India, Oct. 17 -- State-run Nalco on Wednesday said coal shortages have severely impacted its aluminium production.

"Short supply of coal has severely impacted Aluminium production of NALCO and also the cost of power, as the power purchased from the grid is costly as compared to the power produced by NALCO at its CPP," the PSU said in a statement.

Presently, three units of Nalco's Captive Power Plant (CPP), each of 120 MW capacity, are under shutdown and further one more unit will be shut due to coal shortage, it said.

Nalco fully depends upon Mahanadi Coalfields Ltd (MCL) -- a Coal India arm -- for supply of coal to its CPP at Angul and steam and power plant at Damanjodi.

Nalco's requirement of coal for its CPP at Angul is around 17,00...