The 25-year contract has been signed with Umm Al Houl Power, a company formed by Qatar Electricity and Water Company (QWEC), Qatar Petroleum (QP), Qatar Foundation (QF) and K1 Energy. K1 Energy is a joint venture of Mitsubishi and TEPCO & Fuel Power.
Under the contract, Siemens will provide services for the plant's six SGT5-4000F gas turbines, four SST5-4000 steam turbines, 10 SGen5-1200A generators including instrumentation and controls.
The service agreement is intended to enhance the operating capabilities, flexibility and profitability of the Umm Al Houl power plant.
Siemens Power Generation Services, Power and Gas CEO Tim Holt said: "Supported by our highly experienced technical experts, our strong presence in the region and in close collaboration with our customer, our advanced services and maintenance solutions will help ensure this important new power plant operates reliably for many years to come."
Siemens will implement new service solutions through preventative maintenance, shortened lead times and on-site technical field assistance for the power plant.
Planned to be built in the Umm al Houl Economic Zone in the south of the country, the facility will feature two power blocks, each in a 3+2 configuration.
Each of the blocks includes three gas turbines which will be used to generate the steam to drive two downstream steam turbines.
The power plant, which also has a capacity up to 136 million imperial gallons of drinking water per day, is expected to account for almost one quarter of the nation's installed power generating capacity.
The first phase of the project is scheduled to be completed in for 2017 while the entire complex is due to enter service in mid-2018.