On December 16, the world’s largest integrated green hydrogen-ammonia-methanol integrated project, also known as the CEEC Songyuan Hydrogen Energy Industrial Park (Green Hydrogen-Ammonia-Methanol Integration) Phase I project, officially went into operation in Songyuan City, Jilin Province. Built and invested by China Energy Engineering Group Co., Ltd., the project relies on Guangxi Liuzhou Special Transformer Co., Ltd., as a core electrical equipment supplier. Leveraging its years of deep expertise in the transformer industry, the company integrated top-tier technical resources to custom-design and deliver 16 sets of single-unit 48-pulse voltage-regulating rectifier transformers, paired with 32 sets of 1,000 m³ electrolyzers, providing the “power heart” for the project.

It is reported that the project has achieved a breakthrough in four world-leading technologies, most notably the precise matching of wind, solar, storage and hydrogen-ammonia-methanol. Building on these innovations, it has given rise to the “Qingqing No. 1”, an independently developed, all-in-one green hydrogen solution. This solution offers a viable path to lowering the cost of green hydrogen and expanding the global market for clean energy, opening new avenues for the large-scale development of China’s green hydrogen industry.

A representative from Guangxi Liuzhou Special Transformer Co., Ltd. noted that the project set extremely high standards for the performance, safety, and reliability of core electrical equipment. In response, the company delivered 16 sets of rectifier transformers that represent a major step forward in design philosophy and process innovation. Key breakthroughs were made in critical processes and core technologies, where the company integrated multiple cutting-edge technologies and its own intellectual property. For instance, the company, for the first time, incorporated a double-split voltage-regulating auto-transformer and two conjugate rectifier transformers into a single oil tank—an innovation that balances compact design with system coordination. These custom-built rectifier transformers serve as a vital power hub for the water electrolysis system. By enhancing power quality, reducing grid interference, and improving hydrogen production efficiency, they inject key momentum into large-scale, low-cost green hydrogen production, steering the industry toward efficiency, intelligence, and sustainability while backing the nation’s clean energy push.