The firm, which was yesterday told it was being promoted back into the FTSE 100 index, will complete the installation of the turbine before next summer and will then carry out maintenance work.
NRG Energy plans to eventually convert the power station into a carbon capture and storage project.
Jim McGlothlin, president of power solutions at Wood Group’s gas turbine services division, said: “We are pleased to be working with NRG on this exciting project, which leverages the combined strengths of our engineering, procurement, construction and maintenance support services, and our management of fast-track projects.”
David Greeson, commercial vice president at NRG Energy-subsidiary Petra Nova, added: “Their gas turbine experience makes Wood Group GTS well suited to the demands of the project. We are looking forward to working with their team.”