Laserfiche WebLink
Energy Analysis <br />Existing ramp <br />Readings from Connexus bills <br />11/8/2011 20249 <br />11/8/2010 16718 <br />Total Annual Cost= <br />3531 x <br />Multiplier <br />100 353100 KwH per year <br />353100 KwH x $ 0.10 = $ <br />33,544.50 29425 KwH per month <br />Lighting Costs Only # of fixtures Draw (W) Hours Cost/Kwh KwH / year KwH / month <br />100W Metal halides 201 130 5000 $ 0.10 = $ 12,411.75 130650 10888 <br />150 W Triple Light 8 150 5000 $ 0.10 = $ 570.00 6000 500 <br />70 W Wall sconce 15 70 5000 $ 0.10 = $ 498.75 5250 438 <br />100 W Canopy Light 32 100 5000 $ 0.10 = $ 1,520.00 16000 1333 <br />$ 15,000.50 157900 13158 <br />Therefore approx. 45% of electric costs are due to the exterior lighting <br />The rest is the HVAC system in the stair elevator tower. This will remain constant except for the energy cost increase. <br />Option Analysis <br />Option 1: Stay with current lighting fixture <br />Existing ramp # of fixtures Draw (W) Hours Cost/Kwh KwH / year KwH / month Total Annual Savings <br />100W Metal halides 201 130 5000 $ 0.12 = $ 15,678.00 130650 10888 <br />150 W Triple Light 8 150 5000 $ 0.12 = $ 720.00 6000 500 <br />70 W Wall sconce 15 70 5000 $ 0.12 = $ 630.00 5250 438 <br />100 W Canopy Light 32 100 5000 $ 0.12 = $ 1,920.00 16000 1333 <br />Expansion ramp <br />100W Metal halides 86 130 5000 $ 0.12 = $ 6,708.00 55900 4658 <br />150 W Triple Light 2 150 5000 $ 0.12 = $ 180.00 1500 125 <br />70 W Wall sconce 8 70 5000 $ 0.12 = $ 336.00 2800 233 <br />100 W Canopy Light 4 100 5000 $ 0.12 = $ 240.00 2000 167 <br />Projected annual lighting cost <br />Option 2: Change design to include flourescent in ramp expansion but leave existing ramp alone <br />$ 26,412.00 <br />220100 18342 <br />$ <br />Existing ramp # of fixtures Draw (W) Hours Cost/Kwh KwH / year KwH / month Total Annual savings <br />100W Metal halides 201 130 5000 $ 0.12 = $ 15,678.00 130650 10888 <br />150 W Triple Light 8 150 5000 $ 0.12 = $ 720.00 6000 500 <br />70 W Wall sconce 15 70 5000 $ 0.12 = $ 630.00 5250 438 <br />100 W Canopy Light 32 100 5000 $ 0.12 = $ 1,920.00 16000 1333 <br />Expansion ramp <br />Two 52 W T5 flourescent 86 103 5000 $ 0.12 = $ 5,314.80 44290 3691 <br />150 W Triple Light 2 150 5000 $ 0.12 = $ 180.00 1500 125 <br />70 W Wall sconce 8 70 5000 $ 0.12 = $ 336.00 2800 233 <br />100 W Canopy Light 4 100 5000 $ 0.12 = $ 240.00 2000 167 <br />Projected annual lighting cost $ 25,018.80 208490 17374 $ 1,393.20 <br />Option 3: Change design of new ramp and retrofit existing ramp <br />Existing ramp # of fixtures Draw (W) Hours Cost/Kwh KwH / year KwH / month Total Annual savings <br />Two 52 W T5 flourescent 201 103 5000 $ 0.12 = $ 12,421.80 103515 8626 <br />150 W Triple Light 8 150 5000 $ 0.12 = $ 720.00 6000 500 <br />70 W Wall sconce 15 70 5000 $ 0.12 = $ 630.00 5250 438 <br />100 W Canopy Light 32 100 5000 $ 0.12 = $ 1,920.00 16000 1333 <br />Expansion ramp <br />Two 52 W T5 flourescent 86 103 5000 $ 0.12 = $ 5,314.80 44290 3691 <br />150 W Triple Light 2 150 5000 $ 0.12 = $ 180.00 1500 125 <br />70 W Wall sconce 8 70 5000 $ 0.12 = $ 336.00 2800 233 <br />100 W Canopy Light 4 100 5000 $ 0.12 = $ 240.00 2000 167 <br />$ 21,762.60 181355 15113 $ 4,649.40 <br />