Several south Delhi colonies witnessed long power cuts as Delhi Transco's two transformers in Okhla developed a technical snag.
The situation worsened as the state-run power generation company, NHPC cut supply to BSES by 200 MW due to non-payment of outstanding dues, resulting in more power cuts, officials said.
While the private power distribution company claimed they were able to meet the demand, there were power cuts ranging between one and four hours in several residential and commercial areas across the city.
Meanwhile, power demand in the city touched a new all-time high of 5,330 MW.
The previous highest was recorded on Thursday at 5,271 MW.
"The maximum power demand in the city touched 5,330 MW, which is a new record of power consumption in Delhi," a power department official said.
The power demand in the city has been increasing at a rate of around eight per cent in the last few years and as per projection of the government, it will reach 5,500 MW this summer.
As per official figures, the power demand in 1905 was just 2 MW which had increased to 27 MW in 1947.
The peak demand had touched 1,536 MW in 1992 while in 1997 it increased to 2,303 MW and further to 2,879 MW in 2001.
In 2002, the power demand had gone up to 3,097 MW while in 2007, it touched 4,030 MW. While the demand went up to 4,408 MW in 2009, it touched 4,720 MW in 2010.
Last year, the demand had gone up to 5,028 MW, which was the all-time high demand till it was breached when the figure touched 5,032 MW on May 25.