Built by Gristmill in 2011, this 14,300 sq. ft. structure is Vermont's largest net zero office building, and is the headquarters of Gristmill Builders. The Energy Mill produces electricity with free standing tracking solar panels, heats and cools with geothermal, and produces hot water with roof top solar panels. 10 Minutes to the Center of Stowe for dining and shopping, 10 minutes to interstate 89, and short distance from the thriving town of Waterbury.