ISLAMLAMAD - The demand of Uninterruptible Power Supply (UPS) is on the peak due to increasing power outages and high mercury level in the Capital but are not available even at a high price. The citizens are in much need of some stand-ins devices to meet the long-hours load-shedding schedule as UPS benefits the people at micro level and people can afford to purchase it as it is available at low prices and the device doesn't require any stimulate. But some people are not satisfied with its result, as most of the time, batteries cannot be charged properly. During a survey conducted by TheNation in the markets of the city revealed that there are two types (local and of China) of UPS available but the demand of local product is higher having longer back time.     Naseer, a consumer, said as it was the beginning of the hot season and timing of power shortage will further increase. In such a situation it was quite difficult for the citizens to live without the electricity. "We cannot afford to buy electric generators, as its prices and expenditure are very high, he added. Munir told TheNation that he purchased UPS from Rawalpindi but he couldn't get the result as he had heard from different people. The UPS cannot work after 40 to 50 minutes whether it was fully charged. He also advised the people not to waste their money by purchasing it. M. Arshad, a shopkeeper in the market, said that people have to opt generators and UPS. Most of them prefer UPS because this is only one time consumption as compared to generators, which are on petrol or diesel. He further said that because of the UPS the prices of batteries, that were used in the vehicle, were shoot up and now available in the market at almost double price as compared to the last year. A customer could manage to light up two tube-lights and two ceiling fans at a time for almost six hours with UPS having 105 ampere per hour battery capacity, which costs around Rs 9,500. Another dealer, Sohail at Blue Area, said that the UPS could easily be repaired and battery needed change of water after every two to three months, which was not costly. He said people could also run a computer along with fans and tube-lights with UPS having more capacity. "It is boom time for our business from March to August as in this time the load-shedding will further increase." The UPS gained popularity when power failures became a regular feature in the city, he added.  At macro-level UPS are not useful as in it the electricity is stored not generates which could not fulfil the shortage as our country is facing power shortage of 3,000 mega watt per day which will increase to 4,000 mega watt in the next couple of months. "If the demand of UPS remains the same the shortage of electricity would further increase", said Pervaiz, an official of WAPDA.