The company had reported net profit of Rs 325.47 crore in the April-June quarter of last fiscal, 2014-15.
Its total income for the first quarter of 2015-16 was Rs 2,106.99 crore, as against Rs 2,558.32 crore in the year-ago period - down 17.64 per cent.
"The decline in profit is primarily due to lower generation and a marginal decline in average realisation," JSW said in a statement.
During the quarter, the net generation declined to 4,480 million units (MU), as against 5,006 MU in the previous year.
"The lower PLF was due to planned maintenance shutdown of identified units at Ratnagiri and Vijayanagar and weak demand leading to frequent back down," the company said.
The merchant sales during the quarter were 1,990 MU and the sales under long term PPA stood at 2,490 MU.
While Vijayanagar achieved a PLF of 81 per cent, Ratnagiri unit operated at a PLF of 66 per cent and Barmer at 80 per cent, against a PLF of 98 per cent, 68 per cent and 92 per cent, respectively in same quarter last fiscal.
JSW Energy Chairman Sajjan Jindal today said the company will complete the acquisition of the 300 MW Baspa II and 1,091 MW Karcham Wangtoo hydroelectric projects from Jaiprakash Power Ventures by this fiscal end.
