Though demand for electricity is increasing all over the world day by day, the production of electricity cannot fulfill the required demand. In the present situation, most of the electricity comes from non-renewable energy source like gas, coal, oil, etc. For this reason, electricity production is unsustainable in Bangladesh. Bangladesh is a downstream country with flat land. By geographical location, Bangladesh has a little amount of hydropower (Kaptai-230 MW (Active), Sangu-100 MW (Proposed), Matamuhuri-100 MW (Proposed) and Mohamaya-23 to 65 MW (Proposed). In 2017, the present electricity generation capacity is 13621 MW in which gas contributes 62.62% of total electricity generation. If gas contributes to fulfilling the future electricity demand, the stock of gas will be finished between 15 to 20 years.

This Study aim is to save our natural nonrenewable resource by using a renewable resource to fulfill the future electricity demand and what will be the strategy to fill up this demand for electricity. For that, our study choice is the hydropower potential in South Asia which can reduce our demand for electricity. This study analyzes to get the future electricity demand for Bangladesh. The actual demand for electricity of Bangladesh in 2035 will be 87991 MW. But the electricity production of Bangladesh couldn?t achieve that required target. In Bangladesh Government master plan for electricity says that Bangladesh needs to produce extra 11600 MW generation capacity for next five years. But there is also a loss in generation capacity. Almost 30% loss remains in electricity generation. The power system has been expanded to keep pace with the fast-growing demand. On the other hand, there are two power plant Rampal Power Plant (Fuel type: Coal) and Rooppur Nuclear Power Plant are proposed and are in under construction which generation capacity would be respectively 1320 MW and 1200 MW which will be 2520 MW in total. But it is not enough for the future and also nonrenewable. With the link to the vision of Government and according to the aim of this study, we want to remain constant the use of gas instead of importing hydropower. So, it needs to remain constant the present electricity generation capacity by Gas with others. But the power plant projects which have already proposed to construct, they need to add in the generation. After all, calculating loss, this study assumes and add 2000 MW extra Electricity to the maximum generation of electricity after 2017.

By considering the above situation and calculating loss between maximum electricity generation and the generation capacity and adding extra production, we find that the electricity generation in 2035 will become 16495 MW. As Bangladesh has the low generation capacity with losses, so it can?t be possible to reach the goal of demand. If the present situation of electricity generation capacity of Bangladesh remains same for future, the required electricity to fulfill the actual demand in 2035 will be 80025 MW. This study tries to make some strategy to import extra hydropower from those countries to Bangladesh. From this study and literature review, it is found that Bhutan already exports electricity to India. So, Bangladesh has also the opportunity to import electricity from Bhutan like India. Bangladesh can also import electricity not only from Bhutan but also from Nepal, Myanmar, India, and China. Among these countries, Bangladesh is one of the biggest potentials buyers of hydropower from those countries.