Adani power supply halves, load-shedding set to worsen

Load-shedding is expected to intensify in the coming days after a unit at Adani Power went offline early yesterday (22 April), slashing electricity imports by almost half and placing additional strain on an already stretched power system grappling with coal shortages and limited gas supply.

According to the Bangladesh Power Development Board (BPDB), a technical fault forced Unit-1 of the Adani Power plant to go offline at 1am yesterday, cutting electricity imports from roughly 1,500MW to 764MW.

The national grid remains under severe pressure as generation continues to fall short of the critical 15,000MW peak demand threshold.

Data from Power Grid Bangladesh shows that power generation reached only 13,198MW against a projected demand of 15,200MW at 1am yesterday.

The nearly 2,000MW deficit – aggravated by rising summer temperatures – mirrors a similar gap recorded last Monday and highlights the system's continuing struggle to stabilise supply.

The outages have disrupted industry and daily life, with rural communities facing the longest blackouts.

Load-shedding varies widely across regions, ranging from around 28% in Gazipur to more than 45% in Savar, while Sylhet is experiencing outages of about 40%. In many areas, electricity is going out several times a day for hours, with rural regions enduring outages lasting seven to ten hours.

BPDB chairman Md Rezaul Karim told The Business Standard the shutdown was caused by a bearing issue linked to the boiler's air preheater.

"Rising vibration in the air preheater bearing prompted the shutdown to prevent further damage," he said.

"Adani has informed us that it may take at least three to four days to bring Unit-1 back online," a BPDB official said.

Data from Power Grid Bangladesh shows that supply from Adani had already fallen to 1,109MW before the shutdown and dropped further to 764MW by 2am as only one unit remained operational.

Yesterday, peak demand during the day was projected at 15,450MW, while generation stood at only 13,112MW, leaving a shortfall of more than 2,338MW.

BPDB officials warned that the disruption in Adani supply could further widen the gap between demand and supply in the coming days.

April-May generation plan under strain

The BPDB had earlier planned to generate more than 17,500MW during April and May to meet peak summer demand. Under that plan, 5,600MW was expected to come from gas, 6,000MW from coal, 1,435MW from Adani Power, 3,500MW from liquid fuel and around 1,000MW through HVDC power imports.

Gas-fired plants – the backbone of Bangladesh's power system – are currently operating far below capacity due to gas shortages.

BPDB data shows gas supply to power plants stood at about 891.6 million cubic feet per day (mmcfd) on 21 April, producing between 4,600MW and 5,000MW of electricity.

Although installed gas-based capacity is around 11,000MW, actual generation rarely exceeds 5,000-5,100MW under current supply conditions.

Officials say that an additional 100-150mmcfd of gas could raise generation close to 6,000MW, but such an increase remains uncertain amid the continuing supply crisis.

Coal plants hit by supply shortage

Coal-fired power generation is also under pressure due to coal shortages. While the earlier plan aimed for 6,000MW from coal plants, actual output has remained far lower, hovering between 4,500MW and 4,600MW.

At 4pm yesterday, electricity generation from coal plants stood at 4,605MW.

The decline in output from the 1,320MW SS Power plant has also complicated efforts to manage load-shedding during the hot and humid days of April. The plant is currently operating below capacity because of a coal shortage, with one unit offline and another producing only about 300MW.

According to BPDB, SS Power is a reliable plant to meet summer demand, but coal shortage forced it to run under capacity. Officials said supply from the plant could improve next week after new coal shipments arrive, expected by Sunday.

One unit of the 1,320MW Patuakhali power plant is also operating below capacity, generating only about 300MW, while the second unit has yet to be commissioned.

Meanwhile, the 1,200MW Matarbari power plant is generating around 900-950MW.

Despite a plan to produce 3,500MW from liquid fuel-based plants, the BPDB has adopted a cautious approach to using furnace oil due to concerns over global fuel supply uncertainties. 

Data from Power Grid Bangladesh shows that generation from heavy fuel oil (HFO) plants reached 2,944MW during the evening peak on 13 April.

Other sources and imports

Yesterday, the power generation mix included about 5,096MW from gas, 4,559MW from coal and around 900MW from furnace oil plants, along with smaller contributions from hydro, solar and wind.

Electricity imports included 922MW through HVDC links and 188MW from Tripura, in addition to about 751MW from the Adani plant after the disruption.

BPDB officials warned of a widening power deficit as shortages of gas and coal, coupled with the underutilisation of furnace oil-based plants, strain the grid. 

With demand projected to climb in the coming weeks, officials further cautioned that outages could intensify nationwide unless fuel supplies stabilise and the Adani unit is swiftly restored to service.