YEIC plans to implement the Kunming Anning 350MW compressed air energy storage demonstration project with an estimated total investment of 1.872 billion yuan
The board of directors of Yunnan Energy Investment has approved the investment and construction of the 350MW compressed air energy storage demonstration project in Kunming Anning, with a total investment expected to be 1.872 billion yuan. The project aims to meet the demand for grid peak shaving and new energy grid connection, with a construction scale of 350MW/1750MWh, mainly including air compression systems, turbine power generation systems, and more. The project's equity capital accounts for 20% of the total investment, with the remaining funds raised through bank loans and other means, and the construction period is 18 months
According to the announcement from Yunnan Energy Investment (002053.SZ), the company's board of directors has approved the proposal regarding the investment and construction of the Kunming Anning 350MW compressed air energy storage demonstration project by Anning Yun Neng Investment Energy Storage Technology Co., Ltd. (referred to as "Energy Storage Company"), a wholly-owned subsidiary of the company. This project aims to meet the needs of grid peak regulation and large-scale integration and consumption of renewable energy, promote the comprehensive development and utilization of retired salt cavern resources in Kunming's salt mines, and improve the ecological development of the company's renewable energy industry. The total investment for the project is 1.872 billion yuan, with the capital contribution accounting for 20% of the total investment, while the remaining funds will be raised through bank loans and other debt financing methods.
As indicated in the announcement, the construction scale of the Kunming Anning 350MW compressed air energy storage demonstration project is 350MW/1750MWh. The main construction contents of the project include the air compression system, turbine power generation system, heat storage and exchange system, water supply system, booster station, and other systems and equipment. The ground system plans to install a 350MW-level compression and power generation system, utilizing the salt cavern bodies of wells An1 to An4 to store 1750MWh of electrical energy. The stability and reliability of the selected An1 to An4 salt caverns have been verified as feasible by the Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. The project plans to build a 220kV booster station, connecting to the Kunming 220kV Pujie Substation via a 220kV line, with the final connection scheme subject to the grid approval plan. The project intends to adopt a non-reburning compressed air energy storage technology system, which belongs to grid-side energy storage facilities, with a charging duration of 8 hours and a rated power generation duration of 5 hours, achieving an annual utilization of no less than 1300 hours. The total construction period for the project and its supporting facilities is 18 months
