Orange County NC Website
Browse       Search
A-34 <br />Approved 4/20/99 <br />Energy Efficiency in Public-Schools <br />Appendix D <br />Overview <br />The following outline of technologies, strategies, tools, and issues does not represent any new concepts <br />for school construction standards and financing policy makers. Rather, the emphasis here is to present <br />those concepts in a single simple document that indicates that creating fiscally sound energy efficiencies <br />and achieving real savings in energy and energy technology expenditures are a matter of planning and <br />balance. <br />Eneray Savings Tools and,Strategi~s <br />• Energy Efficient Lighting - efficient lighting types (fluorescent, metal halide,. high pressure <br />and Lighting Design sodium), proper lighting levels, lighting controls (occupancy sensors, <br />level controls, etc.), task lighting, multi-stage lighting, etc. <br />• Energy Management Controls -Thermostats, HVAC setback controls, etc. <br />• Siting -solar orientation, earth integration, plantings/landscaping <br />• Energy Efficient Heating, Ventilation - High efficiency motors, fuel selection, system design, <br />and Air Conditioning zoning, thermal storage, heat reuse, natural convection <br />• Building Shell -color,. thermal mass, insulation, location of windows, window glazing (diffusion, <br />high transmittance, etc.) interior and exterior reflectance, ceiling height <br />• Solar Energy - daylighting and passive solar heating <br />Important terms an'd concerts for develorin4 energy savings strategies, . <br />• Eiectrical Energy cost components -Peak demand charge, time of day rates, usage costs <br />• ~Energy.use goal - The lowest target for or limit of a building's energy use (in British Thermal <br />Units [BTU's] per square foot per year) <br />' ° ~ Town of Chapel Hill Energy Ordinance sets goal at 30% less than NC State <br />. ~ Building Code requirements <br />~ US Department of Energy Building Energy Performance Standards range <br />from 36,000 BTU's per square foot per year for elementary schools to x0,000 <br />BTU's per square foot per year for high school gymnasiums <br />• Energy use budget -The upper limit of building's energy use in BTU's per square foot per year <br />• Life cycle cost analysis -The annualized cost of installing or constructing, operating and <br />maintaining any component or feature of building over its useful life or <br />'some portion thereof deemed appropriate in analysis <br />