CitiesGoGreen -September 2008 - (Page 23) High Performance Buildings Case Studies Along the High Performance Building Continuum Chilton High School, Chilton, Wisconsin Owner: Chilton Public School District People in Chilton, Wisconsin, strongly supported the idea of a new sustainable school in their community. The proposed green features were part of a public referendum that approved the project. “A major focus of our referendum committee was to design a building that was extremely energy efficient, but at the same time would offer an environment that students would enjoy,” said Steve Patz, then superintendent of the Chilton Public School District. The resulting 186,000 sq. ft. building is 25 percent more energy efficient than others of its type, and projects a cost savings of $55,000 a year. It emphasizes natural daylight with over 4,700 sq. ft. of exteriEnergy efficient Chilton High School saves $55,000/yr in energy costs. Lower Windsor Township Community Center, Wrightsville, Pennsylvania Owner: Lower Windsor Township The new Lower Windsor Township walls and roof, and more efficient lightMunicipal Building houses the coming systems. The building is projected to munity’s administrative offices, police save township taxpayers over $30,000 department, public meeting room, senior per year in energy and water costs. center, gymnasium and social hall. This The building’s lighting systems were 37,000 sq. ft. building achieved a LEED designed to use less than 1 watt per Silver rating for its 59 percent reduction sq. ft., while maintaining appropriate in water and energy use compared to a lighting levels. Energy usage is further typical facility of its type. reduced by the use of occupancy senEnergy-saving features include ground sors, and the exterior lighting systems source heat pumps for heating and were designed to prevent spill light from cooling along with energy efficiency reaching adjacent properties. measures such as triple-glazed windows, Project Profile (PDF): http://www.seven higher overall insulating values in the group.com/pdf/windsor.pdf or glass and clerestory design that allows natural light into nearly every classroom and common area. Research on schools has demonstrated a learning benefit from daylighting. Other energy efficiency features include: energy efficient boilers, exhaust heat recovery, high efficiency glazing, motion sensors, variable frequency drives on fans and pumps, and variable air volume (VAV) on the HVAC. Project Profile (PDF): http://www.day lighting.org/pubs/profile_chilton.pdf Sun Field Station’s solar heating system provides 60-80 percent of winter heating. Leslie Shao-ming Sun Field Station at Jasper Ridge Biological Preserve Owner: Stanford University Designers of the Leslie Shao-ming Sun Field Station at the Jasper Ridge Biological Preserve set out to create a building that wouldn’t contribute to the current environmental problems that researchers were studying at the preserve. Namely, they wanted a building that would minimize its environmental footprint and serve as an educational tool to demonstrate the principles of sustainability and energy efficiency. The resulting 9,800 sq. ft. field station was designed to produce net zero carbon emissions and reduce the consumption of virgin materials. The building’s 22kW grid-connected photovoltaic system supplies the net power needed to run the field station. Whenever excess energy is produced, it is sent to the grid. Its solar heating system provides 60-80 percent of the total energy for winter heating. Other features include: passive cooling, daylighting, high efficiency appliances and lighting, high efficiency building envelope. Project Profile: http://jrbp.stanford.edu/ fieldstation.php September 2008 .com 23 http://www.neep.org/ http://www.neep.org/ http://www.daylighting.org/pubs/profile_chilton.pdf http://www.daylighting.org/pubs/profile_chilton.pdf http://www.ashrae.org/technology/page/938 http://www.ashrae.org/technology/page/938 http://www.advancedbuildings.net http://www.advancedbuildings.net http://www.gettingtofifty.org http://www.bcap-energy.org/node/156 http://www.bcap-energy.org/node/156 http://jrbp.stanford.edu/fieldstation.php http://jrbp.stanford.edu/fieldstation.php http://www.sevengroup.com/pdf/windsor.pdf http://www.sevengroup.com/pdf/windsor.pdf http://CitiesGoGreen.com
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