[Haichuan Tea House] The hydropower station pumps water to store energy. It generates electricity during the day and pumps the water up at night. Is it okay?
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I have seen that pumped storage power stations are being built in many places to support thermal power. They generate electricity at peak times and pump water to reservoirs at low times. Is this the same for hydropower stations?
I heard that there is a situation where the power consumption is low at night, so the power is pumped back and regenerated.
Thermal power stations, most of which use pumped storage for peak load regulation in Jiangsu and Zhejiang areas
Regarding efficiency, pumped storage power stations require high pressure heads. Yesterday on the plane to Guangzhou, I saw a reservoir built on the top of a mountain. It should be
CCTV has a program that introduces the research and application of new energy. In addition to developing new energy, peak-shifting energy storage is also a key point. This idea is of practical significance, not necessarily hydropower, but more suitable for solar and wind energy applications. China has a project in Dubai that uses solar power to pump water to high levels and shift peaks to fill valleys. There is also a more clever idea, which is to establish a mobile storage and discharge system, set up an intelligent charging and discharging network, and use the batteries of electric vehicles to charge at peak points and discharge at valley points. Carbon peaking, carbon neutrality, and green energy require these supports.
I have a question. When the hydropower station pumps water back at night, does it need to be waterproof again to generate electricity?
If electricity is generated and not used, it is wasted. It is better to convert it into gravitational potential energy and use it when needed, which is equivalent to a battery.
Hydropower is built on rivers and should not be used. The dams should be built higher to increase redundancy and install more units. During the day, more water is released to generate electricity, and at night, more water is stored and less power is generated. In other words, our local water and electricity are not available locally and are sent to other provinces for use at high voltage. It is more appropriate to solve this problem through overall coordination of high-voltage power transmission and distribution.