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The Pastore Center Energy Plant serves a mental health hospital located on a common site with both a minimum and maximum-security correctional facility in Cranston, Rhode Island. The plant enables the mental health hospital, administration offices and two prisons to operate completely segregated from the utility electric grid, while simultaneously producing steam to meet the heating and cooking requirements of the campus.
After a lengthy selection process, NORESCO was selected to renovate the existing plant, install two new gas turbines in a new building adjacent to the existing plant, and tie the new equipment to the existing plant and distribution system.
The Pastore Center is a campus housing Rhode Island's divisions of Mental Health, Retardation and Hospitals, Labor Department, and other state services, plus two prisons. The underground steam distribution and electrical distribution systems serve all buildings over a campus of 100 acres.
The existing boiler will be rehabilitated as well as build a new cogeneration facility. State employees will be trained in the operation of high-efficiency power generation equipment.
Tax-exempt financing for the project was arranged by NORESCO under a special arrangement including State appropriations needs.
The renovated cogeneration plant design consists of two Solar Centaur type "H" gas turbines, each rated at 3.0 megawatts, and each capable of producing 55,000 pounds per hour of steam through supplementary fired heat recovery steam generators. Two steam turbines rated at 2.0 megawatts each will use the energy of the high pressure steam to provide additional electricity and deliver low pressure steam through an extensive distribution network which provides steam for heating, hot water and absorption cooling to the campus.
Additional steam will be provided by one new water tube boiler rated at 110,000 pounds-per-hour, and a refurbished 100,000-pound per hour water tube boiler. The facility will provide all of the Pastore Center's steam and all of its electricity requirements.
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