This capital city is witnessing around two hours of daily power cut, while the outskirts as well and rural parts are reeling under outages of up to 16 hours a day.
The state government said the crisis would end by the second half of 2013 as new capacities would become operational.
At present, the power shortage is 4,000 Mw.
Worse, the deteriorating power situation has taken a toll on the sales of consumer durables.
Cooking has become a daily challenge for housewives, especially for those outside Chennai.
As there is no power, usage of a mixer-grinder is out of the question.
H Vasanthakumar, founder of Vasanth and Co, a multi-brand consumer electronics retail chain, says sales of consumer electronics such as air conditioners, washing machines and refrigerators are on a fall now, due to the power shortage.
"In rural areas, power cut is almost for 12 hours a day. People have money, but what will you do with a refrigerator if you don't have power most of the time?
"There is a fall of around 20 per cent across these products," Vasanthakumar says.
B A Srinivasa, chief executive officer of Vivek Ltd, another multi-brand consumer electronics retailer, also said there was a decline in sales of consumer electronics.
On an average, there is around 10-15 per cent contraction in the sales of refrigerators and washing machines across the brands.
Some products are continuing the growth, though at a slower pace.
Impact on industries
While big companies are not bothered much about the power situation, the small firms are hit hard.
For instance, units in the engineering hub, Coimbatore, often referred to as Manchester of India, facing 16 hours power cut a day, impacting 30,000 small scale units, have seen a loss of Rs 150 crore (Rs 1.5 billion)
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