Tihange 1 is a 1,009MW nuclear reactor which is located within the premises of Tihange Nuclear Power Plant. It is located in Liege, Belgium. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the nuclear reactor is currently generating power and is in active status. The construction on the reactor commenced in Jun, 1970. The first power from the reactor was achieved in Mar, 1975. Subsequent to trial runs the reactor finally entered into commercial operation in Oct, 1975. Buy the profile here.

Smarter leaders trust GlobalData


Data Insights Tihange 1

Buy the Profile

Data Insights

The gold standard of business intelligence.

Find out more


Tihange 1 is a Generation II nuclear reactor developed by Alstom ACEC Energie, John Cockerill Group and Westinghouse Electric, are the main contractors for the project.

The 1,009MW reactor is operated by Electrabel. The project is co-owned by EDF Belgium and Electrabel, with their respective ownership stake of 50% each.

The PWR reactor generates 8,384.09GWh/annum of electricity. It features 157 fuel assemblies in the core of reactor, the place where fission occurs and energy is released. Safety contol rods that are used to control the fission rate in the reactor are 12 in number.

Development status

The reactor construction commenced in Jun, 1970 and subsequently entered into commercial operation in Oct, 1975.

Contractors involved

GE Power was selected as the steam turbine supplier for the nuclear reactor. The company provided 2 steam turbines for the project. Tractebel Engineering was selected as an architect engineer for the reactor. The reactor system was supplied by Westinghouse Electric Co LLC, John Cockerill Group, Alstom ACEC Energie SA, Framatome SAS and Creusot-Loire. The reactor vessel have been supplied by Westinghouse Electric Co LLC, John Cockerill Group, Alstom ACEC Energie SA, Framatome SAS and Creusot-Loire. The material used for the construction of the vessel is Alloyed Steel (1.2MD07A). The civil works were carried out by Pieux Frapki Engema Francois Delens (AMGC).

For more details on Tihange 1, buy the profile here.

About Alstom ACEC Energie

Alstom ACEC Energie SA (Alstom ACEC) is a Belgium based electrical equipment manufacturer. The company is engaged in designing, manufacturing, maintenance and repair of devices, machinery and units of mechanical, hydraulic and nuclear systems. Alstom ACEC provides services for a range of technologies for steam turbine, gas turbine, combined cycle, and hydro power plants. The company also provides maintenance services for heat exchangers and balance of plant, instrumentation and control, electrical equipment, air pollution control systems, environmental equipment, thermal, hydroelectric, and nuclear power plants. Alstom ACEC is an operating subsidiary of ALSTOM Belgium S.A. The company is headquartered in Marchienne-au-Pont, Belgium.

About John Cockerill Group

John Cockerill Group (John Cockerill), formerly CMI Group, designs and manufactures large-scale technological solutions. The company develops heat recovery steam generators, thermo-solar power plant boilers, industrial boilers, weapon systems, simulators, security, and safety technologies. It also offers reheating furnaces, pickling solutions, rolling mills, strip processing lines, automation and process control systems; heat, water and waste treatment solutions. John Cockerill provides welding, lifting, training, on-site machining, electricity, automation and instrumentation, spare parts management, installation maintenance, project management, and other related services. The company serves energy, defense, industry, environment, transport, and infrastructures sectors. John Cockerill is headquartered in Seraing, Belgium.

About Westinghouse Electric

Westinghouse Electric Co LLC (Westinghouse) a subsidiary of Toshiba Corporation, is a nuclear energy company. It offers nuclear plant products, technologies, nuclear fuel, plant design and related services to utilities across the world. The company carries out development, licensing, detailed engineering, project management, component manufacturing and offers startup support for new nuclear plants. It provides a comprehensive range of nuclear fuel and operating plant products and services; and decontamination and decommissioning, and waste management services. It operates through regional offices in the Americas, Asia, Europe, the Middle East and Africa. Westinghouse is headquartered in Cranberry Township, Pennsylvania, the US.

This content was updated on 22 April 2024

Data Insights


The gold standard of business intelligence.

Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Power Intelligence Center, which provides detailed profiles of over 170,000 active, planned and under construction power plants worldwide from announcement through to operation across all technologies and countries worldwide.