LEED
Leadership in Energy and Environmental Design (LEED)
LEED aims to lower the energy used for heating water in homes and buildings by encouraging the installation of more efficient water heaters.
Installing an ENERGY STAR-qualified water heater earns 1 point. Installing a solar water heater combined with an ENERGY STAR model earns 2 points if it meets at least 40% of your annual hot water needs, or 3 points if it meets at least 60%.