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Asset classes
- Transmission Line80,968
- Power Plant32,429
- Substation / Converter7,614
- Oil & Gas Field7,055
- Coal / Uranium Mine5,382
- Pipeline4,951
- Cement Plant3,513
- Data Centre3,283
- Iron & Steel Plant1,293
- LNG Terminal1,198
- Grid Storage965
- Iron Ore Mine949
- Chemical Plant868
- Interconnector704
- Export Terminal519
- Refinery279
- Storage / Tank Farm38
- Oil / Commodity Contract19
- Hydrogen Project18
- Carbon Capture (CCS)16
Chokepoints
Cuba · electricity network
Cuba power grid
OverWatts maps 2,425 km of Cuba's electricity transmission network across 152 line segments and 0 substations, the 83rd most-mapped grid of 153 countries. Its backbone is high voltage (220–379 kV), carrying 2,425 km — 100% of the mapped length, with the highest tagged voltage at 220 kV. That works out to 21.1 km per 1,000 km² of land — moderate OpenStreetMap coverage, ahead of 59% of mapped countries.
OpenStreetMap coverage
This grades how completely OpenStreetMap has drawn Cuba'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. 72% of segments carry a real line name and 76% an operator tag.
Mapped line length by voltage
- 220–379 kV2,425 km 100%
152 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
Load against the network
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 Cuba's network
- UNE – SEN116 100%
Segment counts from OSM `operator` tags, merged across spellings. Present on 76% of segments — this ranks who is recorded, not market share.
How Cuba compares · mapped grid by country
- 1. People's Republic of China624,300 km
- 81. Oman2,512 km
- 82. Bosnia and Herzegovina2,442 km
- 83. Cuba2,425 km
- 84. Slovakia2,207 km
- 85. Mongolia2,138 km
Frequently asked
- How big is Cuba's transmission network?
- OverWatts maps 2,425 km of transmission line in Cuba, across 152 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 Cuba's grid?
- Most of the mapped network is high voltage (220–379 kV): 2,425 km of 2,425 km. The highest voltage tagged anywhere in the country is 220 kV.
- How complete is the grid map for Cuba?
- Moderate — 21.1 km of mapped line per 1,000 km² of land, ahead of 59% 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 Cuba?
- UNE – SEN are tagged as operators on mapped segments. Operator tags are present on 76% of Cuba's segments, so this ranks who is *recorded*, not market share.
Elsewhere in Cuba
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.