Electricity generation expansion planning with environmental impact abatement: Case study of Bangladesh

This paper analyzes utilization of renewable energy with domestic coal in place of import coal and oil in Bangladesh Power System from 2010-2030. Therefore, the modelling of long-term renewable and domestic coal utilization is examined in terms of expansion cost and environmental impacts. The results show that in 2030, the required electricity generation to fulfil future demand is estimated 162 TWh. Under the BAU scenario, the share of coal is 33% of total electricity generation mix. However, under the null coal import scenario the installed power plant from renewable sources increase to be 47 GW and coal utilization decreases to be 35 GW or 16% of total electricity generation share. The null coal import scenario reduces coal utilization by up to 52%. Under the limited coal and oil import scenarios, the share of coal becomes 60 GW or 27% of total electricity generation mix. In the economic and environmental perspective, more renewable based power plants need to be developed in order to reduce import coal and oil utilization in power generation. In the end of planning horizon, the BAU scenario emits as much as 96 million tons of CO2 equivalents, while the null coals import scenario successes to reduce emissions by 39 million tons from the BAU scenario's emissions.