1 Alternative energy resources in Bangladesh and future prospect Course No.: MDPS 5203 Course Title: Resource Management and Sustainable Development Course Instructor Nishad Nasrin Associate Professor Economics Discipline Khulna University Khulna Presented by Group B Tapan Kumar Adhikary (MDPS 191526) Sadia Afrin Shoma (MDPS 191527) Nazneen Akter Mohona (MDPS 191531) SadiaYeasmin (MDPS 191532) Sania Akter (MDPS191534) MDPS 1st Year, 2nd Term Economics Discipline Khulna University 2 Contents Introduction Present scenario of energy sector in Bangladesh Energy consumption and demand Leading renewable energy sector in Bangladesh Solar energy Wind power Biomass and biogas Hydro energy Other prospective renewable energy sources Conclusion Introduction Renewable energy is energy that is obtained from renewable resources, which are naturally restocked on a human timescale, such as sunlight, wind, rain, tides, waves and geothermal heat. Electricity is a very important factor in developing the economy and the standard of living of a country. Now a day, Bangladesh is facing energy crisis. In Bangladesh, around 70% of people having lack accesses to electricity and most of them are living in the village. Among them about 40% of them are living in below poverty line. On the other hand climate change puts addition threats to development. To solve this energy crisis we can use different form of renewable energy to generate power. Renewable energy is the energy that comes from different types of natural resources mainly from sunlight, wind, rain, tides, and geo thermal heat, biodiesel, biofuel etc. 3 Present scenario of energy sector in Bangladesh 4 The power generation in Bangladesh mainly depends on natural gas and currently about 79% of electricity is produced from natural gas and coal. However, some researches indicated that the net reserve of gas (i.e. probable) that remains is only 15.32 TCF and the coal reserve is only 2.7 billion tons. . Fig:1 Percentage of electricity generation in Bangladesh from different sources, 2006. 5 Table 1 indicate the standard electricity generation in Bangladesh from assorted resources. In addition, recently the power crisis (load shedding) has been increased up to 950 MW in an average and the crisis growth rate is 35 MW in average per annum since 2007. The current crisis scenario suggests that the future average load shedding may be raised up to 900 MW per year until 2015. Furthermore, the growing pace of energy production is about 5.37% that is lower than the existing requirement which is about 5.43– 6.72% per year during the identical phase. Table:1 Present energy scenario in Bangladesh, as of FY 2011 6 Energy consumption and demand According to energy consumption and demand, the household consumption outline of energy increased from a declining rate from 2001 to 2002 (i.e. except 2005–2006) until recently. The commercial sources also show similar trends. The uses of system energy in the manufacturing services from 2005 to 2006 also have increased after having a falling rate in the year 2003–04. Fig:2 Electricity consumption by category (MkWh) from 2000 to 2008. The national data and statistics from the year 2000–2001 to 2007– 2008 show that energy consumption and demand were the highest during the year 2005–06 and the rate of annual increase was about 15.6% in the commercial services, 13.8% for the households, 13.3% in the manufacturing services and 6.4% was in the rest of the services. Leading renewable energy sector in Bangladesh 7 Bangladesh is blessed with the abundant sources of renewable energy. The required energy demand on power generation can be fulfilled by utilizing unconstrained renewable sources. It is a fortune that gradually more energy production from renewable resources and its diverse technologies are becoming affordable, economically feasible and capable to race against fossil-fuelled technologies in the near future. As the energy consumption and demand are a real concern in Bangladesh, the extent and prospect of the renewable resources like solar power, wind energy, hydro power, biogas and biomass are necessary to be correctly spread in Bangladesh 8 Renewable sources in Bangladesh Fig:3 Ratio of different renewable energy sources in Bangladesh 9 Solar Energy Bangladesh can produce sufficient amount of electricity by solar energy. Because Bangladesh is a subtropical country, 70% of year sunlight is dropped in Bangladesh. For this reason, we can use solar panels to produce electricity largely. Almost every newly built apartment building is now using solar panels along with the grid connection to get support during the load shedding period. Bangladesh could possibly meet its unprecedented energy demand as well as increasing energy security through their progression by acknowledging the potential of solar-energy resources. Therefore, as an alternative of present energy crisis scenario, solar energy such as solar photovoltaic (PV) can resolve a portion of power demand with accompanying deficiency and problems. Recent literatures on solar photovoltaic (PV) suggest that the daily average variation of solar discharge fluctuates following the pattern of dry and wet seasons in Bangladesh from 4 to 6.5 kWh in a square meter. Solar radiation varies from season to season in Bangladesh. The highest level of radiation is accessible from March to April whereas the least from 10 December to January and the average sunlight hours vary between 6.69/7.6 h, 6.16 h and 4.81 h respectively in winter, summer and monsoon seasons. The figure represents that the projected value of solar radiation is the highest in the month of March–May, where 1 (one) square meter area occupies the potential of producing 4–5 kWh/m2 /day. The maximum sunlight hours recorded in Khulna differ from 2.86 to 9.04 h whereas in Barisal it varies from 2.65 to 8.75 h. Fig:4 Average solar radiation in the six divisions in Bangladesh. 11 Wind Power Wind power depicts the process of utilizing wind power to create mechanical power. Wind turbines works to generate mechanical power. Bangladesh have enormous potentials for power generation from wind energy. Economically profitable as maintenance and support cost of wind turbines is very little. Wind energy in the coastal districts of Bangladesh can be a proficient solution of electricity generation. Three wind turbines with a combined capacity of 3MW have been in operation for the last few years. Bangladesh approved a proposal of a 55-megawatt private wind power plant. The government has taken an initiative to set up 3 wind power plants having 50MW capacity by 2021. Wind Power 12 Organizations Installed capacity (Watt) Location Present Status Grameen Shakti 4500 Grameen offices in the Coastal region Functioning Grameen Shakti 7500 Cyclone shelter in the Coastal region Functioning BRAC 900 Coastal region Functioning BRAC 4320 Coastal region Functioning Bangladesh Army 400 Chittagong hill Tracks Functioning IFDR 1100 Teknaf Functioning IFDR 600 Meghnaghat Functioning LGED 400 Kuakata Functioning Table:2 Wind turbine installations in Bangladesh by different organizations 13 Biomass and Biogas Biomass can be viewed as the biggest fuel source in Bangladesh. Biomass comprises of varieties of natural and organic substances. Direct ignition and gasification are two technologies use for biomass energy translation into electrical and heat energy. Bangladesh produces a variety of waste items which can be transformed into economically productive biogas energy to help to defeat the national power crisis. Animal manure and poultry compost are the raw materials for biogas. Some 71,396 biogas plants are currently run in Bangladeshi villages. Government is providing subsidies to set up 44,000 biogas plants which provides clean energy to around 200,000 people. 14 Biomass and Biogas 15 Hydro Energy Hydropower requires both water current and height. The system of this feasible energy is considered as preservation and absorption energy in the outline of automatic stream energy. Kaptai Dam the only hydroelectric power station having the capacity to generate 230 MW electricity. Micro-hydro power transfers hydropower to mechanical power energy and efficient to deliver up to 5–300kW of electricity. Karnafuli, Shangu, Matamuhuri etc. rivers are supposed to be good prospects for installing micro-hydro power. The Installed capacity for renewable energy in Bangladesh stands at 650.53 MW with solar energy accounting for 416MW and hydropower 230MW. 16 Other prospective renewable energy sources Biodiesel Energy: Biodiesel is one of the alternative ways to generate renewable power or energy. Now a day’s fossil fuel depletion and global warming issues are the point of concern around the world. To reduce Carbon emissions and decreasing reserves of fossil fuels, Biofuel can be an attractive source of energy. Next generation biofuels can be a great solution to the global warming and the crying need of fossil fuels. Ocean Wave Energy: Ocean wave energy is generated directly from the waves of the oceans. It is another special type of renewable energy which helps to decrease the harmful emissions of greenhouse gases associated with the generation of power. It can be potentially a significant source of electricity for Bangladesh. Though the main purpose of ocean wave energy is electricity generation, it can also be used for the pumping of water, water desalination etc. 17 Tidal Power: Tidal power or tidal energy is a form of hydropower that converts the energy of tides into electrical power. Among these coastal areas, with 5 meter tides experienced, Sandwip has the best prospect to generate tidal energy . Geothermal Energy: Geothermal is another way to generate power or energy which is renewable power or energy. The thermal energy which is generated and stored inside the earth surface is called Geothermal energy. It is very much cost effective and environmentally friendly. The northern districts of Bangladesh show the prospect to explore the geothermal resources. The demand of electricity in urban as well as in the rural areas are increasing, but our production of electricity is not increasing. A Dhaka based private company namely Anglo MGH Energy has initiated a project to setup the country’s first geothermal power plant with a capacity to produce 200 MW of electricity close to Saland in Thakurgaon district. 18 Conclusion Energy crisis and possible alternative energy sources are really big issues in Bangladesh. Renewable energy is one of the sustainable solutions to avoid the power crisis. Renewable energy sources discussed above can help Bangladesh produce more power in order to reduce Load-shedding problem. It needs to take visionary planning, must attract investment and create mass awareness. The potentiality of renewable energy resources is very good for its national growth, sustainability and socio-economic development. It has a great impact on improving the socio-economic condition of rural people as well as will be a good sign of green energy technology. With the help of these resources Bangladesh can make sustainable development and export electricity meeting the internal demand in the future. Therefore, the Government and the Private sector should work hand in hand to emphasize more on renewable energy source to produce electricity to solve our power crisis problem and sustainable develop our county faster.