The U.S. Department of Energy study shows that adding energy storage facilities can increase the power generation 18650 rechargeable battery lithium 3.7v 3500mah of run-of-river power stations

The latest research from the U.S. Department of Energy shows that compared with dam-type hydropower stations, small run-of-river hydropower stations can provide the same level of stable base load and respond promptly to the changing real-time power grid and power market. Therefore, run-of-river hydropower stations can help the United States increase its renewable energy production capacity with their high power supply reliability and operational flexibility.

By adding energy storage equipment, run-of-river power stations can flexibly adjust power generation according to demand. Energy storage equipment includes:

① Battery energy storage, which has a longer power supply time than other equipment.

② Flywheel energy storage, electric energy is converted by the power converter to drive the motor to run, driving the flywheel to accelerate rotation and store energy in the form of kinetic energy; when releasing energy, the high-speed rotating flywheel drives the motor to generate electricity, and the power converter outputs the current and voltage suitable for the load to complete the conversion of mechanical energy to electrical energy.

③ Super variable capacitors can quickly fill short-term power gaps in a few seconds to a few minutes, and the charging time is short.

Using batteries and flywheels or super variable capacitors at the same time can reduce battery pressure and extend the service life of energy storage equipment. The operation of Phase 1 of the project shows that combining run-of-river power plants with energy storage systems can bring their power generation capacity to a level comparable to that of dam-type power plants.

Test results show that by adding energy storage equipment, the power generation revenue of run-of-river hydropower plants may increase by 12% to 16%. Phase 2 of the project includes black start testing of equipment to show that the technology can restore power to run-of-river power plants without a transmission system. The technology can still support microgrid operation and power important equipment in the event of a large-scale power outage at the power plant.

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