Prospects of solar power

Bangladesh

 

Ahmed Sobhan
10/17/2006
 

          WHEN the country is going through a severe power crunch, it is relevant to ponder the steps that need to be very urgently considered to augment power production. There are, of course, two major sides to be considered. The major urban centres are all supplied by conventional electricity from the national grid. The rural areas where electricity is being provided, also depend considerably on supplies from the national grid. But the urban areas get top priority in such supply. Therefore, in the present power-starved conditions, the authorities are supplying the bulk of the insufficiently produced electricity to urban centres leaving the rural areas grossly undersupplied or not supplied at all.
This situation would not arise if the rural areas became gradually self sufficient in producing electricity on their own and their best option in this regard would be solar power. A report in this paper last Saturday described how 50,000 people in the rural areas of Natore are being benefited from the use of solar power. Apart from the non-dependability of adequate supply from the national grid, there are many rural areas where it would take no one knows how long for power from the national grid to reach. This is because of vast resources that would have to be mobilised for laying infrastructures for transmitting conventional electricity to these areas. For such places, therefore, off-grid power or solar power remains the best option. Even a medium-sized power plant requires a great deal of investments and takes years to be set up and made operational. But a house in a remote part of Bangladesh can have its needs of electricity met instantly from a single solar panel set up on its roof top.
Access to electricity in Bangladesh is one of the lowest in the world. The coverage at present stands at about one third of the total population. The rural areas of Bangladesh, where nearly two-thirds of the population live, are seriously deprived of electricity. As the conventional national grid-fed electricity can only cover 15 per cent of the total households, tapping different sources of alternative energy can be used for the benefit of the people. The government in its national energy policy clarified its vision that it wants to bring the whole country under electricity supply by the year 2020. But major extension of electricity supply through grid expansion is not a viable option for most parts of Bangladesh in the foreseeable future mainly due to inaccessibility and low consumer density. There are many areas in the country where electricity from the national grid will not reach in the next 30 years. Some experts say that at the current rate of conventional electrification, it will take decades to provide access to electricity to all people in the country. In contrast, favourable natural conditions like sufficient sunshine and wind-speed exist for production of electricity from the sun's ray's and the wind on a regular basis throughout rural Bangladesh. To fulfill the vision of universal electrification, these alternative energy sources will have to take a vital role for off-grid electricity generation.
Of all the options, solar electricity has so far been considered the most easy and viable option. Solar energy's attributes of needing no fuel, high durability and reliability and being able to operate for prolonged periods without maintenance, make it economical for all types of remote applications. Different private business houses have started introducing solar photovoltaic systems in rural areas. According to a report, sometime ago, Infrastructure Development Company Ltd. brought more than 80,000 rural households under the solar power system, far from the power grid, from January 2003 until now. Other entrepreneurs need to be encouraged towards producing solar electricity for a wider impact.
There are many areas in the country where electricity from the national grid will not reach in the next 30 years. The best option remains for these areas to be supplied by solar power through small cooperative means.

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