Bulgaria 300MW compressed air energy storage project

What is a 300MW compressed air expander?

The successful development of the 300MW compressed air expander stands as a significant milestone in domestic compressed air energy storage domain. Not only does it mark a turning point for advanced compressed air energy technology, but it also propels the nation's capabilities to unprecedented height.

What is a compressed air energy storage project?

A compressed air energy storage (CAES) project in Hubei, China, has come online, with 300MW/1,500MWh of capacity. The 5-hour duration project, called Hubei Yingchang, was built in two years with a total investment of CNY1.95 billion (US$270 million) and uses abandoned salt mines in the Yingcheng area of Hubei, China’s sixth-most populous province.

Did IET and Zhong-Chu-Guo-Neng successfully integrate a 300MW compressed air expander?

(See Figure 1) On August 1st, 2023, IET and Zhong-Chu-Guo-Neng Co. Ltd accomplished a significant feat, that is, the successful integration test of a 300MW compressed air expander.

Why do we need a 300MW advanced CAES system?

Since the advent of their partnership in 2018, both sides have taken the lead in the development of the world-first 300MW advanced CAES system. The scale-enlargement of CAES systems constitutes an important way to reduce cost, improve efficiency and enhance market competitiveness.

What is the difference between a 100MW and 300MW CAES system?

Compared with the 100MW advanced CAES system, the forthcoming 300MW system will achieve a threefold amplification in scale, notable 20%-30% reduction in unit cost and a marked 3-5% enhancement in overall efficiency.

Who developed the energy storage expander?

This expander is independently developed by the Institute of Engineering Thermophysics (IET) of the Chinese Academy of Sciences and ZHONG-CHU-GUO-NENG (BEIJING) TECHNOLOGY CO., LTD. Energy storage technology serves as the key supporting technology for energy revolution.