Abstract: The invention relates to an installation with a gas turbine, comprising: a refrigerating machine (100) comprising: a high pressure circuit (110) with a generator (114) fed by a pump (112) and subjected to a heat source; a low pressure circuit (120) with an evaporator (108) fed by an expander member (106) and forming a first cold source; and an intermediate pressure circuit (130) with an ejector (102) and a condenser (104) placed downstream from said ejector (102); a gas turbine (200) with a compressor (202) in which the air feed pipe (210) of the compressor is subjected to a cold source and the exhaust pipe (212) for the exhaust gas forms part of said heat source. The invention is applicable to producing electricity by stationary co-generation.