PLN Reveals Two Major Java Coal-Fired Power Plants Suffer Technical Faults

We are facing challenges; there are technical constraints at two large power plants in Java owned and operated by our partners.

he President Director of PT PLN (Persero), Darmawan Prasodjo, revealed that two coal-fired power plants (PLTU) on the island of Java are experiencing technical disturbances, causing rolling blackouts across the region.

“We are facing challenges, as there are technical constraints at two large power plants in Java owned and operated by our partners,” Darmawan stated in a voice recording confirmed by PLN in Jakarta on Saturday.

Darmawan explained that the technical issues experienced by these Independent Power Producers (IPP) caused both plants to drop out of the Java electricity system.

Regarding these constraints, Darma Segmented Darmawan noted that PLN, together with its power plant partners, has deployed teams to repair the two major coal-fired power plants.

Darmawan expressed hope that the repairs to the two plants would proceed quickly and smoothly, allowing both facilities to recover and immediately resume supplying electricity to the Java power system.

“Once again, we sincerely apologise for the disturbances that have resulted in rolling blackouts in Java,” he said.

He also expressed his appreciation to the government and all parties that have assisted PLN in the process of repairing the electricity system in Java.

Rolling blackouts have occurred in several areas since early June 2026. According to monitoring, several regions in East Java, particularly Surabaya, Sidoarjo, and Gresik, have frequently experienced power outages since last week at varying times.

Some of these areas have experienced sudden power outages lasting between two to five hours per day. Last week, several main roads in Surabaya also experienced blackouts lasting for hours into the night, posing significant risks to motorists.

Executive Vice President of Corporate Communications and CSR at PLN, Gregorius Adi Trianto, stated that to maintain the reliability of the electricity supply to customers, PLN is implementing limited and measured load management in several regions.

“This load management is temporary and will be phased out as the condition of the system supply improves,” said Greg.