Shimla: Nathpa Jhakri hydro project remained shut for the fourth day on Sunday disrupting power supply to the northern states.
The 1,500 MW SJVNL project was closed Thursday as the silt level suddenly rose more than the permissible limit of 4,000 ppm due to heavy rains.
The power generation was stopped as silt content in the Sutlej river crossed 36,000 ppm, Vijay Verma, deputy general manager of the SJVNL said.
He said the silt level was still around 30,000 ppm and at this stage the generation couldn’t be resumed as high silt content could damage the turbines.
This is the fourth closure of the plant in this fiscal. Earlier, the plant was closed for five days from July 26 due to rise in silt level.
The closure of power generation has caused a daily loss of Rs.9 crore.
The hydro project daily generates 38 million units of electricity which is supplied to Punjab, Haryana, Chandigarh, Himachal Pradesh, Delhi, Jammu and Kashmir, Rajasthan, Uttar Pradesh and Uttarakhand.