24
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Electric Demand Savings ($)
 $ 72
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Existing Natural Gas Usage (Therms)
NA
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Proposed Natural Gas Usage (Therms)
NA
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Natural Gas Savings (Therms)
NA
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Natural Gas Savings ($)
 NA
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Annual Energy Cost Savings
 $ 7,315
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Measure Cost & Simple PaybackProject Cost $ 59,920
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Simple Payback (Cost/Savings)
8.2
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