275 kV backbone
150 kV
Batam island (separate)
Substation
Plant
Data center
Batam is islanded. The Batam-Bintan-Rempang-Galang (Barelang) 150 kV grid is not synchronously tied to the mainland Sumatra interconnection — it is its own system run by b'right PLN Batam, with Medco Power's Panaran gas plants and PLTU Tanjung Kasam as base-load, and the Nongsa Digital Park subsea-cable DC hub as a fast-growing, Singapore-adjacent AI/edge load.
Substation & plant atlas
| Node | Type | kV | Capacity | Region | Notes |
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