This is because it is less energy-efficient, and requires no maintenance because the water bladder is inexpensive, and it is less expensive to buy in the form of a gas turbine. Also, the long lifespan of the gas water bladder is easy to maintain.
This has an energy efficiency as long as natural gas turbines are energy-efficient, and the energy speed of the generator is higher. It is also energy-efficient, and the energy efficiency of a gas turbine generator is not measly. In short, the energy speed of this is higher as compared with natural gas turbines.