# PLN electrical infrastructure maintenance in Sulawesi

> Live situation record from CLSTR: https://clstr.news/situations/pln-electrical-infrastructure-maintenance-in-sulawesi
> Updated: 2026-09-11T10:24:48.000Z. Sources: 7. Developments: 4.

PT PLN (Persero) has implemented scheduled rotating power outages across various regions in Sulawesi, Indonesia, to conduct electrical infrastructure maintenance.

Initially, maintenance efforts focused on Makassar and surrounding areas in South, Southeast, and West Sulawesi. The company deployed over 230 technicians to work on networks, substations, and transformers to ensure long-term supply reliability. Officials noted these outages were strictly for facility maintenance and were not caused by the El Nino phenomenon or low hydroelectric water levels.

On September 6, 2026, rolling outages affected the Mamuju and Pasangkayu regions. In Mamuju and Tobadak, interruptions began at 10:30 WITA, impacting Simboro, Kepulauan, Tapalang, and West Tapalang, with maintenance extending into inland districts like Kalumpang, Bonehau, Mambi, Mehalaan, Tabulahan, and Aralle through the evening. In Pasangkayu and Central Mamuju, outages began at 10:00 WITA in Bambaira, Bambalamotu, and Sarjo, later affecting Budong-Budong, Karossa, and Topoyo, with activities scheduled to conclude around midnight.

Simultaneously, the PLN Unit Induk Distribusi Sulawesi Selatan, Sulawesi Tenggara, dan Sulawesi Barat (UID Sulselrabar) implemented rolling load management in Makassar and surrounding areas to maintain system stability. These rotation-based outages last between one and four hours per session. While the 125 MW Jeneponto Coal-Fired Power Plant (PLTU) has returned to operation, General Manager Edyansyah noted that some power plants still require optimization, meaning supply capacity has not yet fully returned to normal levels.

On September 11, 2026, the PLN Sungguminasa Customer Service Unit (ULP) scheduled load adjustments for the night in Gowa Regency, South Sulawesi. These adjustments are expected to affect parts of Tombolalang, Bonto-Bontoa, and Batang Kaluku, as well as various streets and public facilities. PLN stated that this schedule is an initial estimate that may change as the Sulbagsel electrical system undergoes a recovery transition.

## Timeline

### 2026-09-11: PLN conducts electrical maintenance and load adjustments in Indonesia

PT PLN (Persero) is performing electrical infrastructure maintenance in Central Kalimantan and scheduled load adjustments in Gowa, South Sulawesi, to ensure system reliability.

2 sources. https://clstr.news/cluster/pln-conducts-electrical-maintenance-and-load-adjustments-in-indonesia

### 2026-09-06: PLN implements rolling blackouts in Makassar due to power system maintenance

PLN is implementing rolling blackouts in Makassar and surrounding areas due to infrastructure maintenance on the South Sulawesi electrical system. Efforts to restore full power capacity are ongoing.

2 sources. https://clstr.news/cluster/pln-implements-rolling-blackouts-in-makassar-due-to-power-system-maintenance

### 2026-09-06: Mamuju and Pasangkayu face rolling power outages for maintenance

PT PLN (Persero) conducted rolling power outages in Mamuju, Tobadak, Pasangkayu, and Central Mamuju on September 6, 2026, for electrical infrastructure maintenance.

3 sources. https://clstr.news/cluster/mamuju-and-pasangkayu-face-rolling-power-outages-for-maintenance

### 2026-09-01: PLN implements rotating power outages in Sulawesi for maintenance

PLN is conducting rotating power outages in Makassar and surrounding Sulawesi regions for 1-4 hours due to essential infrastructure maintenance, not El Nino.

2 sources. https://clstr.news/cluster/pln-implements-rotating-power-outages-in-sulawesi-for-maintenance

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Cite as: PLN electrical infrastructure maintenance in Sulawesi. CLSTR, https://clstr.news/situations/pln-electrical-infrastructure-maintenance-in-sulawesi