Non-condensable gas reinjection system

A non-condensable gas reinjection system for use in a geothermal power plant, the geothermal power plant including a gas-liquid separator configured to separate geothermal fluid obtained from a production well into a first gas and a first liquid, an evaporator configured to exchange heat between the first gas and a working fluid, a turbine configured to be rotated by the working fluid discharged from the evaporator, and a condenser configured to cool the working fluid that has rotated the turbine and to condense the working fluid into a liquid, the non-condensable gas reinjection system comprising:

• a pump configured to pressurize a third liquid to be sent to a reinjection well;
• and
• an ejector configured to be driven by the third liquid, to suction a non-condensable gas contained in the first gas and remaining uncondensed in the evaporator, and to discharge a fourth liquid in which the third liquid and the non-condensable gas are mixed, wherein
• the first liquid and the fourth liquid are mixed and sent to the reinjection well.