GDF Suez Energy North America, a unit of GDF Suez SA (GSZ.FR), has awarded Alstom SA (ALO.FR) a long-term service contract to give its power plant fleet new flexibility, for EUR360 million or $480 million.

MAIN FACTS:

- Alstom will provide comprehensive maintenance services and gas turbine upgrade packages for four GDF Suez natural gas-fired power stations.

- The plants together use fourteen Alstom GT24 gas turbines and generate enough electricity to power more than three million homes in Texas and Massachusetts .

- Alstom's responsibilities for the Midlothian and Hays plants in Texas , and Bellingham and Blackstone power plants in Massachusetts include management and provision of replacement parts, technical field advisors and gas turbine services for their fourteen power generating units over the life of the contract.

- The first upgrade installation is scheduled for the fall of 2014.

- Alstom will upgrade the turbines with features enabling plant operators to switch between operating modes based on electricity market demand without taking the plant offline.