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<br />42 <br /> <br />ECM #2. Building Automation Controls <br />Savings are based on the elimination of the pneumatic air compressor. <br /> <br /> <br /> <br />ECM #3. Lighting Upgrade <br /> <br />Lighting Savings: <br />Lighting usage (kWh) savings is computed in the following manner: <br />(FWE/1000 x QFE x OHE) – (FWN/1000 x QFN x OHN) <br />Lighting demand (kW) savings is computed in the following manner: <br />(FWE/1000 x QFE) – (FWN/1000 x QFN) <br />Where: <br />FWE = Fixture Watts – Existing <br />QFE = Quantity of Fixtures – Existing <br />OHE = Operating Hours – Existing <br />FWN = Fixture Watts – New <br />QFN = Quantity of Fixtures – New <br />OHN = Operating Hours – New <br /> <br />Average operating hours used for savings calculations are 4380 hours for exterior lighting. Existing and new fixture watts and <br />fixture counts are given in Attachment A, Scope of Work. <br /> <br />Lighting Savings are verified by taking measurements to verify fixture wattages are equal to or less than those shown in the <br />table below. If the average wattage of a given fixture type does not exceed the value shown, the savings are achieved as <br />guaranteed. The fixture type, quantity installed, and quantities to be measured are listed. <br /> <br />Fixture Types Included in the Lighting Measurement <br /> <br /> <br /> Where multiple fixtures can be measured from a single switch or circuit, the total wattage measured at the switch or circuit <br />will be divided by the total number of fixtures to determine the wattage per fixture. <br /> <br />Motor 1 <br />(HP) <br />Motor 2 <br />(HP) <br />Current <br />Runtime <br />(Hours/Week) <br />New Runtime <br />(Hours/week)Efficiency <br />Yearly Energy <br />Reduction (kWh) <br />5 5 168 0 0.895 48,423 <br />100% run <br />time <br />33% Run <br />time <br />kWh saved = mtr hp *(0.746 kW/hp)*runtime/week*#weeks/(mtr eff) <br />Lighting <br />Retrofit <br />Description <br />Quantity <br />Installed <br />Quantity <br />Measured <br />Existing <br />Watts/Fixtu <br />re <br />Estimated <br />Watts/Fixtu <br />re <br />Watts/Fixtu <br />re <br />Guaranteed <br />LED Bulb 1 1 75 17 15 <br />LED Fixture 7 1 65 12 76 <br />LED Fixture 3 1 128 28 76 <br />LED Fixture 5 1 128 38 <br /> 171 <br />LED Fixture 3 1 128 32 <br /> 86 <br />LED Fixture 19 2 64 40 <br /> 1,368 <br />LED Fixture 84 9 96 40 <br /> 27,216 <br /> 29,008