Data storage mechanism analysis of pumped storage power stations based on block chain

China is actively promoting the development of renewable energy sources such as wind power and photovoltaic to achieve the goal of "carbon neutrality and carbon peaking". However, renewable energy sources such as wind and solar power have the characteristics of randomness and volatility, leading to a continuous decline in the safe and stable operation level of China's power system. There is an urgent need to equip a large number of reliable and flexible regulatory resources. Among the existing flexible regulation resources, pumped storage power stations are currently the most mature, reliable, and construction-effective large-scale energy storage power sources. They can provide peak shaving, frequency regulation, and other services, as well as undertake emergency backup for power grid accidents, improving the safe and stable operation level of the power grid. Especially, pumped storage power plants have a second level response speed, which can provide a large amount of flexible and reliable regulation capacity for wind power plants, storing excess energy generated by wind power instantaneously, and effectively avoiding waste of wind power resources. Blockchain is a chain composed of blocks one after another. Each block stores a certain amount of information, which is connected into a chain in the chronological order of their respective generation. Therefore, tampering with information in the blockchain is extremely difficult. Compared to traditional networks, blockchain has two core characteristics: first, data is difficult to tamper with, and second, decentralization. Based on these two characteristics, the information recorded by blockchain is more authentic and reliable, which can help solve the problem of people's mutual distrust.