Ameresco wins a $77m contract for energy and water conservation from US DOI

US Department of the Interior (DOI) has awarded a contract worth $77m to Ameresco to implement water conservation and energy efficiency measures as well as provide energy management services at its headquarters in Washington DC.

The term for the Energy Savings Performance Contract (ESPC) extends for a period of 20 years.

Ameresco Federal Solutions vice president and general manager Nicole Bulgarino said: "Ameresco is excited to serve the Department of the Interior in leading by example at its headquarters building in the nation’s capital.

"This project will support the Department in meeting its sustainability goals through innovative water saving measures and ongoing services that are expected to save energy and optimise building operations for the next two decades."

Under the contract, the US based energy service company will install measures to bring down the energy and water consumption in the seven-storied DOI building which covers an area of 1.3 million ft².

Ameresco is expected to reduce 70% of domestic water consumption in the headquarters by installing plumbing fixtures and through groundwater harvesting.

The groundwater, which is presently collected under the building, is released in to storm drains.

The firm will treat and store the groundwater with the help of a re-purposed chilled water storage tank, so that it can be used later for non-potable activities including irrigation, cooling tower makeup water supply, and toilet and urinal flushing in bathrooms.

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Image: United States Department of the Interior bin Washington, DC.Photo: Courtesy of Matthew G. Bisanz.