LOADING INFRASTRUCTURE DATA

GridTwin ZA

3D POWER INFRASTRUCTURE · SOUTH AFRICA · DRAG TO ROTATE · SCROLL TO ZOOM

← Main model
185
Substations
314
Existing lines ≥220kV
80
Planned line projects
14 198 km
Planned line, TDP 2025–34

Existing network

Solid fill · colour by voltage
765kV substation
400kV substation
275kV substation
132kV substation
765kV line
400kV line
275kV line
220kV line

SAPP interconnectors

Lines leaving South Africa
Planned – direct to SA
Planned – regional
Dashed amber routes are from the SAPP Master Plan Update (draft, July 2026). Commissioning years come from the plan's own transmission utilisation tables. Routes are indicative – the plan gives interfaces, not alignments.
Crosses the SA border
Onward regional leg
10 circuits to Namibia, Mozambique, Botswana and Eswatini, plus 2 onward legs. Lines end at the border. Hover for detail.
Lesotho is not shown: it connects at 132 kV (Muela and Eskom into Maputsoe and Mabote), below this map’s 220 kV floor.

Planned build (TDP)

Always red · never filled
Planned line
Upgrade at existing site
New substation — does not exist yet
Brighter = more committed · click any dot to name it