Children learn from their school building
Each year the Committee on the Environment (COTE) of the American Institute of Architects selects a Top Ten “green buildings.” Today, we'll take a look at a school building that made the cut.
California-based Marin Country Day School attained the platinum level of LEED, which is the highest level. The school uses 20,000 Btu’s per square foot compared to the average school use of 110,000 Btu per square. Photovoltaic panels on the roof produces 13,000 Btu’s for a net use of 7,000 Btu per square foot. Sure it’s California but that is not much energy!
How does it do it? Walls of glass with deep overhangs keep the direct sun out of classrooms but let daylight in. Many classrooms don’t use the lights during the day.
A cooling tower evaporates water at night which costs less than energy-intensive, compressor-based air conditioning. The water is stored in a 15,000-gallon underground cistern, and is used to cool the slabs via radiant tubes. These same tubes also heat the buildings with the use of a condensing boiler.
Rainwater from the roof is collected and used to flush toilets and supplement the cooling system.
The best part of the project is how it educates the students about energy usage. Each class is metered separately so students can see how they impact energy usage. An online monitoring system shows them how the solar panels, rainwater collection, and energy usage are all interconnected.
When we educate people about how each one of us impacts energy usage, we will become better users. What a better place to start than with young children!
Stay tuned for the next blog in this series, featuring information on a small urban office building.
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