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BOCC 8 <br /> Page 7 <br /> October 14, 1993 <br /> Electrical consumption costs <br /> 5 years x 50 weeks x 5 days x 11 hrs/day = 13, 750 hours <br /> 100 fixtures x 2 lamps x 58 watts/hr = 11,600 watts <br /> 11,600 watts x 13,750 hrs. / 1000 watts = <br /> 159,500 kilowatt hours (kwh) <br /> 159,500 kwh x $0.075 per kwh = $11,962 .50 <br /> Typical maintenance/replacement costs <br /> Electronic ballast replacement labor cost = $ 0.00 <br /> Electronic ballast replacement material cost = $ 0.00 <br /> replacement cost total = $ 0.00 <br /> Total 5-year operating costs <br /> T-8 lamp 5-year operating cost total = $15, 962.50 <br /> Re-lamping project summary <br /> Over a five year period, this project will save approximately <br /> $15,000 in direct energy and maintenance costs. Other costs <br /> savings may be realized in lowering peak electrical demand <br /> charges and lower heating loads. An important consideration <br /> is that it only takes ninety T-8 fixtures to produce the same <br /> amount of lighting as one hundred T-12 fixtures. It may be <br /> possible to achieve additional saving by removing or not using <br /> some fixtures in the project area. <br /> 2 . Implement a program to investigate the lighting requirements <br /> of every County building <br /> One of the more intriguing energy savings initiatives seen <br /> today is the EPA' s "Greenlights" program. The program <br /> offers technical assistance to business, local governments <br /> universities and others who control a great of lighted <br /> building space. The technical assistance is in the form of <br /> lighting surveys which determine the proper amount of light <br /> and the best and most energy efficient lighting equipment <br /> technology for use in and around buildings. The goal of the <br /> Greenlights program is to reduce the pollution that results <br /> from the generation of wasted or inefficiently used <br /> electricity. The downside to this program is that the EPA <br /> requires each program participant to agree to install the <br /> recommended lighting technology in ninety percent of its <br /> lighted spaces over a five year period. This requirement <br /> applies only to those spaces where energy savings would <br /> provide a prime rate plus six percent rate of return on the <br />