China Tidal Energy 2025 - 5MW Ocean Power Plants 13GW Coastal Potential Yellow Sea East Sea Pilot Projects

China is rapidly developing tidal energy as part of its renewable energy portfolio, with an estimated 13 GW of exploitable tidal power potential along its 18,000 km coastline. In 2025, China operates several pilot tidal power stations including the Jiangxia Tidal Power Station (3.2 MW capacity, one of Asia's largest), the Daishan tidal project in Zhejiang Province, and experimental tidal current turbines in the Pearl River estuary. This comprehensive analysis covers China's tidal energy technology development including horizontal axis tidal turbines, oscillating hydrofoils, and floating tidal platforms. Leading developers include the State Power Investment Corporation (SPIC), China Three Gorges Corporation, and the Guangzhou Energy Research Institute under CAS. China's 14th Five-Year Plan allocated $2 billion for ocean energy research, with tidal energy positioned alongside wave and ocean thermal energy conversion. The report examines tidal energy's advantages over wind and solar including predictability (tidal cycles are precisely forecastable), high energy density (water is 800x denser than air), and minimal visual impact. Key challenges include high installation costs ($15-25M per MW), biofouling, corrosion in saltwater environments, and environmental impact on marine ecosystems. China targets 500 MW of installed tidal capacity by 2030 as it works to diversify its clean energy mix beyond solar and wind power.
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