Buildings consume 40% of all energy in the U.S., 72% of all electricity and 55% of all natural gas. In the U.S., we spend $350 billion on energy for buildings … and that number is growing. The International Energy Agency (IEA) estimates that current trends in energy demand for buildings will stimulate about half of energy supply investments through 2030. If building site energy consumption in China and India grows to current U.S
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