METHOD FOR SUPPORTING A BLACK GRID RESTORATION BY USING A GAS TURBINE WITH SEQUENTIAL COMBUSTORS

A method for operating a gas turbine assembly for power plant, in particular a method for restoring a grid after a blackout by means a gas turbine assembly for power plant; the method comprising the steps of:a) providing a sequential gas turbine assembly comprising a in series a first combustor assembly and a second combustor assembly;b) operating the first combustor in idle/house load use until the inlet air temperature of the second combustor reaches a threshold;c) operating the second combustor in idle/house load used) switching the gas turbine assembly in consumer use