A geothermal power plant system for producing electricity and process heat at least one compressed gas storage device and at least one gas compression device connected to the at least one compressed gas storage device. At least one gas utilization device is connected to the at least one compressed gas storage device. At least one device for utilizing renewable energy such as of solar energy, wind energy, hydropower, ocean thermal energy, ocean waves, ocean current and tidal current, ambient heat or cold is provided.