How big is Austria's transmission network?

OverWatts maps 3,221 km of transmission line in Austria, across 1,307 segments, plus 34 substations. This is mapped length from OpenStreetMap, not an operator-reported total — where OSM is incomplete the figure is a floor, never a ceiling.

What voltage is Austria's grid?

Most of the mapped network is high voltage (220–379 kV): 1,818 km of 3,221 km. The highest voltage tagged anywhere in the country is 400 kV.

How complete is the grid map for Austria?

Strong — 38 km of mapped line per 1,000 km² of land, ahead of 77% of the 153 countries with any mapped grid. Coverage grades how completely OpenStreetMap has drawn the network, not how much network exists; large, sparsely-populated countries score low for geographic reasons alone.

Who operates the grid in Austria?

Austrian Power Grid AG, TIWAG, Wiener Netze and 5 others are tagged as operators on mapped segments. Operator tags are present on 33% of Austria's segments, so this ranks who is *recorded*, not market share.

What interconnectors connect Austria to its neighbours?

5,660 MW of cross-border transfer capacity to Germany, Switzerland, Slovenia, Czech Republic, Hungary, Italy, plus 10,040 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).

Austria · electricity network

Austria power grid

OverWatts maps 3,221 km of Austria's electricity transmission network across 1,307 line segments and 34 substations, the 72nd most-mapped grid of 153 countries. Its backbone is high voltage (220–379 kV), carrying 1,818 km — 56% of the mapped length, with the highest tagged voltage at 400 kV. That works out to 38 km per 1,000 km² of land — strong OpenStreetMap coverage, ahead of 77% of mapped countries. It is connected to 6 neighbouring grids by 5,660 MW of existing cross-border transfer capacity, with a further 10,040 MW planned.

Open the grid lens →Austria profile →

3,221 km

Mapped transmission line

Substations

#72

of 153 mapped grids

5.7 GW

cross-border · 6 neighbours

400 kV

Highest voltage

OpenStreetMap coverage

Strong38 km / 1,000 km²ahead of 77% of 153 mapped countries

This grades how completely OpenStreetMap has drawn Austria's network — not how much network exists. Large, sparsely-populated countries score low for geographic reasons alone, and every kilometre here is mapped length, so the totals are a floor rather than an operator-reported figure. 19% of segments carry a real line name and 33% an operator tag.

Mapped line length by voltage

380–764 kV1,404 km 44%
220–379 kV1,818 km 56%

1,307 segments · a segment is credited to the country containing its midpoint, so a border-crossing line counts once, on one side.

5.7 GW existing · 10.0 GW planned · capacities from the Global Transmission Database v0.1 (CC BY 4.0), existing as of 2023

On the interactive map

Open the interactive map →

Load against the network

15.1 GW

Operating generation

Data centres mapped

km of line per substation

km per 1,000 km²

Where there is room to connect a new load depends on published hosting capacity, which most operators release only as their own map. OverWatts does not yet ingest those feeds, so these are the density measures the open data supports — generation and mapped demand against mapped network — not a headroom figure.

Operators tagged on Austria's network

Segment counts from OSM `operator` tags, merged across spellings. Present on 33% of segments — this ranks who is recorded, not market share.

How Austria compares · mapped grid by country

1. People's Republic of China624,300 km
70. Serbia3,345 km
71. Ivory Coast3,260 km
72. Austria3,221 km
73. Laos3,200 km
74. Greece3,062 km

Frequently asked

How big is Austria's transmission network?: OverWatts maps 3,221 km of transmission line in Austria, across 1,307 segments, plus 34 substations. This is mapped length from OpenStreetMap, not an operator-reported total — where OSM is incomplete the figure is a floor, never a ceiling.
What voltage is Austria's grid?: Most of the mapped network is high voltage (220–379 kV): 1,818 km of 3,221 km. The highest voltage tagged anywhere in the country is 400 kV.
How complete is the grid map for Austria?: Strong — 38 km of mapped line per 1,000 km² of land, ahead of 77% of the 153 countries with any mapped grid. Coverage grades how completely OpenStreetMap has drawn the network, not how much network exists; large, sparsely-populated countries score low for geographic reasons alone.
Who operates the grid in Austria?: Austrian Power Grid AG, TIWAG, Wiener Netze and 5 others are tagged as operators on mapped segments. Operator tags are present on 33% of Austria's segments, so this ranks who is *recorded*, not market share.
What interconnectors connect Austria to its neighbours?: 5,660 MW of cross-border transfer capacity to Germany, Switzerland, Slovenia, Czech Republic, Hungary, Italy, plus 10,040 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).

Elsewhere in Austria

Transmission lines Substations Power plants Data centres

Network geometry: OpenStreetMap (ODbL) © OpenStreetMap contributors, ingested and measured by OverWatts · derived 2026-07-26. Counts every mapped line of 220 kV and above; the map layer draws the ≥380 kV backbone only, so it shows less than is measured here.