PLN Reveals Cause of Rolling Blackouts in Java, Two Major Power Plants Experience Disruptions

The President Director of PT PLN (Persero), Darmawan Prasodjo, has disclosed that two coal-fired steam power plants (PLTU) on Java Island experienced technical disruptions, causing rolling blackouts across the island. The rolling power outages have occurred in several regions since early June 2026.

“We are facing challenges; there are technical constraints at two major power plants in Java owned and operated by our partners,” Darmawan stated in a voice recording confirmed by PLN in Jakarta on Saturday (20/6/2026).

Darmawan explained that the technical disruptions experienced by the Independent Power Producer (IPP) plants caused both facilities to be disconnected from the Java electricity system. In response to these constraints, Darmawan said that PLN, together with its power plant partners, has deployed teams to repair the two large PLTUs.

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

“Once again, we sincerely apologise for the disruption that has resulted in rolling blackouts across Java,” he said.