This is The Sentinel, a home that went through an efficiency renovation in Seattle.  The work was performed by Seattle-based Green Canopy Homes which takes existing homes in walkable neighborhoods and transforms them with high-performance upgrades and a touch of community design.  They all carry an Energy Performance Score and Built Green certification, and many of them have some geeky features like real-time energy monitoring, a digital homeowner’s manual, and on-site solar power.

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