Hitachi Energy to deliver HVDC solutions for China’s cross-regional power highway
Hitachi Energy will provide HVDC equipment for the Gansu-Zhejiang ±800 kV UHVDC Transmission project, designed and built by the SGCC.
Image for illustration purposes.
China: Hitachi Energy will provide High-Voltage Direct Current (HVDC) equipment for the Gansu-Zhejiang ±800 kV Ultra High Voltage Direct Current (UHVDC) Transmission project, designed and built by the State Grid Corporation of China (SGCC). The project will facilitate the development and transmission of energy from renewable energy bases in the Gobi Desert and other arid regions, while meeting the increased demand driven by economic development in the Yangtze River Delta region.
China’s renewable energy industry is growing rapidly as the energy transition advances. According to the IEA, the country is forecasted to be home to half of all renewable energy capacity installed worldwide by 2030. UHVDC transmission projects are crucial and will improve China’s energy structure and large-scale power transmission. In 2023, the share of renewable energy transmitted via national UHVDC lines had surpassed 55%.
The 2370 km long project starts from northwest China’s Gansu province and extends to southeast China’s Zhejiang province. Upon operation in 2026, it will deliver approximately 36 billion kWh of electricity annually to Zhejiang, which regularly faces power shortages, equivalent to the annual consumption of about 33.7 million people in China. More than 50% of the power will be sourced from renewable energy.
The project will improve the utilization of renewable energy in Gansu Province, which is home to deserts, including the Gobi Desert, and barren lands rich in wind and solar resources. As the world’s first UHVDC project to adopt VSC-HVDC technology at both ends, the link aims to increase the proportion of renewables integrated while improving transmission flexibility and control. It is expected to enable the consumption of over 21.2 billion kWh of renewable electricity generated in Gansu. Hitachi Energy will provide key technologies for the project, including converter transformers, power semiconductors, and dry DC-link capacitors.
Source: Hitachi Energy
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