OPERATION OF A GAS TURBINE TO LOWER LOAD AND MEL

Method of operating a gas turbine (GT), wherein a compressor for the gas turbine (GT) has adjustable guide vanes (IGV) at the inlet of the compressor, wherein the compressed air by the compressor is mixed with fuel in order to burn the mixture inside a combustor, wherein the addition of fuel has a given fuel rate, wherein the gas tur (GT) is controlled from a high load to a given house load (HL), wherein at a first step the adjustable guide vanes (IGV) are continuously closing and the fuel rate is also accordingly reduced and wherein then in a second and final step starting at a turning point (TP) the adjustable guide vanes (IGV) are not further closed, but wherein the fuel rate is further reduced until the given house load (HL) is reached, so that a given exhaust flow is maintained.