April nighttime peak demand is expected to hit 217 gigawatts (GW), up 6.4% on the highest nighttime levels recorded in April last year.
"The situation is a little stressed," Grid Controller of India Ltd (Grid-India) said in the note dated Feb. 3.
While Indians looking to beat the heat this summer will want steady power for their air-conditioners, night time outage risks threaten industries that operate around the clock, including auto, electronics, steel bar and fertiliser manufacturing plants.
"If there is a power cut even for one minute, paper pulp gets blocked and messes up the delicate process and causes hundreds of thousands of rupees in losses," said P.G. Mukundan Nair, former chief of an Indian paper industry body who has been in paper manufacturing for nearly three decades.