Under the terms of the contract, Alstom will modernize the existing units by adding new technology based on its ALSPA Series 6 control system.
The first retrofitted unit will be deployed in 2015.
EDF’s 20 power plants, which have a total capacity of 1,300MW, were equipped with Alstom control system during the construction phase.
Alstom Thermal Power has been the servicing the units since installation.
Controbloc N20 is a control system for power plants; operators can improve control with various sensors across the plant that monitors components such as actuators of pumps, valves, engines and electrical units.
Alstom Power Automation & Controls vice president Dominique Llonch said, "This contract is a clear sign on how Alstom can both maintain its equipment on the long range and adapt to the new operational needs by providing its latest technologies."