An automated intelligent 220 kV substation, which ensures power supply for the new energy industry, is put into operation. [Photo by Wang Liman/Provided to chinadaily.com.cn]
A photovoltaic hydrogen demonstration project in Juungar Banner, Inner Mongolia autonomous region, was recently connected to the grid in a step to stabilize power generation.
It is the first hydrogen-producing integrated project for wind-solar hydrogen production in Inner Mongolia and the world's first 100,000-ton green hydrogen demonstration project.
It utilizes green electricity from solar power to electrolyze water into hydrogen and oxygen through water electrolysis devices. By exploring a new mode of pollution-free and zero-emission hydrogen production using renewable energy, the project aims to address power absorption for high-proportion grid integration of renewable energy sources.
An automated intelligent 220 kV substation, which ensures power supply for the new energy industry, is put into operation. [Photo by Wang Liman/Provided to chinadaily.com.cn]
"About 80 percent of the generated solar electricity is used for water electrolysis to produce hydrogen, while the remaining 20 percent is fed into the grid. The annual hydrogen production reaches 10,000 tons, with an additional byproduct of 85,000 tons of oxygen. The hydrogen production facility consists of 15 electrolyzers with a maximum load of 90,000 kilowatts, which satisfies 10,000 tons of annual hydrogen production target," said Ji Mengbo, the technical director of the Narisong photovoltaic hydrogen project.
Ji added that it achieves overall profitability through equal substitution and power settlement with the grid.
Photovoltaic power generation is stochastic, fluctuating and intermittent, while hydrogen production requires a stable power supply. To ensure the power demand of China's first 10,000-ton new energy hydrogen production, Xuejiawan power supply company of Inner Mongolia Electric Power CO Ltd has invested 233 million yuan ($32 million) into the construction of the Andinghao 220 kV substation project.
