Development of domestic air energy storage power stations

How can compressed air energy storage improve the stability of China's power grid?

The intermittent nature of renewable energy poses challenges to the stability of the existing power grid. Compressed Air Energy Storage (CAES) that stores energy in the form of high-pressure air has the potential to deal with the unstable supply of renewable energy at large scale in China.

Does government support a compressed air storage power station a good investment?

The results showed that the economic indicators of the power station have shown a good income effect, and a good level of responses to the expected risk. The government support had an important role on the improvement of financial income level and anti-risk capability of in developing compressed air storage power.

How energy storage power stations are being built?

In terms of installed capacity, new energy storage power stations are now being built in a more centralized way and large scale with longer storage duration period, said the administration.

What are independent energy storage stations?

Independent energy storage stations are a future trend among generators and grids in developing energy storage projects. They can be monitored and scheduled by power grids when connected to automated scheduling systems and meet the relevant standards, regulations and requirements applicable to power market entities.

How many electrochemical storage stations are there in 2022?

In 2022, 194 electrochemical storage stations were put into operation, with a total stored energy of 7.9GWh. These accounted for 60.2% of the total energy stored by stations in operation, a year-on-year increase of 176% (Figure 4).

What is compressed air energy storage?

Compressed air energy storage is derived from gas turbine technology, and the concept of using compressed air to store electric energy dates back to the 1940s . The principle of a traditional CAES plant is described as follows (Fig. 1 a).