On July 7, 2025, a milestone progress was made in the field of energy storage - the underground energy storage technology independently developed by Zhejiang Wocheng New Energy Co., Ltd. passed the energy storage professional evaluation of the China Electrotechnical Society and started construction. This project fills multiple key technological gaps and marks the official entry of China's energy storage industry into the 3.0 stage centered on intrinsic safety and intelligent innovation.

According to the CNESA DataLink global energy storage database, as of the end of 2024, the cumulative installed capacity of power storage projects that have been put into operation worldwide has reached 372.0GW. With the rapid development of the industry, the drawbacks of traditional ground energy storage power stations are becoming increasingly prominent, with frequent fire accidents posing a serious threat to battery safety, economic benefits, and public safety. In this context, Zhejiang Wocheng New Energy Co., Ltd. has launched the underground energy storage system "Starlight", which provides a new solution for the industry.

Technological breakthroughs reshape industry standards in five dimensions

Zhejiang Wocheng New Energy Co., Ltd. is driven by technological innovation and has established a team of senior experts with an average annual investment of over 10 million yuan in research and development. It has formed a full industry chain system covering research and development, production, marketing, and services. The "Starlight" system that has been implemented this time has a storage capacity of 522 kWh, an underground area of only 40 square meters, a conversion efficiency of up to 98%, and is not affected by seasonal environments. After backfilling, the ground can be greened or hardened to achieve 100% efficient utilization of land resources. This system addresses the pain points of traditional energy storage products arranged outdoors, achieving significant breakthroughs in five dimensions: intrinsic safety, space utilization, intelligent control, low temperature tolerance, and energy efficiency improvement, providing industrial and commercial users with safer and more efficient low-carbon energy solutions.

Policy led development layout in the global market

Under the guidance of carbon peak and carbon neutrality targets, China is accelerating the research and development of green energy storage technologies. In February 2025, eight national departments jointly issued the "Action Plan for High Quality Development of New Energy Storage Manufacturing Industry", which clearly stated that by 2027, China's new energy storage manufacturing industry will be built into a global leading industry. Zhejiang Wocheng New Energy Co., Ltd. actively responds to national strategies and currently holds more than 20 exclusive patents and over 100 core technologies, with an annual production capacity of 5GWh/16ppm. Its products achieve real-time data monitoring through over 300 intelligent sensors and have obtained multiple international authoritative certifications. The company plans to build 20 intelligent production lines by 2030, achieve an annual production capacity of 100 GWh, and implement 1000 zero carbon park projects worldwide, with an expected cumulative carbon reduction of over 100 million tons, contributing Chinese wisdom to the global energy transition.

The successful implementation of this underground energy storage project not only demonstrates the technical strength of Zhejiang Wocheng New Energy Co., Ltd., but also provides a demonstration model for building a new energy storage system that integrates safety, economy, and ecology, marking the official entry of China's energy storage industry into a new stage of high-quality development. (This article is from the official website of Jian Dao www.seetao.com. Reproduction without permission is prohibited, otherwise it will be prosecuted. Please indicate Jian Dao website+original link when reprinting.) Jian Dao website mechanical equipment column editor/Yang Beihua