The Mostaganem power station is expected to commence operations in 2022. Image courtesy of Transmex.
The 1,450MW gas-fired combined-cycle power project is located in the Mostaganem province of Algeria. Image courtesy of Sonelgaz.
The main construction works on the project were started in 2018. Image courtesy of Keller Group.

The Mostaganem power project is a 1,450MW combined cycle gas-fired power station under construction in the Mostaganem province of Algeria. Societe Algerienne de Production d’Electricite (SPE), a subsidiary of Algeria’s state-owned utility Sonelgaz, is the owner and developer of the project.

Mostaganem is one of the six new combined-cycle power projects that Sonelgaz decided to develop with an estimated investment of £2.4bn ($4bn) in 2013. The new plants, with a combined generating capacity of 8GW, were intended to meet the growing electricity demand in the North African country.

While the key contracts were awarded in 2013 and 2014, the main construction works on the Mostaganem power project were started in 2018.

With the two power transformers installed at the site in August 2021, the combined-cycle power station is now expected to commence operations in early 2022.

Location and site details

The Mostaganem gas-fired combined-cycle power station is being built on a 40ha-site, approximately 10km away from the Port of Mostaganem in northern Algeria.

Mostaganem combined-cycle power plant make-up

The Mostaganem gas-fired power project will comprise two combined-cycle blocks, each equipped with two General Electric (GE) 9F 3-series gas turbines, one steam turbine, and two heat recovery steam generators (HRSGs) along with other associated facilities.

The gas turbines feature dry low NOx (DLN) dual-fuel combustion technology to reduce emissions.

The project also includes the construction of gas storage facilities, cooling towers, and electrical substations.

Gas supply to the Mostaganem power station

The Mostaganem combined-cycle power plant will receive gas from Societe Algerienne de Gestion du Reseau de Transport du Gaz (GRTG) through a 43km-long and 28in-diameter natural gas pipeline constructed by Kanaghaz.

Contractors involved in the Algerian gas-fired power project

GE was awarded a lump sum contract to supply gas and steam turbines along with generators for six combined-cycle power plants including Mostaganem in September 2013.

Samsung C&T Corporation, an engineering and construction company based in South Korea, was awarded an engineering, procurement, and construction (EPC) contract worth £821m ($1.37bn) by SPE for the Mostaganem as well as the 1.1GW Naama power plant in February 2014.

Inerga, a subsidiary of Sonelgaz, was engaged in the civil engineering works, while Keller Group, a geotechnical specialist based in London, UK, received a £28m ($38m) contract for ground engineering and foundation works of the project in April 2018.

Subcontractors and suppliers involved in the Mostaganem power project

TML Insaat, a construction company based in Turkey, was subcontracted by Samsung C&T for the associated marine works of the project in 2017.

TML Insaat further subcontracted BDI Marine Contracting Agency for the installation of high-density polyethylene (HDPE) concrete collar blocks and precast intake heads, as well as five HDPE water intake pipes along with flange connections for the project’s water intake structure.

GoFast Freight Forwarding, a logistics company based in France, and Transmex, a subsidiary of Sonelgaz, were hired to transport heavy equipment including turbines, generators and transformers to the project site.

STX Engine, an engine equipment manufacturing company based in South Korea, was subcontracted by Samsung C&T to supply seven 2,000kW black start diesel generators (BSDG) for the Mostaganem gas-fired power plant in 2016.

Groupe Chakour, a local construction company, provided cranes on rent for the project construction.

Ankug Engineering, a consulting company based in South Korea, was engaged in fire protection and safety assessment for the project in 2014, while Fleischmann Consult performed topographic and bathymetric surveys for the project.