The company had reported a profit of Rs 335.69 crore during the corresponding quarter of 2012-13.
Total income declined to Rs 2,058.27 crore during the January-March quarter from Rs 2,300.99 crore a year earlier. Net sales fell to Rs 2,018.49 crore from Rs 2,258.54 crore, JSW Energy said in a statement.
The plant at Barmer achieved an average plant load factor of 34 per cent in the quarter compared with 73 per cent a year earlier, mainly due to non-availability of adequate lignite, JSW Energy said.
JSW Energy said the tendering process for construction of its 240 MW Kutehr project is in progress and the cost incurred on the project up to March 31 was Rs 232 crore.
On a standalone basis, the company's net profit declined to Rs 225.65 crore for the quarter from Rs 334.97 crore a year earlier.
Shares of JSW Energy closed at Rs 53.55, down 4.63 per cent on the BSE.