How big is Gabon's transmission network?

OverWatts maps 172 km of transmission line in Gabon, across 3 segments, plus 0 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 Gabon's grid?

Most of the mapped network is high voltage (220–379 kV): 172 km of 172 km. The highest voltage tagged anywhere in the country is 225 kV.

How complete is the grid map for Gabon?

Sparse — 0.6 km of mapped line per 1,000 km² of land, ahead of 3% 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.

Gabon · electricity network

Gabon power grid

OverWatts maps 172 km of Gabon's electricity transmission network across 3 line segments and 0 substations, the 141st most-mapped grid of 153 countries. Its backbone is high voltage (220–379 kV), carrying 172 km — 100% of the mapped length, with the highest tagged voltage at 225 kV. That works out to 0.6 km per 1,000 km² of land — sparse OpenStreetMap coverage, ahead of 3% of mapped countries.

Open the grid lens →Gabon profile →

172 km

Mapped transmission line

Substations

#141

of 153 mapped grids

225 kV

Highest voltage

OpenStreetMap coverage

Sparse0.6 km / 1,000 km²ahead of 3% of 153 mapped countries

This grades how completely OpenStreetMap has drawn Gabon'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. 0% of segments carry a real line name and 0% an operator tag.

Mapped line length by voltage

220–379 kV172 km 100%

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

On the interactive map

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Load against the network

656 MW

Operating generation

—

km of line per substation

0.6

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.

How Gabon compares · mapped grid by country

1. People's Republic of China624,300 km
139. Malawi191 km
140. Yemen183 km
141. Gabon172 km
142. Eswatini141 km
143. The Gambia140 km

Frequently asked

How big is Gabon's transmission network?: OverWatts maps 172 km of transmission line in Gabon, across 3 segments, plus 0 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 Gabon's grid?: Most of the mapped network is high voltage (220–379 kV): 172 km of 172 km. The highest voltage tagged anywhere in the country is 225 kV.
How complete is the grid map for Gabon?: Sparse — 0.6 km of mapped line per 1,000 km² of land, ahead of 3% 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.

Elsewhere in Gabon

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.