PLN Admits Need to Fix Energy Supply Chain After Java Blackouts

PT PLN (Persero) has admitted the necessity of improving primary energy supply chain governance after disruptions in coal supply and power plant technical issues triggered rolling blackouts across several regions of Java last week. Company CEO Darmawan Prasodjo stated that PLN will undertake a thorough evaluation of the primary energy supply system to bolster the reliability of the national electricity supply.

"We are also improving the governance of the primary energy supply chain and strengthening power plants, both those owned by PLN and by our partners, the Independent Power Producers (IPPs)," Darmawan said in a press release in Jakarta on Monday (June 22, 2026). He explained that the Java electricity system began to improve on Sunday (June 21, 2026), as primary energy supply meeting power plant specifications started flowing to several plants. Additionally, a major power plant unit owned by a PLN partner, which had experienced technical issues, was successfully restored and resumed supplying electricity to the Java system.

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We are also improving the governance of the primary energy supply chain and strengthening power plants, both those owned by PLN and by our partners, the Independent Power Producers (IPPs).

Darmawan elaborated that during the disruption, PLN faced multiple pressures, including limited primary energy supply that met power plant specifications and the outage of two major power plants owned by private electricity producers due to technical constraints. These conditions reduced the power reserve of the Java electricity system, forcing PLN to implement rolling blackouts to maintain network stability. He apologized to the public for the inconvenience caused by the disruption and assured that PLN is taking various improvement measures to increase energy supply resilience and power plant reliability.

"We are making all-out efforts 24 hours a day, seven days a week, both in monitoring and mapping all our efforts so that the improvement of the Java electricity system's reliability can be maintained and even enhanced," he stated. PLN also announced it will strengthen coordination with primary energy suppliers and power plant partners to anticipate similar disruptions in the future. The recent rolling blackouts have highlighted the critical importance of managing the primary energy supply chain for maintaining the reliability of the national electricity system. The dependence of power plants on coal supply meeting specific standards means that supply disruptions can directly impact power availability, particularly in the Java system, which is the backbone of national electricity demand.

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We are making all-out efforts 24 hours a day, seven days a week, both in monitoring and mapping all our efforts so that the improvement of the Java electricity system's reliability can be maintained and even enhanced.