The first domestic island "green hydrogen" demonstration project was put into operation to explore "zero carbon" energy supply

Recently, it was learned that on July 8, the State Grid Zhejiang Taizhou Dachen Island Hydrogen Energy Comprehensive Utilization Demonstration Project was officially put into operation.
This is also the first domestic island "green hydrogen" comprehensive energy demonstration project, which will produce hydrogen energy storage for China's renewable energy.
, Multiple coupling and efficient utilization of hydrogen energy provide a replicable and scalable demonstration model
.

Hydrogen does not produce carbon emissions in the process of releasing energy, and plays an increasingly important role in the global energy transition
.
However, as a secondary energy source, due to different hydrogen production technologies, the current process of producing hydrogen energy is not 100% "zero carbon"
.
The so-called "green hydrogen" is hydrogen obtained by decomposing water by using renewable energy, which realizes zero emission of carbon dioxide from the source and is a pure green new energy
.

Dachen Island, located in the East China Sea, has an annual average wind speed of 6.
8 m/s and an annual effective wind energy hours of 7,000 hours.
It is endowed with unique wind energy resources
.
At present, there are 34 wind turbines installed, with a total installed capacity of about 27 MVA, which can generate an average of more than 60 million kWh per year
.

"The project utilizes the abundant wind power on the island, electrolyzes water to produce hydrogen through proton exchange membrane technology, and builds a 'hydrogen production-hydrogen storage-fuel cell' combined heat and power system
.
" said Li Zhihao, a full-time hydrogen-electric coupling technology engineer at Zhejiang Electric Power Research Institute, State Grid , "This effectively promotes the island's clean energy consumption and grid flow optimization, and achieves 100% clean energy consumption in Dachen Island and the whole process of 'zero carbon' energy supply
.
"

It is understood that the project has applied the first set of equipment such as hydrogen production/power generation integrated conversion device, achieved the first set of domestic hydrogen comprehensive utilization energy management and safety control technology breakthrough, and improved the adaptability and safety of the new power system to new energy.
The comprehensive energy efficiency exceeds 72%, reaching the international leading level.
It is a powerful exploration and practice of a new type of power system
.

"After it is put into operation, it is expected to consume 365,000 kilowatt-hours of surplus wind power on the island and produce 73,000 standard square meters of hydrogen each year.
This hydrogen can generate about 100,000 kilowatt-hours of electricity and reduce carbon dioxide emissions by 73 tons
.
" State Grid Taizhou Power Supply Company Internet Office Deputy Director Zhang Chi said, "This is equivalent to a 'large power bank', which can meet the electricity demand of Dachen Island during peak power consumption and emergency maintenance
.
"

It is understood that with the coordinated development of agricultural industrialization and island revitalization, the pace of development of Dachen Island has been accelerating in recent years
.
The fishery resources around the island are rich, and the aquaculture scale reaches 2 million cubic meters of water
.
The high-purity oxygen produced by the "Green Hydrogen" project during electrolysis of water will serve the cultivation of large yellow croaker by local fishermen
.
The heat generated by its fuel cell power generation is recovered through heat recovery, which will provide hot water for homestays and hotels on the island
.
In the future, the new energy tourist vehicles on the island will also use hydrogen-powered charging piles
.