In 2021, the national RD&D focused on building the multi-energy complementary clean energy bases, including the integration development of wind, solar, hydro, ocean energy, clean coal-fired plants, grid, load, and energy storage projects, nine clean energy bases, five offshore wind power bases and several transmission channels, the new type of wind turbines and key components, and medium voltage, direct current, low-frequency technologies, etc.
2021 is the first year of the “14th Five Year Plan” development. The relevant RD&D actions had made achievements, which were invested by the developers, manufacturers, and research bodies though the national budget has not been released yet.
In 2021, the first 5.5MW floating wind project put into operation, the floating platform called “Fuyao” for a 6.2MW floating wind turbine was off the production line, the 16MW offshore wind turbine passed the concept design assessment by the accredited third party, and the largest onshore wind turbines of 6.25MW were connected to the grid in batches. The longest blade of 102m had finished the static test and fatigue test, which will be applied to the 10MW wind turbines. The offshore wind farm installed 100 wind turbines and firstly used a 400kV VSC-HVDC system that was put into operation in Rudong, Jiangsu. Yangzhou University, NUAA, Gold Wind, MYwind, Chinawindey, Shanghai Electric, and CGC jointly take part in the research on low noise wind turbine technology, including improvement of the wind turbine aerodynamic noise source model, development of PE noise propagation models in complex terrain, research of coupling method of PE model and CFD in complex terrain and so on.