Siemens Energy has secured a $1.6bn project to supply essential technologies for the Rumah 2 and Nairyah 2 gas-powered power stations in Saudi Arabia.
Situated in the western and central regions, the plants will contribute 3.6GW of power to the national grid, enough to supply 1.5 million homes.
Harbin Electric International is acting as the engineering, procurement and construction contractor for the project, which encompasses extended maintenance agreements to uphold the plants’ operational reliability up to 2049.
Key components for the power plants will be produced at the Siemens Energy Dammam hub, which is currently undergoing expansion to boost local production capacity and support Saudi Arabia’s energy sector.
Rumah 2 and Nairyah 2 will be among the largest combined-cycle power stations worldwide, replacing old oil-powered plants and lowering CO₂ emissions by as much as 60% in comparison to traditional oil-driven electricity generation.
The power plants have been designed to accommodate advanced CO₂ capture and storage technologies, supporting Saudi Arabia’s long-term emission reduction targets.
They will connect to the grid in simple cycle mode in 2027, transitioning to full combined-cycle operation the following year.
Siemens Energy’s scope of supply includes six SGT6-9000HL gas turbines, four SST6-5000 steam turbines, eight SGen6-3000W generators, two SGen6-2000P generators and auxiliary equipment, with each site generating 1.8GW of electricity.
This order strengthens Siemens Energy’s position in Saudi Arabia’s independent power producer market.
Siemens Energy Middle East gas services sales head Ahmed ElSerry stated: “Supplying key technologies for the Rumah 2 and Nairyah 2 power plants directly supports Saudi Arabia’s energy transition and its goal of achieving net zero emissions by 2060.
“By manufacturing critical components at our Siemens Energy Dammam hub, this project further strengthens local production capabilities and builds expertise within the Kingdom, contributing to a more resilient energy sector.”
In March 2025, Siemens Energy was selected by Rolls-Royce to support a small modular nuclear reactor project.
