Around 30 crore people have been affected due to the power failure. Nearly all passenger trains in North India have been affected. Trains like Shatabdi and Rajdhani are running late by four to five hours. In Delhi, the metro could not run during the morning rush hour, causing huge traffic jams as desperate commuters hit the roads instead. By 9 am, metro officials said the services were back to normal.In the capital, Metro services took a hit and could function with only 25 per cent trains since starting services on Monday morning at 5 a.m.
Power supply to the Prime Minister's house and hospitals like the All India Institute of Medical Sciences was ensured by switching to power from Bhutan, and from power sourced from the Badarpur Thermal Power plant.
In Delhi, officials of the power department said emergency power is being supplied through the eastern and western regions, and efforts are being made to ensure there is no disruption to essential services like the hospitals, Metro and the installations of the Delhi Jal Board.
Though there were no reports of flights being disturbed by the power cuts, some services at the airport were affected.A three-member panel will look into the failure of the Northern Grid, which led to power outages throughout the region on Monday, and submit its report in 15 days, Power Minister Sushilkumar Shinde said. "We have set up a three-member committee to look into the collapse of the Northern Power Grid. The panel will submit its report in the next 15 days," Shinde told reporters.
Central Electricity Authority Chairperson AS Bakshi, Power Grid Corporation Chairman and Managing Director AM Nayak and Power System Operation Corporation Chief Executive Officer SK Soonee will make up the panel.
On the possible reasons for the collapse, the minister said they would be known once the panel submits the report.
Responding to a query on whether over-drawal by states led to the grid's failure, Shinde said, "It cannot be said whether over drawing by states is one of the reasons or there is any other reason. The panel will find out.
Earlier today, power supply was disrupted in seven states from 2.32 a.m. It is now partially affected in Delhi and Rajasthan. We are in the process of restoring the supply," VV Sharma, general manager of Power System Operation Corporation Limited, said.A major collapse of the Northern Grid had happened in 2001-02, he said.
There was a failure due to fog moisture in January 2010.
The Northern Grid, which caters to about 28 per cent of the country's population, covers nine regions -- Punjab, Haryana, Rajasthan, Delhi, Uttar Pradesh, Uttarakhand, Himachal Pradesh, J&K and Chandigarh.
The normal frequency at which electricity is transmitted through the Northern Grid ranges from 48.5 to 50.2 Hz. At the time of the collapse around 2.35 AM, the grid frequency was 50.46 Hz, a few notches above normal.
This could have tripped the supply, Shinde said.The company, a subsidiary of the state-run Power Grid Corporation of India, which manages the grid, said effort was underway to seek supplies from the eastern and the western regions, even as power to the railway system had been partially restored.
"The restoration of the grid may take a few more hours. The engineers have been trying to restore it since early morning. We are giving first priority to public services like hospitals and transport," Sharma added.