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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
Tanzania · electricity network
Tanzania power grid
OverWatts maps 5,410 km of Tanzania's electricity transmission network across 137 line segments and 3 substations, the 53rd most-mapped grid of 153 countries. Its backbone is high voltage (220–379 kV), carrying 4,304 km — 80% of the mapped length, with the highest tagged voltage at 400 kV. That works out to 5.8 km per 1,000 km² of land — partial OpenStreetMap coverage, ahead of 20% of mapped countries. No cross-border capacity is recorded today; 3,600 MW is planned.
OpenStreetMap coverage
This grades how completely OpenStreetMap has drawn Tanzania'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. 15% of segments carry a real line name and 25% an operator tag.
Mapped line length by voltage
- 380–764 kV1,106 km 20%
- 220–379 kV4,304 km 80%
137 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 Tanzania
0 MW existing · 3.6 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 Tanzania's network
- Tanesco34 100%
Segment counts from OSM `operator` tags, merged across spellings. Present on 25% of segments — this ranks who is recorded, not market share.
How Tanzania compares · mapped grid by country
- 1. People's Republic of China624,300 km
- 51. Philippines5,731 km
- 52. Namibia5,430 km
- 53. Tanzania5,410 km
- 54. Sudan5,324 km
- 55. Zambia5,098 km
Frequently asked
- How big is Tanzania's transmission network?
- OverWatts maps 5,410 km of transmission line in Tanzania, across 137 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 Tanzania's grid?
- Most of the mapped network is high voltage (220–379 kV): 4,304 km of 5,410 km. The highest voltage tagged anywhere in the country is 400 kV.
- How complete is the grid map for Tanzania?
- Partial — 5.8 km of mapped line per 1,000 km² of land, ahead of 20% 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 Tanzania?
- Tanesco are tagged as operators on mapped segments. Operator tags are present on 25% of Tanzania's segments, so this ranks who is *recorded*, not market share.
- What interconnectors connect Tanzania to its neighbours?
- None recorded as operating. 3,600 MW is planned across 4 pathways.
Elsewhere in Tanzania
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.