How big is Luxembourg's transmission network?

OverWatts maps 210 km of transmission line in Luxembourg, across 202 segments, plus 1 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 Luxembourg's grid?

Most of the mapped network is high voltage (220–379 kV): 188 km of 210 km. The highest voltage tagged anywhere in the country is 380 kV.

How complete is the grid map for Luxembourg?

Strong — 87.4 km of mapped line per 1,000 km² of land, ahead of 99% 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 Luxembourg?

RTE, Elia, creos and 1 others are tagged as operators on mapped segments. Operator tags are present on 16% of Luxembourg's segments, so this ranks who is *recorded*, not market share.

What interconnectors connect Luxembourg to its neighbours?

3,360 MW of cross-border transfer capacity to Germany, Belgium, France, plus 1,900 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).

Luxembourg · electricity network

Luxembourg power grid

OverWatts maps 210 km of Luxembourg's electricity transmission network across 202 line segments and 1 substations, the 137th most-mapped grid of 153 countries. Its backbone is high voltage (220–379 kV), carrying 188 km — 90% of the mapped length, with the highest tagged voltage at 380 kV. That works out to 87.4 km per 1,000 km² of land — strong OpenStreetMap coverage, ahead of 99% of mapped countries. It is connected to 3 neighbouring grids by 3,360 MW of existing cross-border transfer capacity, with a further 1,900 MW planned.

Open the grid lens →Luxembourg profile →

210 km

Mapped transmission line

Substations

#137

of 153 mapped grids

3.4 GW

cross-border · 3 neighbours

380 kV

Highest voltage

OpenStreetMap coverage

Strong87.4 km / 1,000 km²ahead of 99% of 153 mapped countries

This grades how completely OpenStreetMap has drawn Luxembourg'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. 10% of segments carry a real line name and 16% an operator tag.

Mapped line length by voltage

380–764 kV22 km 10%
220–379 kV188 km 90%

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

Cross-border links from Luxembourg

Germany2.3 GW
Belgium680 MW
France380 MW
Germany1.0 GW · planned
Belgium500 MW · planned
Germany400 MW · planned

3.4 GW existing · 1.9 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

1.3 GW

Operating generation

210

km of line per substation

87.4

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 Luxembourg's network

RTE17 52%
Elia10 30%
creos4 12%
Amprion2 6%

Segment counts from OSM `operator` tags, merged across spellings. Present on 16% of segments — this ranks who is recorded, not market share.

How Luxembourg compares · mapped grid by country

Frequently asked

How big is Luxembourg's transmission network?: OverWatts maps 210 km of transmission line in Luxembourg, across 202 segments, plus 1 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 Luxembourg's grid?: Most of the mapped network is high voltage (220–379 kV): 188 km of 210 km. The highest voltage tagged anywhere in the country is 380 kV.
How complete is the grid map for Luxembourg?: Strong — 87.4 km of mapped line per 1,000 km² of land, ahead of 99% 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 Luxembourg?: RTE, Elia, creos and 1 others are tagged as operators on mapped segments. Operator tags are present on 16% of Luxembourg's segments, so this ranks who is *recorded*, not market share.
What interconnectors connect Luxembourg to its neighbours?: 3,360 MW of cross-border transfer capacity to Germany, Belgium, France, plus 1,900 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).

Elsewhere in Luxembourg

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.