State Grid Jiangsu Electric Power has reported that, as of the end of 2025, Jiangsu's offshore wind power capacity connected to the provincial grid had reached 13.49GW, the highest level among China's provinces. This capacity is expected to supply more than 30 billion kilowatt-hours of renewable electricity annually to the Yangtze River Delta region, equivalent to an annual reduction of more than 22 million tonnes (mt) of carbon dioxide emissions.
Jiangsu has now established a mature and comprehensive offshore wind power (OWP) development framework spanning intertidal zones, nearshore waters and far-offshore areas – with continued expansion across the sector, including Yancheng, a city that is home to the country's largest OWP industrial cluster.
Jiangsu's OWP grid-connection capabilities have developed in parallel, with the commissioning of the nation's first 110-kilovolt (kV) and 220kV offshore booster stations, as well as the country's largest OWP grid-connection transmission facility.
Once aggregated, Jiangsu's OWP is transmitted to major load centres in the Yangtze River Delta via six high-capacity cross-river transmission corridors within the province. During the 15th Five-Year Plan the province’s aim is to progress the planning and construction of key infrastructure including the Sutong GIL DC link and the third phase of the Yangzhou-Zhenjiang DC project.
Looking nationwide, China's cumulative OWP installed capacity has been ranked first globally for four consecutive years. By the end of the Five-Year Plan, the country's total OWP capacity is expected to exceed 100 million kilowatts.
