Faulty Generator Sets Cause Power Interruption in Limbang

Temporary electricity interruption in Limbang areas due to load shedding

25 MAY 2021

Faulty generators at the Limbang Power Station led to supply instability in the district as other available generators have reached their maximum capacity, with the potential risk of not being able to cater for peak demand especially during hot weather.

On 24 May 2021, customers in several areas in Limbang experienced temporary supply interruption during a load shedding operation affecting supply to several areas including Batu Danau up to Tedungan Customs, Immigration and Quarantine (CIQ) Complex and Jalan Padaruan up to Pandaruan CIQ. Supply was fully and safely restored at 5pm on the same day. Load shedding is undertaken to prevent an overload and total outage in the power system during periods of very high electricity demand.

Sarawak Energy’s Regional Manager for Northern Region Tan Joo Kok said that the technical team is working around the clock to repair the damaged generator crankshaft, with repair work expected to be completed by the end of May.

“During this period, certain areas in Limbang will experience temporary supply interruption when the load demand exceeds the available generator capacity. While repair work is ongoing, our operations team is ready and will do our best to restore supply to the affected areas soonest possible, in the event of an interruption. The safety of the public and our on-site team is our top priority during these operations,” said Tan.

Sarawak Energy also deployed one unit of 1 Megavolt amperes (MVA) mobile generator set from Miri to serve as a back-up supply, with a team from Lawas on standby to assist.

“We are monitoring the situation closely to ensure continuous supply to the district and we appreciate the public’s kind understanding on this,” Tan added.

Meanwhile, plans to connect Limbang as part of the Northern Grid extension project to enhance reliability of supply are currently ongoing.

When the Limbang Town Extra High Voltage 275/33/11kV substation is completed by the target date of 2023, Limbang will no longer depend on diesel generation but will be connected to Sarawak’s main power plants though the Grid. The new substation will be equipped with two units of 20/25 MVA transformers and Limbang’s distribution network will be reconfigured upon the substation’s completion to cater for the future load growth in the district.

For more information and updates on supply interruption in Limbang, customers can call Sarawak Energy’s 24-hour Customer Care Centre at 1300-88-3111 or email to

The damaged generator crankshaft.

Technical team repairing the damaged generators.