In order to meet Built Green’s renewable energy requirement, Dwell Development brought in local experts, Puget Sound Solar, to configure and install 6.6kW of photovoltaic panels on the roof. “The key to zero energy home building is to properly insulate and seal the home so heat and air are not lost through cracks in the building envelope,” says Anthony Maschmedt, owner of Dwell Development. The Emerald Star features advanced framing, insulation, and high-performance Euroclime wood-framed windows and doors creating an airtight seal impervious to leaks and city sounds.