China Mainland Interprovincial Transmission Network (500 kV and Above)

    This dataset contains curated records of interprovincial transmission capacity in mainland China for high-voltage DC lines (EHV/UHV) and AC lines rated 500 kV and above. Voltage levels include:

    • AC: 500 kV, 750 kV, 1000 kV
    • DC: ±400 kV, ±500 kV, ±660 kV, ±800 kV, ±1100 kV

    The downloadable CSV file aggregates individual lines into province-to-province links and includes estimated transfer capacities. It does not include coordinates or detailed geometries for transmission lines, towers, or substations.

    This database is compiled and validated using a large volume of publicly available online sources. Additionally, OpenStreetMap serves as an important source for cross-validating part of the data. See Methodology for details.

    Coverage
    ResolutionInterprovincialFrequencyN/APeriodAs of 2025/11
    Details
    FormatCSVSize3 KBUpdated2025-11-30

    Data Preview

    province aprovince bvoltagecapacity mw
    AnhuiJiangsu500 kV and above14800
    AnhuiXinjiang500 kV and above12000
    AnhuiZhejiang500 kV and above13600

    Data Visualization

    China Mainland Interprovincial Transmission Network (500 kV and Above): data visualization