Power generation at the Barapukuria Thermal Power Plant in Dinajpur has come to a halt once again after a boiler tube in Unit-1 exploded, officials said.
Although generation was suspended on Saturday night, the incident was disclosed on Monday.
Chief Engineer Abu Bakkar Siddique said a boiler tube in Unit-1 burst on Saturday night, forcing the suspension of electricity generation.
Frequent mechanical faults have disrupted operations at the coal-fired plant, which has a total installed capacity of 525 megawatts.
Of the plant’s three units, only the 125MW Unit-1 had been in operation. The 125MW Unit-2 has remained shut for the past five years, while the 275MW Unit-3 is currently out of service due to overhaul and maintenance.
It may take around five days to resume production at Unit-1 after necessary repairs, as the overheated boiler water needs to be cooled and the damaged tube replaced, he said.
Earlier, on April 25, another tube in the same unit exploded, halting power generation for six days. The unit resumed operation around 10:00pm on Friday after repairs, supplying 55–60MW of electricity to the national grid.
However, within 24 hours, another tube burst, leading to a fresh shutdown.
Each unit contains numerous tubes that carry steam generated in the boiler to the turbine, officials said.
The plant was commissioned in 2006 to utilise coal extracted from the nearby Barapukuria coal mine and support irrigation in eight agriculture-prone northern districts.
Initially, electricity generation began with two 125MW units. A third 275MW unit was added in 2017 to meet growing demand.
However, due to recurring faults and other issues, the plant has never been able to operate at full capacity, officials added.
