Compressed air energy storage project implementation plan

What is compressed air energy storage (CAES)?

Among the different ES technologies, compressed air energy storage (CAES) can store tens to hundreds of MW of power capacity for long-term applications and utility-scale. The increasing need for large-scale ES has led to the rising interest and development of CAES projects.

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.

What is compressed air energy storage project?

Compressed Air Energy Storage Project •Integrate intermittent renewables •Store off-peak energy •Provide ancillary services •Manage peak demand •Relieve grid congestion •Use porous rock reservoir 300 MW, up to 10 hours storage*

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 are the main components of a compressed air system?

The largest component in such systems is the storage medium for the compressed air. This means that higher pressure storage enables reduced volume and higher energy density.

Can a 10 MW gas pipeline be used for high-pressure air storage?

In 2016, the IET of Chinese Academy of Sciences developed a 10 MW integrated test and validation platform for CAES, where the gas pipeline was adopted for high-pressure air storage (Fig. 9). It has a maximum energy storage capacity of 40 MWh, a power measurement range of 0–10 MW, and a pressure measurement range of 0–10 MPa.