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Material Type: Project; Class: Environmental & Resource Econ; Subject: Economics; University: Wellesley College; Term: Unknown 1989;
Typology: Study Guides, Projects, Research
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costs: $140 savings : $517.19 per year payback time : 3 or 4 months
costs : $52 savings : $206.49 per year payback time : 4 or 5 months
costs: $0.00 savings : $110.38 per year payback time : instant!
costs : $350 savings : $117.42 per year payback time : 3 years
costs : $350 savings: $137.59 per year payback time : 3 years
payback time for occupancy sensors is too long
Description: Evaluation of replacing inefficient incandescent lights with compact fluorescents, and installing occupancy or daylight override sensors to reduce energy use, energy cost, and environmental footprint Buildings: Pendleton is already relatively environmentally efficient, so changes would be simple and minimal; other buildings on campus are less efficient, so the same changes that are possible in Pendleton would result in greater savings elsewhere. $ Costs and Savings in Pendleton: If Projects with payback time less than 3 years were implemented… Total costs= $1, Net savings in first year= $2. Net savings in following years = $1,174. Environmental Impact: Reduction in CO2 emissions= 30 tons per year (equivalent to the CO2 absorbed annually by 4, healthy trees!)