How it works
Storing/Charging State
​Energy is stored in this system by pumping water into the tanked reservoir. As the water is pumped into the tanked reservoir the gasses within the chamber compress. At a set pressure, the tank will release the gasses in a controlled manner into a gas compressor which will further compress and store the gas in an external gas storage vessel. by controlling the outflow of compressed gas and incoming water from the pump the air may be compressed in part using a highly efficient isobaric process. Also because compression is performed with a hydraulic pump the efficiency is greater than a gas compressor alone starting from atmospheric pressures. Waste Heat may be captured and stored using a heat exchanger during the second stage of compression. This heat may be used during generation to preheat gasses as it blows out the tanked reservoir.
Generation
When Energy is demanded, Water from the tanked reservoir is released into the jet pump penstock. This unique penstock is designed to entrain the lower pressure water from within the upper reservoir and increase the pressure and velocity of the water in the upper reservoir. The system may also work with a regular penstock dedicated to the tanked reservoir. However this way we can increase the pressure and velocity of the water in the whole upper reservoir rather than just the water in the tanked reservoir. When releasing the pressurized water the apparent heads greater than it would be alone. This is achieved without increasing the elevation. As the water is released and the tank draws down the gasses stored in the external gas pressure vessel may be released into the tank in a controlled manner to maintain a stable pressure and therefor outflow from the tanked reservoir. This also increases the drawdown distance allowing the system to have a greater discharge and power output. This increases the power output and duration which power can be supplied.