US-based supplier of ‘on-site utility’ technology, American DG Energy, is now operating a CHP system at the Doubletree Guest Suites, Boston, Massachusetts.
The company began producing clean energy, in the form of space heat and domestic hot water, at the Doubletree hotel in December 2010, with a 75 kW unit located at the hotel but owned and operated by American DG Energy.
The company is able to provide the CHP system at no cost to the hotel, as well offering the Doubletree a discount on the energy produced by the energy system. Revenue from the project is estimated at US$1.3 million over a 15-year agreement.
Additionally, the efficiency of the CHP system is expected to reduce the hotel’s greenhouse gas emissions by around 300 tonnes of carbon dioxide annually. 
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