# China offshore wind transmission development > Live situation record from CLSTR: https://clstr.news/situations/china-offshore-wind-transmission-development > Updated: 2026-07-29T04:36:09.000Z. Sources: 7. Developments: 3. In late June 2026 Orient Cable delivered a 66 kV dynamic subsea cable for the 16 MW Sanxia Linghang floating‑wind demonstration platform, the first such cable in China. In July 2026 China Three Gorges launched a world‑record ±500 kV offshore DC converter station, dubbed “sea heart”, about 100 km off Yangjiang, connected by an 88.8 km flexible‑current cable and a 180 km on‑shore line, projected to supply roughly 60 billion kWh of clean power annually to the Guangdong‑Hong Kong‑Macau Greater Bay Area. By 29 July 2026 the facility—now referred to as the “Heart of Offshore Wind”—entered its final submarine‑cable linking and joint testing phase. The 2‑GW, 500‑kV station will collect electricity from 163 offshore turbines, convert 66 kV AC to 500 kV DC, and is expected to deliver about six terawatt‑hours of renewable electricity each year, cementing China’s high‑capacity deep‑sea transmission roadmap. ## Timeline ### 2026-07-29: China installs world's largest offshore wind converter station China has installed the world’s largest offshore wind converter station, “Heart of Offshore Wind”, near Yangjiang in Guangdong. The 500 kV, 2 GW facility will supply about 6 TWh of clean power annually to the > 2 sources. https://clstr.news/cluster/china-installs-worlds-largest-offshore-wind-converter-station ### 2026-07-24: China installs world‑record ±500 kV offshore DC converter, powering 60 billion kWh to the Greater Bay Area China completed the world's highest‑voltage ±500 kV offshore DC converter, linking a deep‑sea wind farm to the Guangdong Bay Area and set to deliver 60 billion kWh of clean power annually. 2 sources. https://clstr.news/cluster/china-installs-worldrecord-500-kv-offshore-dc-converter-powering-60-billion-kwh-to-the-greater-bay-a ### 2026-06-26: Orient Cable installs China's first 66 kV dynamic cable for floating wind Orient Cable installed China's first 66 kV dynamic subsea cable for CTG's 16 MW floating wind demo platform off Guangdong, a milestone for offshore wind technology. 2 sources. https://clstr.news/cluster/orient-cable-installs-chinas-first-66-kv-dynamic-cable-for-floating-wind --- Cite as: China offshore wind transmission development. CLSTR, https://clstr.news/situations/china-offshore-wind-transmission-development