Transmission constraints leave Thar plants underutilised

Notwithstanding the full-page ads to mark the successive commissioning of 2,400-megawatt coal power plants in Thar, the state-backed sole electricity buyer is unable to despatch more than 75 per cent of the aggregate capacity. Only 1,800MW of the 2,400MW Thar power plants can be evacuated at any given time owing to transmission constraints. Delays in the construction of the second transmission line between Thar and Matiari Converter Station have resulted in the coal-based power plants sitting idle despite ranking highly on the merit order of efficient electricity producers. Central Power Purchasing Agency-Guarantee Ltd (CPPA-G), which is the government-owned single buyer of electricity from independent power producers, recently wrote a letter to National Transmission and Despatch Company Ltd (NTDC) demanding that CPPA-G be updated about the “progress and tentative commissioning date” of the transmission line. “It is clear that in the present scheme, all four Thar coal power projects cannot be evacuated completely at once, which raises a serious concern on the power evacuation and the capacity of the transmission line,” said the letter seen by Dawn.