Power Grid Topology and Hierarchy Identification from Open Data

Shiliang Zhang, University of Oslo

The result is demonstrated in our paper Urban Power Grid Topology and Hierarchy Identification from Open Data, in 2026, pre-print: doi: 10.48550/arXiv.2606.21352

Method overview

Data collection in the area of Alna, Oslo, Norway

An overview of the utility assests in Alna

Related definitions and examples in OSM wiki:

Substation

Pole mounted transformer

Tower transformer

Distribution station

Below is the identified power grids for the entire Alna district, together with the existing grid topology from open data sources:

I straighten the power lines connecting substations/transformers directly down to the load, so as to visualise the hierarchy of the power grid network below:

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