The all vanadium flow battery stores vanadium ion solutions in different valence states in positive and negative storage tanks. During battery charging and discharging, the electrolyte is pumped from the positive and negative storage tanks to circulate through the positive and negative chambers of the battery. After electron transfer occurs between the two chambers, oxidation and reduction reactions are completed on the electrode surface, ultimately achieving battery charging and discharging. "said Sun Faye, an automation engineer at Sichuan Weilide Energy Co., Ltd. The energy storage project stores surplus electricity and releases it during peak electricity consumption, achieving efficient utilization.
The Zhongbo Yuan Vanadium Liquid Flow Energy Storage Project is an energy storage project produced and installed by Gansu Weilide Energy Storage Battery Co., Ltd. last year, and completed commissioning in February of this year. "Last year, we also implemented the 5MW/20MWH all vanadium liquid flow energy storage project in Alxa. The on-site installation lasted 40 days and was completed at the end of December. At present, the commissioning has come to an end and will soon enter the commercial operation mode." Ma Hulong, deputy general manager of Gansu Weilide Energy Storage Battery Co., Ltd., introduced that Gansu Weilide Energy Storage Battery Co., Ltd., established in August 2022, is a production and manufacturing enterprise integrating the research, development, design, production, sales and service of all vanadium liquid flow energy storage system, and is a wholly-owned subsidiary of Sichuan Weilide Energy Co., Ltd. The company adheres to the mission of "using technological innovation to make energy storage safer", and plays a leading role in battery management system research and development, automated stack manufacturing, MW level photovoltaic side vanadium flow battery energy storage power station construction and operation, GW level vanadium flow battery manufacturing, etc., achieving technological breakthroughs and innovation, quickly serving and responding to the new energy storage needs of Gansu and surrounding power systems, promoting the healthy and sustainable development of the energy storage industry, and contributing to the achievement of the "dual carbon" goal in the region. Last year, the company achieved an industrial output value of 204 million yuan and provided employment for over 100 people.
At the integrated assembly workshop of Gansu Weilide Energy Storage Battery Co., Ltd., staff are busy preparing materials for the next project. We are bonding pipelines, and a system requires bonding 16 sections of PVC pipes of different lengths. After more than ten processes such as coil box production, module assembly, module entry, and pipeline installation, it takes about 12 hours to complete an energy storage system. "Staff member Zou Chenghong told reporters that the company's vanadium flow energy storage system is mainly used for power supply side, grid side, and large clients, and is sold to Xinjiang, Inner Mongolia, Shaanxi, Ningxia and other places.
Shandan County closely focuses on the development goal of building a "3+3" industrial chain, expanding and strengthening six major industries including coal production distribution and deep processing, new energy and energy storage equipment manufacturing, comprehensive development and utilization of new materials, biomedicine, deep processing of agricultural and livestock products, and digital economy. It has invested 248 million yuan to implement a standardized factory building construction project for high-tech enterprise incubation park in Chengbei Industrial Park, and has built 24 light steel structure large volume high standard factory buildings, two comprehensive office buildings, and one apartment building that integrate independent office and production assembly for enterprises, as well as supporting other ancillary facilities, effectively ensuring the production, living, and office needs of settled enterprises. At present, the incubation park has introduced production enterprises such as all vanadium flow energy storage batteries, photovoltaic brackets, aluminum alloy cables, automotive charging piles, lithium iron phosphate energy storage batteries, and automotive shock absorbers, which have played a good role in "building nests and attracting phoenixes", accelerated the landing process of investment projects, and achieved significant results in leading the economic development of the county.
Especially in the development of the new energy industry, Shandan County comprehensively integrates advantageous resources, promotes the implementation of the "intensification", "agglomeration" and "clustering" strategies in a three-dimensional manner, introduces two intelligent stack production lines of Gansu Weilide all vanadium flow battery energy storage equipment, adopts comprehensive system integration technologies such as high-power flow battery stack laser welding packaging, large-scale energy storage unit control, and energy storage power station construction and operation, with an annual production capacity of 500MW, greatly enhancing the value of "wind" and "light" energy.
