Colonnade Hotel Program Summary • Annual Energy Savings: · Electricity: 2,382,719 kWh - $220,159 · Gas: 12,688 therms - $21,316 · Water: 387,075 gallons - $1,318 · Estimated Maintenance Savings: $12,900 · Total: $255,693 • Total Installed Cost: $1,048,771 • NSTAR Incentives: $464,748 • Final Colonnade Cost: $584,023 • Simple Payback: 2.3 Years • ROI: 43.5% Energy Efficiency Measures • Lighting • HVAC • Controls COMPREHENSIVE ENERGY EFFICIENCY TREATMENT ENGIE Services U.S. (ENGIE) provided a comprehensive energy conservation analysis of the Colonnade Hotel in Boston, Massachusetts, a beloved Back Bay landmark, opened in 1971. ENGIE identified and implemented cost effective controls, lighting, chillers, and electrically commutated motor (ECM) technologies, saving the Ho

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