How big is Ghana's transmission network?

OverWatts maps 1,192 km of transmission line in Ghana, across 46 segments, plus 4 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 Ghana's grid?

Most of the mapped network is high voltage (220–379 kV): 1,192 km of 1,192 km. The highest voltage tagged anywhere in the country is 330 kV.

How complete is the grid map for Ghana?

Sparse — 4.9 km of mapped line per 1,000 km² of land, ahead of 18% 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 Ghana?

Ghana Grid Company, Grid Co, SONABEL are tagged as operators on mapped segments. Operator tags are present on 13% of Ghana's segments, so this ranks who is *recorded*, not market share.

What interconnectors connect Ghana to its neighbours?

1,268 MW of cross-border transfer capacity to Benin, Togo, Côte d'Ivoire, Burkina Faso, plus 650 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).

Ghana · electricity network

Ghana power grid

OverWatts maps 1,192 km of Ghana's electricity transmission network across 46 line segments and 4 substations, the 104th most-mapped grid of 153 countries. Its backbone is high voltage (220–379 kV), carrying 1,192 km — 100% of the mapped length, with the highest tagged voltage at 330 kV. That works out to 4.9 km per 1,000 km² of land — sparse OpenStreetMap coverage, ahead of 18% of mapped countries. It is connected to 4 neighbouring grids by 1,268 MW of existing cross-border transfer capacity, with a further 650 MW planned.

Open the grid lens →Ghana profile →

1,192 km

Mapped transmission line

Substations

#104

of 153 mapped grids

1.3 GW

cross-border · 4 neighbours

330 kV

Highest voltage

OpenStreetMap coverage

Sparse4.9 km / 1,000 km²ahead of 18% of 153 mapped countries

This grades how completely OpenStreetMap has drawn Ghana'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. 7% of segments carry a real line name and 13% an operator tag.

Mapped line length by voltage

220–379 kV1,192 km 100%

46 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 Ghana

Benin450 MW
Togo438 MW
Côte d'Ivoire280 MW
Burkina Faso100 MW
Benin650 MW · planned

1.3 GW existing · 650 MW 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

5.3 GW

Operating generation

298

km of line per substation

4.9

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 Ghana's network

Segment counts from OSM `operator` tags, merged across spellings. Present on 13% of segments — this ranks who is recorded, not market share.

How Ghana compares · mapped grid by country

1. People's Republic of China624,300 km
102. Latvia1,306 km
103. Mali1,194 km
104. Ghana1,192 km
105. Albania1,160 km
106. Denmark1,149 km

Frequently asked

How big is Ghana's transmission network?: OverWatts maps 1,192 km of transmission line in Ghana, across 46 segments, plus 4 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 Ghana's grid?: Most of the mapped network is high voltage (220–379 kV): 1,192 km of 1,192 km. The highest voltage tagged anywhere in the country is 330 kV.
How complete is the grid map for Ghana?: Sparse — 4.9 km of mapped line per 1,000 km² of land, ahead of 18% 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 Ghana?: Ghana Grid Company, Grid Co, SONABEL are tagged as operators on mapped segments. Operator tags are present on 13% of Ghana's segments, so this ranks who is *recorded*, not market share.
What interconnectors connect Ghana to its neighbours?: 1,268 MW of cross-border transfer capacity to Benin, Togo, Côte d'Ivoire, Burkina Faso, plus 650 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).

Elsewhere in Ghana

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.