Siemens Energy has secured a contract, worth $1.6bn, to supply essential technologies for two new gas-fired power plants, Rumah 2 and Nairyah 2, in Saudi Arabia. Harbin Electric International is associated with the project as the engineering, procurement, and construction (EPC) contractor.

Rumah 2 and Nairyah 2 plants, located in the country’s western and central regions, will add 3.6GW to the national grid. This increase in capacity is expected to provide energy to approximately 1.5 million homes.

The project, which encompasses long-term maintenance agreements, aims to ensure the operational reliability of the power plants for the next 25 years.

The manufacturing of core components for Rumah 2 and Nairyah 2 will take place at the Siemens Energy Dammam Hub, which is undergoing expansion to enhance local production capabilities and further support the Saudi energy sector.

These new plants are poised to be among the largest combined-cycle power plants in the world, with a design that facilitates future integration of CO2 capture and storage technologies. By replacing older oil-fired stations, the new facilities are projected to cut CO2 emissions by up to 60% compared to conventional oil-based power generation, aligning with Saudi Arabia’s ambitions to reduce long-term emissions.

The equipment supplied by Siemens Energy will include six SGT6-9000HL gas turbines, four SST6-5000 steam turbines, eight SGen6-3000W generators, two SGen6-2000P generators and other auxiliary equipment. Each plant will have a generation capacity of around 1.8GW.

Siemens Middle East Gas Services Sales head Ahmed ElSerry said: “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.”

The order cements Siemens Energy’s role in the Saudi Independent Power Producer (IPP) market and builds on the company’s previous successes in the region, such as the Taiba 2 and Qassim 2 projects, which collectively contribute 4GW to the national grid.

The integration of Rumah 2 and Nairyah 2 into the Saudi grid is scheduled to commence in simple cycle mode in 2027, with the transition to full combined-cycle operations expected by the following year.

Recently, Rolls-Royce SMR selected Siemens Energy as its exclusive partner for turbine systems in the development of small modular reactors (SMR).