Gansu Power Transmission to Shandong via China’s First Integrated UHV Line
Time:2025-06-27 14:22:34 Source:CCTD
Edited and Updated by Ethan Ma
June 27, 2025
·China's first integrated wind-solar-thermal-storage UHV power transmission line is now operational.
·The project enables 36 billion kWh of annual transmission, with over 50% from renewable sources.
·Gansu’s green power trading and certification have surged.
On May 8, China officially commissioned its first ultra-high-voltage (UHV) DC power transmission project integrating wind, solar, thermal, and energy storage. The ±800 kV Longdong–Shandong UHV DC project marks a significant milestone in Gansu Province’s efforts to expand its green energy delivery network. With this launch, Gansu now operates two UHV outbound channels: the Jiuquan-Shaoshan (Qishao) line and the Longdong–Shandong line.
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The project is backed by 14.5 GW of installed capacity, over 70% of which comes from renewable sources. It is also the first to include 1.05 GW of energy storage at the sending end, allowing complementary dispatch of wind, solar, and thermal energy. In its first month of operation, it transmitted 700 million kWh of electricity, with annual delivery expected to reach 36 billion kWh—half from renewables.
Gansu, rich in wind and solar resources, is a key base for renewable energy and equipment manufacturing in China. By the end of May 2024, the province’s total installed capacity reached 107 GW, with renewables accounting for nearly 66% of capacity and 40% of total power generation—among the highest nationwide.
Domestically, Gansu has built a comprehensive electricity market. Over 87,000 users now participate in market-based power transactions. From January to May 2025, green power and green certificate trading volumes surged by 1.5 and 16.3 times respectively year-on-year, further releasing the benefits of green electricity.
More than 430 industrial enterprises are now participating in the spot power market, flexibly consuming green electricity. This shift has helped move over 10% of the province’s electricity demand from peak evening hours to midday, cutting electricity costs by over 3 billion yuan while boosting product’s content of “green power” and competitiveness.
In the first five months of 2024, Gansu traded 6.52 million green certificates, up nearly 70% year-on-year. Notably, green certificate purchases by in-province users rose 9.4 times over the entire previous year. Driven by policy, market demand, and export requirements, green power is becoming increasingly attractive to enterprises.
“A green certificate is like an identity card for clean electricity,” said Fu Zheng, Chairman of the Gansu Electric Power Trading Center. “The sharp increase in trading volume reflects Gansu’s progress in becoming a major national clean energy hub and improving local consumption of green power.”
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