Even as it continued to overdraw 300 megawatts (MW) of power on Wednesday, Punjab stuck to the statement that it was not responsible for the grid failure that paralysed north India for the second consecutive day on Tuesday. The state power body rather pointed at Uttar Pradesh (UP) and Haryana for the blackout and released data to support its claims.
Punjab State power Corporation Limited chairman KD Chauhdhery cried foul over charges of the state causing the failure. He said that at the time of the first failure, the frequency of the grid was 50.46Hz and Punjab was drawing only 5.5% (250 MW) more power. He added Haryana overdrew 25.5% more power, while the figure for UP was 20.8%.
Giving details of the second grid failure, Chaudhrey said frequency at the time of the second failure was 49.7Hz and Punjab was drawing 1.2% (51 MW) more power than it was supposed to, whereas the figure for Haryana was 22.4% and UP 6.4%. "The data clearly shows that UP and Haryana are the main states that caused the grid failure," he said.
Chaudhrey added that Punjab had to impose fewer power cuts even after keeping the overdrawal within limits because the management had made short-term power purchases of 3,200 mega units (MU) well in advance and, after fearing deficient rainfall this year, made more short-term power purchases of 1,100MUs.The PSPCL chairman said the other states' failure to prepare for a deficient monsoon had led them to overdrawing power.
He added that Warning-C, which is considered as serious, had never been issued by Northern Regional Load Despatch Centre to Punjab between July 10 and 17 July. UP was issued that warning four times, he said.
Chaudhrey informed that the figures clearly indicated that overdraw by PSPCL was "very well within limits" and power regulations department continuously monitored the load and ensured grid discipline at all times. CMD said that deficient rain had forced PSPCL to impose power cuts and appealed consumers to reduce AC load to bridge the gap between demand and supply. He said that if even half of AC load was reduced by consumers, power could be supplied without any cuts.