How big is Argentina's transmission network?

OverWatts maps 19,100 km of transmission line in Argentina, across 477 segments, plus 47 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 Argentina's grid?

Most of the mapped network is extra-high voltage (380–764 kV): 15,000 km of 19,100 km. The highest voltage tagged anywhere in the country is 500 kV.

How complete is the grid map for Argentina?

Partial — 6.8 km of mapped line per 1,000 km² of land, ahead of 24% 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 Argentina?

Transener, Empresa Provincial de la Energía de Santa Fe, TRANSBA S.A. and 5 others are tagged as operators on mapped segments. Operator tags are present on 29% of Argentina's segments, so this ranks who is *recorded*, not market share.

What interconnectors connect Argentina to its neighbours?

9,806 MW of cross-border transfer capacity to Uruguay, Paraguay, Brazil, Chile, Bolivia, plus 2,405 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).

Argentina · electricity network

Argentina power grid

OverWatts maps 19,100 km of Argentina's electricity transmission network across 477 line segments and 47 substations, the 18th most-mapped grid of 153 countries. Its backbone is extra-high voltage (380–764 kV), carrying 15,000 km — 79% of the mapped length, with the highest tagged voltage at 500 kV. That works out to 6.8 km per 1,000 km² of land — partial OpenStreetMap coverage, ahead of 24% of mapped countries. It is connected to 5 neighbouring grids by 9,806 MW of existing cross-border transfer capacity, with a further 2,405 MW planned.

Open the grid lens →Argentina profile →

19,100 km

Mapped transmission line

Substations

#18

of 153 mapped grids

9.8 GW

cross-border · 5 neighbours

500 kV

Highest voltage

OpenStreetMap coverage

Partial6.8 km / 1,000 km²ahead of 24% of 153 mapped countries

This grades how completely OpenStreetMap has drawn Argentina'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. 16% of segments carry a real line name and 29% an operator tag.

Mapped line length by voltage

380–764 kV15,000 km 79%
220–379 kV4,066 km 21%

477 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 Argentina

Uruguay3.9 GW
Paraguay3.3 GW
Brazil2.3 GW
Chile200 MW
Bolivia120 MW
Chile2.1 GW · planned
Paraguay270 MW · planned

9.8 GW existing · 2.4 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

42.0 GW

Operating generation

406

km of line per substation

6.8

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.

Segment counts from OSM `operator` tags, merged across spellings. Present on 29% of segments — this ranks who is recorded, not market share.

How Argentina compares · mapped grid by country

1. People's Republic of China624,300 km
16. Algeria20,700 km
17. Ukraine19,200 km
18. Argentina19,100 km
19. Vietnam18,900 km
20. Japan18,800 km

Frequently asked

How big is Argentina's transmission network?: OverWatts maps 19,100 km of transmission line in Argentina, across 477 segments, plus 47 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 Argentina's grid?: Most of the mapped network is extra-high voltage (380–764 kV): 15,000 km of 19,100 km. The highest voltage tagged anywhere in the country is 500 kV.
How complete is the grid map for Argentina?: Partial — 6.8 km of mapped line per 1,000 km² of land, ahead of 24% 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 Argentina?: Transener, Empresa Provincial de la Energía de Santa Fe, TRANSBA S.A. and 5 others are tagged as operators on mapped segments. Operator tags are present on 29% of Argentina's segments, so this ranks who is *recorded*, not market share.
What interconnectors connect Argentina to its neighbours?: 9,806 MW of cross-border transfer capacity to Uruguay, Paraguay, Brazil, Chile, Bolivia, plus 2,405 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).

Elsewhere in Argentina

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.