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November 5, 2021

Grand Gulf 1, US

By Carmen

Grand Gulf 1 is a 1,500MW nuclear reactor which is located within the premises of Grand Gulf Nuclear Station. It is located in Mississippi, the US. The nuclear reactor is currently generating power and is in active status. The construction on the reactor commenced in May, 1974. The first power from the reactor was achieved in Oct, 1984. Subsequent to trial runs the reactor finally entered into commercial operation in Jul, 1985.

PID Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Main Contractor
347 Nuclear 1,500 1,500 Active Mississippi, the US GE Power


Grand Gulf 1 is a Generation II nuclear reactor developed by GE Power, the main contractor for the project.

The 1,500MW reactor is operated by Entergy Nuclear. System Energy Resources and Cooperative Energy are currently owning the project having ownership stake of 90% and 10% respectively.

The BWR reactor generates 11,032.51GWh/annum of electricity. It features 800 fuel assemblies in the core of reactor, the place where fission occurs and energy is released. The project cost is $3,500m.

Development Status

The reactor construction commenced in May, 1974 and subsequently entered into commercial operation in Jul, 1985.

Contractors Involved

Framatome was selected as the steam turbine supplier for the nuclear reactor. The company provided 1 steam turbine for the project. Bechtel was selected as an architect engineer for the reactor. The reactor system was supplied by GE Power. The reactor vessel has been supplied by McDermott International. The material used for the construction of the vessel is Alloyed Steel (CST-SS-Clad). The civil works were carried out by Bechtel.

About GE Power

GE Power (GEP), formerly GE Energy, a business division of the General Electric Company, is a provider of power generation and water processing products and related services. The company product portfolio includes aero derivative and heavy-duty gas turbine systems, generators, boilers, steam turbines, air quality control systems, gas engines, reactors and water treatment, waste water treatment and process system solutions, among others. GEP offers products and technologies for generating electricity from various sources such as oil, gas, nuclear, coal, mining, diesel and water. The company also offers services for maintenance, service and upgrade of power plants; solutions for water treatment, wastewater treatment and process systems; services for distributed power generation; and support services for boiling water reactors. It caters its products and services to independent power producers and other industrial customers. GEP is headquartered in Schenectady, New York, the US


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.

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