In Huanan County, Jiamusi, Heilongjiang Province, a wind farm with a total installed capacity of 1.2 million kilowatts (1.2 gigawatts) is about to be built. Unlike ordinary wind farms, the electricity generated by the wind turbines here is not integrated into the national power grid, but is directly supplied to their own hydrogen production plants through the "off grid operation+green power direct connection" mode.

The annual power generation of the project is about 3.7 billion kilowatt hours, all of which will be used for electrolyzing water to produce green hydrogen. This "self production and self sales" model completely bypasses the bottleneck of traditional wind power grid connection difficulties and frequent power restrictions, achieving 100% self use of green power. In addition to hydrogen production, surplus electricity will also be converted into green steam and supplied to surrounding industrial enterprises in a targeted manner, forming a closed-loop energy cascade utilization.

Green hydrogen is just an intermediate product, and the ultimate goal of the project is to produce green methanol. By capturing biomass carbon sources (such as straw) and catalyzing their reaction with green hydrogen, approximately 300000 tons of green methanol can be produced annually.

This process not only converts unstable wind power into stable liquid fuel, but also achieves a perfect coupling of electricity hydrogen carbon. For Huanan County, this is not only an energy project, but also a green chemical new industry chain created by combining local high-quality wind resources with agricultural carbon sources.

From the demonstration of 100 megawatts to the commercialization of 1.2 gigawatts, it is the long-term deep cultivation of China Energy Jianhua North Institute in the off grid hydrogen production technology system. In response to the challenges of high wind wave dynamics and stable chemical production requirements, the team has constructed a complete electromagnetic transient model, proposed voltage frequency stability boundaries, and independently developed a "wind solar hydrogenation integrated simulation platform".

This technological system provides full process support from networking solutions, simulation verification to control strategies, ensuring that the hydrogen production system can still operate safely and stably even without the power grid, providing a replicable Chinese solution for large-scale off grid hydrogen production worldwide.Editor/Yang Meiling