Java-Bali System Headlines
Subsystem totals from PLN AR 2024 and the RUPTL 2025-2034 baseline. The Java-Bali backbone supplies roughly 70% of national peak demand on a single synchronous island chain.
Drill Down by Province
Open a province sub-page for the 20 kV DC-feeder overlay and operator-level detail. Two showcase pages are live; the remaining provinces are scheduled.
DKI Jakarta + Banten New
Highest-density node on the Java-Bali grid. Coastal coal + city-edge gas, 18 known DC operators, peak load ~11.5 GW. Drill-down adds the 20 kV DC-feeder overlay (DCI, NTT, BDx, Equinix, Princeton, GDS).
- Peak ~11.5 GW · 25% reserve margin
- 18 known data-centre operators
- 62% coal · 28% gas
- 20 kV feeder overlay (~40 endpoints)
Jawa Barat New
Hydro + geothermal heartland, anchored by 1.0 GW Cirata reservoir and the Wayang Windu/Patuha geothermal complex. Hosts the Sentul + Karawang + Bandung DC clusters and a fast-growing edge layer.
- Peak ~8.2 GW · 28% reserve margin
- 22% hydro · 10% geothermal
- 6 DC operators · Sentul, Bandung, Karawang
- 20 kV feeder overlay (~30 endpoints)
Jawa Tengah + DIY
Heavy coal corridor plus Mrica hydro and Dieng geothermal. Edge data-centre footprint is small but growing around Semarang and Yogyakarta. Industrial intakes at Tegal, Pekalongan, Solo dominate the 20 kV layer.
- Peak ~5.4 GW · 33% reserve margin
- 71% coal · 9% geothermal · 8% hydro
- 3 known DC sites · industrial overlay
Jawa Timur
Largest single coal node in Indonesia (Paiton 4.71 GW) plus the Surabaya peering hub. Province page covers the 500/150 kV ring around Surabaya plus the Banyuwangi-Bali 275 kV submarine interconnect.
- Peak ~6.9 GW · 30% reserve margin
- 58% coal · 22% gas
- 4 DC operators · Surabaya cluster
Province Snapshot
Headline numbers for each Java-Bali province. Use the deep link #prov=jabar to land on a specific tab.
Live Energy Dashboard
Java-Bali generation mix, demand, and carbon intensity — modeled after energydashboard.co.uk/live. Static representative figures based on PLN AR 2024, RUPTL 2025-2034, BPS Statistical Indonesia 2024, and IEA Indonesia 2024 — not real-time telemetry.
Generation mix
24h Generation & Demand
24h Carbon intensity
Generation breakdown
| Source | GW | % | GWh today | tCO₂ today |
|---|
Top contributing plants (right now)
Historical Trends
10-year generation mix, demand growth, and renewable transition. Mirrors energydashboard.co.uk/historical.