"Plant load factors of power companies are unlikely to improve in 2016-17 from 61.7 per cent in the first nine months of 2015-16," it said in a report.
PLF is the ratio of the actual output of a power plant over a period of time and its output in case it operates at full capacity.
All-India thermal plant PLFs have been consistently declining and have fallen 21.5 per cent since the peak of 78.6 per cent in 2007-08, it said.
India has added 80 GW of coal-based generation capacity over FY11-FY15, which creates room for higher generation, given the improvement in domestic coal supply and low international coal prices.
Also Read
However, industrial demand, which accounts for 40 per cent of the total pie, has so far witnessed a sluggish growth. Moreover, the current focus on use of efficient devices (LEDs and agricultural pumps) is also leading to lower demand.
"In the Corporate Outlook FY17... Ind-Ra has maintained a stable-to-negative outlook on the power sector for 2016-17," it said.
A significant chunk of electricity sales goes to commercial or industrial consumers, and a pick-up in demand in industrial activity is necessary for higher electricity demand.
Ind-Ra expects industrial demand growth to stay muted at 4-5 per cent in 2016-17. The residential segment is likely to see a healthy demand clip of 7-8 per cent. Agricultural demand is likely to grow 2-3 per cent since it would depend more closely on the monsoon and the switchover to energy-efficient pumps.
"However, given the installed capacities, increased coal output and the low imported coal prices, there is a potential for higher generation growth , but given that demand is unlikely to increase significantly, the generation growth will be in the range of 5-6 per cent in 2016-17," it said.