Hailanyun Technology

Shanghai Hailanyun Technology Co, Ltd ("HAILANYUN") is a high-tech start-up founded by the Highlander Group that specializes in the R&D, manufacturing, and operation of underwater data centers. As the first underwater data center services provider in China, we excel at Underwater Data Center and IT services thanks to excellent industrial integration capabilities. An Underwater Data Center ("UDC") consists of a shore station, sea cables, as well as water-cooled subsea components including substations and data modules. Our system features excellent PUE (PUE <1.15), efficient modular construction (24 rakes per module), maintenance free, and rapid deployment times(within 90 days). Deploying data centers underwater also increases equipment reliability while minimizing land footprint. The UDC concept was first pioneered by Microsoft, with their tests revealing a server failure rate one-eighth that of traditional IDCs in land. Then, from 2020 to 2021, Highlander completed energy efficiency, environmental, and networking approvals/tests in Zhuhai and Haikou, further verifying the eco-friendliness, stability, and feasibility. In 2022 HAILANYUN has put into operated the world's first commercial underwater data center and launched the 'UDC + Offshore Wind Power' R&D initiative. In 2023 a government delegation from Shanghai Lingang conducted research in Hainan, while HAILANYUN prepared for its Shanghai project during the same period. In 2024 HAILANYUN has launched an Underwater Intelligent Computing Cloud. In 2025 the world's first 'UDC + Offshore Wind Power' project was selected as a national “Green and Low-Carbon Advanced Technology Demonstration Project” when it was signed in Shanghai's Lingang area.