National energy air energy storage

What is new energy storage?

New energy storage refers to electricity storage processes that use electrochemical, compressed air, flywheel and supercapacitor systems but not pumped hydro, which uses water stored behind dams to generate electricity when needed.

Will China's first large-scale compressed air energy storage project be commercialized?

A state-backed consortium is constructing China’s first large-scale compressed air energy storage (CAES) project using a fully artificial underground cavern, marking a major step in the technology’s commercialization.

What is Xinyang air storage?

Designated as a pilot project under China’s National Energy Administration’s new energy storage initiative, the Xinyang facility pioneers an innovative air-sealing approach for artificial underground storage, offering a significant boost to the commercialization of CAES technology in China.

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).

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.

Is underground air storage a viable energy storage option?

Underground air storage is a large-scale energy storage option with relatively low cost (Table 3). The two existing commercial CAES plants, the Huntorf plant the McIntosh plant, both use underground salt cavern for energy storage.