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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
Bhutan · electricity network
Bhutan power grid
OverWatts maps 673 km of Bhutan's electricity transmission network across 27 line segments and 3 substations, the 123rd most-mapped grid of 153 countries. Its backbone is extra-high voltage (380–764 kV), carrying 390 km — 58% of the mapped length, with the highest tagged voltage at 400 kV. That works out to 17.1 km per 1,000 km² of land — moderate OpenStreetMap coverage, ahead of 50% of mapped countries. It is connected to 1 neighbouring grid by 1,980 MW of existing cross-border transfer capacity, with a further 2,220 MW planned.
OpenStreetMap coverage
This grades how completely OpenStreetMap has drawn Bhutan'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 4% an operator tag.
Mapped line length by voltage
- 380–764 kV390 km 58%
- 220–379 kV283 km 42%
27 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 Bhutan
2.0 GW existing · 2.2 GW planned · capacities from the Global Transmission Database v0.1 (CC BY 4.0), existing as of 2023
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 Bhutan's network
Segment counts from OSM `operator` tags, merged across spellings. Present on 4% of segments — this ranks who is recorded, not market share.
How Bhutan compares · mapped grid by country
- 1. People's Republic of China624,300 km
- 121. Burkina Faso723 km
- 122. Puerto Rico690 km
- 123. Bhutan673 km
- 124. Mauritania630 km
- 125. North Macedonia598 km
Frequently asked
- How big is Bhutan's transmission network?
- OverWatts maps 673 km of transmission line in Bhutan, across 27 segments, plus 3 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 Bhutan's grid?
- Most of the mapped network is extra-high voltage (380–764 kV): 390 km of 673 km. The highest voltage tagged anywhere in the country is 400 kV.
- How complete is the grid map for Bhutan?
- Moderate — 17.1 km of mapped line per 1,000 km² of land, ahead of 50% 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 Bhutan?
- Power Grid Corporation of India Ltd are tagged as operators on mapped segments. Operator tags are present on 4% of Bhutan's segments, so this ranks who is *recorded*, not market share.
- What interconnectors connect Bhutan to its neighbours?
- 1,980 MW of cross-border transfer capacity to India, plus 2,220 MW planned. Capacities are from the Global Transmission Database (v1.0, 2023).
Elsewhere in Bhutan
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.