Hitachi Energy has supplied its 69 kV HiDry dry-type transformers to support a major offshore wind power project developed by China Huaneng Group at the North L Site, off the coast of the Shandong Peninsula, China. The offshore wind farm, currently China's deepest with over 50 meters water depth, boasts a total capacity of 504 MW and plans to deploy 42 turbines rated at 12 MW each.

The HiDry dry-type transformer offers a fully oil-free design, reducing risks of oil leaks and fire hazards, while improving environmental safety and reliability under harsh offshore conditions. Its compact build, corrosion resistance, and vibration tolerance make it well-suited for turbine integration. Additionally, its oil-free design lowers maintenance requirements and costs.

The transformer supports the integration of the wind farm's electricity into the grid at 69 kV, aligning with the growing demand for higher voltage offshore wind solutions in China that enable larger turbines and more efficient power collection.

Zhang Jianhua, Senior Vice President of China and Head of Greater China Transformers at Hitachi Energy, emphasized the company's role in advancing carbon neutrality goals by providing innovative and safe transformer solutions to enhance offshore wind power projects.

China's offshore wind capacity continues rapid expansion as part of its "14th Five-Year Plan," targeting major wind power bases across several coastal regions. The North L site alone is expected to generate approximately 1.7 billion kWh annually, enough to power about 1.59 million residents.