Hitachi Energy has delivered rectifier transformers for electrolytic H₂ to a H₂ industry park built by China Energy Engineering Corporation (CEEC) in Songyuan, a city in northeast China. The transformer solution helps ensure a reliable power supply for H₂ production from renewable energy, contributing to a sustainable energy future.

China is the world's largest H₂ producer, listing H₂ as a core part of its national energy strategy. It is pushing to replace fossil fuels with H₂ in industries and promoting green ammonia and methanol production by using H₂. In late 2024, China released a plan to speed up clean H₂ use in industry, providing clear steps for lowering carbon emissions and upgrading the sector.

The H₂ energy project developed by CEEC is one of China’s largest green H₂-ammonia-methanol integrated projects globally. The project plans to build a 3-gigawatt (GW) new energy facility in phases using wind and solar power to produce H₂ through water electrolysis. It then synthesizes ammonia and methanol from green H₂ to achieve an integrated development of the entire value chain from clean electricity to H₂, ammonia, and methanol.

In water electrolysis for H₂ production, the rectifier transformer is a key device that enables stable power supply and improves production efficiency. Hitachi Energy's transformer features a compact structure, low losses, and high stability. It provides excellent harmonic resistance and current impact resistance, ensuring safe, reliable, and cost-effective H₂ production.

Hitachi Energy has nearly 80 years of experience in the research, development, and manufacturing of rectifier transformers. The solutions are widely used in metallurgy, alkali production, cement, chemical engineering, and H₂ production.

“Green H₂ serves as a key carrier for deep decarbonization in industry, effectively reducing reliance on fossil fuels and cutting carbon emissions,” said Zhang Jianhua, Senior Vice President of China, Head of Greater China Hub Business Unit Transformers, Hitachi Energy.

“With our innovative transformer technology, we're pleased to support our customers in building integrated projects of renewables, H₂, ammonia, and alcohol and jointly driving the growth of H₂-based clean energy and the process of the energy transition.”

The project is among the first batch of low-carbon technology demonstration projects by China's National Development and Reform Commission. It is also a key project of Jilin Province's "H₂ Powering Jilin" initiative. It is expected to produce 800,000 tpy of green synthetic ammonia and methanol.