How big is Chile's transmission network?

OverWatts maps 14,200 km of transmission line in Chile, across 1,336 segments, plus 13 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 Chile's grid?

Most of the mapped network is high voltage (220–379 kV): 11,400 km of 14,200 km. The highest voltage tagged anywhere in the country is 500 kV.

How complete is the grid map for Chile?

Moderate — 17.4 km of mapped line per 1,000 km² of land, ahead of 51% 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 Chile?

Transelec, Minera Escondida, Interchile and 5 others are tagged as operators on mapped segments. Operator tags are present on 25% of Chile's segments, so this ranks who is *recorded*, not market share.

What interconnectors connect Chile to its neighbours?

200 MW of cross-border transfer capacity to Argentina, plus 3,485 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).

Chile · electricity network

Chile power grid

OverWatts maps 14,200 km of Chile's electricity transmission network across 1,336 line segments and 13 substations, the 26th most-mapped grid of 153 countries. Its backbone is high voltage (220–379 kV), carrying 11,400 km — 80% of the mapped length, with the highest tagged voltage at 500 kV. That works out to 17.4 km per 1,000 km² of land — moderate OpenStreetMap coverage, ahead of 51% of mapped countries. It is connected to 1 neighbouring grid by 200 MW of existing cross-border transfer capacity, with a further 3,485 MW planned.

Open the grid lens →Chile profile →

14,200 km

Mapped transmission line

Substations

#26

of 153 mapped grids

200 MW

cross-border · 1 neighbours

500 kV

Highest voltage

OpenStreetMap coverage

Moderate17.4 km / 1,000 km²ahead of 51% of 153 mapped countries

This grades how completely OpenStreetMap has drawn Chile'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. 21% of segments carry a real line name and 25% an operator tag.

Mapped line length by voltage

380–764 kV2,830 km 20%
220–379 kV11,400 km 80%

1,336 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 Chile

Argentina200 MW
Argentina2.1 GW · planned
Peru1.0 GW · planned
Peru200 MW · planned
Bolivia150 MW · planned

200 MW existing · 3.5 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

27.8 GW

Operating generation

Data centres mapped

1093

km of line per substation

17.4

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 Chile's network

Segment counts from OSM `operator` tags, merged across spellings. Present on 25% of segments — this ranks who is recorded, not market share.

How Chile compares · mapped grid by country

1. People's Republic of China624,300 km
24. Sweden14,700 km
25. Pakistan14,600 km
26. Chile14,200 km
27. Thailand12,600 km
28. Colombia12,600 km

Frequently asked

How big is Chile's transmission network?: OverWatts maps 14,200 km of transmission line in Chile, across 1,336 segments, plus 13 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 Chile's grid?: Most of the mapped network is high voltage (220–379 kV): 11,400 km of 14,200 km. The highest voltage tagged anywhere in the country is 500 kV.
How complete is the grid map for Chile?: Moderate — 17.4 km of mapped line per 1,000 km² of land, ahead of 51% 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 Chile?: Transelec, Minera Escondida, Interchile and 5 others are tagged as operators on mapped segments. Operator tags are present on 25% of Chile's segments, so this ranks who is *recorded*, not market share.
What interconnectors connect Chile to its neighbours?: 200 MW of cross-border transfer capacity to Argentina, plus 3,485 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).

Elsewhere in Chile

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.