Top 8 Countries by UHVDC Power Transmission Mileage

The Race for Energy Arteries

In the field of UHVDC transmission, China holds an absolute global lead, not only by continuously breaking records in transmission distance (e.g., ±1100kV lines) but also by maintaining a grid scale that far exceeds any other nation.

• Technological Gap: The 800kV and 1100kV UHVDC technologies widely implemented in China have become the industry benchmark.
• Future Trends: Driven by the global energy transition, nations like Brazil and India are rapidly narrowing the geographic gap between energy production hubs and consumption centers by adopting advanced UHVDC technology.