How many NC State engineering students does it take to replace an inefficient light bulb with an energy-efficient one?
Five: Three to design a nuclear-powered light bulb that never needs changing, one to install it, and one to write the computer program that controls the wall switch.
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Federal tax credits are available for home energy efficiency improvements, including windows, doors, water heaters, and HVAC equipment for existing homes. For details, visit energystar.gov/taxcredits.
Source: Energy Star