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August 31, 2021updated 17 Sep 2021 12:19pm

Soochow Substation, China

By Carmen

Soochow Substation is a 1000kV substation located in Jiangsu, Jiangsu, China. The construction works on Soochow Substation began in 2019. The project was commissioned in 2020.


The Soochow Substation project is an upgrade substation being operated by State Grid Corporation of China.

The designed voltage level of the project is 1000kV, while the operating voltage level is 1000kV. The step-in voltage of the substation is 1000kV. The substation capacity is 3,000MVA.

Soochow Substation has received approval from The State Electricity Regulatory Commission to undertake the works on the project.

Contractors involved

Jiangsu Electric Power Design Institute was appointed by State Grid Corporation of China to undertake design and construction works of the Soochow Substation.

About State Grid Corporation of China

State Grid Corporation of China (SGCC) is a state-owned electric utility. The utility builds and operates power grids, and distributes and transmits electricity. The utility offers energy efficient home appliances air conditioner, fan, TV set, washing machine, microwave oven, refrigerator, electric water heater and computer to save energy. It provides energy conservation, energy audits, energy management, energy saving tips and energy consultation services. SGCC’s projects include Jindongnan Nanyang-Jingmen UHV AC Pilot Project, Xiangjiaba-Shanghai UHV DC Transmission Pilot Project, Qinghai-Tibet Grid Interconnection Project, and others.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.

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