New York City steam system
| Company type | Subsidiary |
|---|---|
| Industry | Energy, District heating |
| Predecessor | New York Steam Company |
| Founded | 1882 |
| Fate | Merged with Consolidated Edison in 1954 |
| Headquarters | New York City , United States |
Area served | Manhattan, Brooklyn, Queens |
| Products | Steam for heating, cooling, cleaning, and sanitation |
| Parent | Consolidated Edison |
The steam network in New York City encompasses Con Edison's Steam Operations, an extensive piped steam infrastructure that delivers steam throughout significant sections of Manhattan. In addition to this primary network, smaller steam systems operate within institutions such as New York University and Columbia University, while numerous buildings maintain their own independent steam setups. This steam is utilized for purposes including heating, cooling, cleaning, and sanitation. Established in 1882, it stands as the largest system of its kind worldwide.
Con Edison's Steam Operations
Con Edison's Steam Operations functions as a district heating network that transports steam generated at facilities beneath Manhattan’s streets to provide heating and cooling services to commercial and residential buildings. Some clients also rely on this steam for cleaning and disinfecting processes.
The New York Steam Company commenced operations in lower Manhattan on March 3, 1882. By the year 1932, it was supplying steam to more than 2,500 structures through six plants, notably including the sizable Kips Bay Station located on the East River near Midtown Manhattan. During periods of peak demand, additional steam was sourced from the Waterside and Fourteenth Street plants operated by the New York Edison Company.
On March 8, 1954, the company merged with Consolidated Edison. Presently, Con Edison manages the world’s largest commercial steam district heating system—surpassing the combined scale of the next nine largest systems.
Steam Operations caters to over 1,700 customers—both commercial and residential—throughout Manhattan, covering areas from Battery Park up to 96th Street on the west side and reaching as far as 89th Street on the east side. Annually, millions of pounds of steam circulate through this network. Steam is generated at four plants within Manhattan and one each in Brooklyn and Queens; the principal plant is situated between 14th and 15th Streets on Manhattan’s east side. These facilities utilize water supplied by New York City’s municipal water system, making Con Edison one of the city’s major consumers of water.
Steam vapor can arise from leaks or when cooler water comes into contact with steam pipes. This vapor is frequently released through orange-and-white street funnels known as stacks. These stacks have become iconic features of New York City’s urban landscape and are often featured in television programs and movies.
Uses
Numerous buildings across New York rely on steam for both heating and cooling needs. Additionally, the system plays a vital role in maintaining humidity levels within art museums and supports steam cleaning operations in restaurants among other uses.
Environmental effects
Approximately 30% of the steam system's capacity and half of the yearly steam production at Con Edison originate from cogeneration. Both cogeneration and Heat Recovery Steam Generation (HRSG) enhance fuel utilization efficiency, which leads to a reduction in emissions such as NOx, sulfur dioxide, carbon dioxide, and particulate matter, thereby diminishing the environmental impact on the city. During summer months, Con Edison advocates for steam-powered cooling through absorption chillers, facilitating trigeneration systems that help decrease peak electricity demand and lower costs associated with electrical infrastructure.
In Manhattan, condensation vapors escaping from manholes—often referred to as "chimneys"—result from water coming into contact with steam pipes or leaks.
Since 1987, New York City has experienced no fewer than twelve steam pipe explosions. A significant incident in 2018 within the Flatiron District led to the evacuation of 49 buildings and dispersed concrete, asphalt, asbestos-laden materials, and mud into the atmosphere; subsequent cleanup efforts successfully reduced asbestos concentrations to safe levels. Other major events include explosions in 2007 and another in 1996 at a plant on East 74th Street.
In 2002, a fatal accident occurred when an individual fell into the steam system through an open manhole; this event was later documented on NYPD 24/7.
Plants
The network comprises six plants:[1]
- East 74th Street Station (located at FDR Drive)
- 60th Street Station (situated on York Ave.)
- 59th Street Station (at 11th Ave.)
- East River Station (at 14th St. and FDR Drive) (cogeneration)
- BNYCP Plant (Brooklyn Navy Yard Cogeneration Partners) (cogeneration)
- Ravenswood "A" House Steam Station (Queens) [2]
See also
- Cogeneration
- District heating
- 2007 New York City steam explosion
- Pneumatic tube mail in New York City