History of District Heating in the United States

| Chronological List of District Heating Systems in the United States |

District Heating in Hempstead, New York

Nassau County built a central utilities plant in 1972 on the former site of Mitchell Field that served only three customers.  The facility was not financially sound and it was leased to Trigen in 1989 to allow them to install a cogeneration plant.

The plant was shut down and abandoned by 2022. 


References
1980 "Utility Plant Pipe Flaws Found," Newsday, January 29, 1980, Page .

1988 "No Profits in Sight for Nassau Power Plant," Newsday, April 4, 1988, Page 23.
Nassau County's giant Central Utility Plant at Mitchel Field, built in 1972 to supply steam for heating and cool water for air conditioning to a government complex that never came to be, has lost an estimated $21 million since it opened, county records have shown.
And county officials admit there's no turnaround in sight for the plant, which has been plagued by poor planning, mechanical failures and an inability to sign up new customers. The plant, which cost $5 million to build, lost $1.2 million last year alone, according to county records, and serves only three customers: Nassau Community College, the Nassau Veterans Memorial Coliseum and the Long Island Marriott Hotel in Uniondale. Critics say that having a plant supply only three buildings when it was built to serve a small city of government facilities is roughly akin to putting a locomotive engine into a motor scooter.

1991 "Trigeneration Brings Cost & Energy Savings to Nassau County," by Tom Casten and Claudette Greene, District Heating and Cooling 76(4):4-7, 9-11, 13-15 (Second Quarter 1991)


© 2026 Morris A. Pierce