Expansion of independent power plant

Okpai Power Plant Phase II, Delta State

To support the provision of power supply in Nigeria, the Independent Power Plant (IPP) Okpai Phase II project has been initiated by the Nigerian Agip Oil Company (NAOC), to increase the plants existing power generating capacity of 480 MW by a further 450 MW to provide a total 930 MW output into the Nigerian power supply grid.

The additional power generation is provided by means of a combined cycle gas turbine plant with two gas turbine generators and one steam turbine generator located 60 km south west from Onitsha in Delta State, close to the River Niger.

Julius Berger’s scope covers piling and civil works for the power plant expansion, on a traditional basis with design responsibility by Contractor. The civil works are diverse and involve earthworks, CFA piles, instu and pre-cast concrete foundation in various sizes, duct banks, pits and roads ranging from 0.50 m3 to over 800 m3 structures. In addition, Julius Berger has been engaged for the execution for the extension to the main control building and a new fire brigade station on a design and build basis. Furthermore, Julius Berger provided the required logistics solutions, by handling the clearing, marine transport and land transport of the Plant’s Gas Turbine. This was done achieved in partnership with the company’s subsidiary, Julius Berger Services Nigeria together with Julius Berger’s own land transport fleet.

87 ha

Site clearing


Bored piles

21,500 m³

Concrete works

13,400 m

Piping works

3,200 m²

Road reconditioning

151 t

Ancillary steel works

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