Being aware of the finite stock of fossil fuels and their
negative impact on the environment, countries across the world are now leaning
towards renewable energies like solar energy, wind energy, bio-energy,
hydropower, geothermal and ocean energy in efforts to ensure energy
security.The use of renewable energy has risen considerably in recent times,
both in developed and in developing countries. REN21's Renewables 2014 Global
Status Report indicates that renewable energy provided an estimated 19% of
global energy consumption in 2012 compared to 16.7 % in 2010. More than hundred
countries now have renewable energy policy of one kind or the other.
Bangladesh receives an average daily solar radiation in the
range of 4-5 kWh/m². Encouraged by the availability of solar radiation, Power
Division has initiated a programme to generate 500 MW of solar-based
electricity. Under this programme, projects for electrification of rural health
centres, educational institutions, E-centres at union levels, religious
establishments and remote railway stations are required to be implemented by
authorities concerned. Private sector is expected to implement commercial
projects like Solar Irrigation, Solar Mini Grid, Solar Park and Solar Rooftop
applications.
The government is gradually meeting part of the lighting and
cooling load of public offices by installing solar panels. The national
capacity of solar power development currently exceeds 150 MW. Most of the
capacity addition is from Solar Home Systems (SHS) implemented by
Infrastructure Development Company Limited (IDCOL), a government-owned
financial institution. Until recently, more than 3 million SHSs have been
installed with aggregated capacity of about 135 MW. The international community
recognises Bangladesh's SHSs as the fastest growing solar power dissemination
programme in the world.
Today, hydropower makes up the largest share of electricity
generated from renewable sources as the global capacity reaches 1,000 GW. The
only hydroelectric power plant was established at Kaptai with present installed
capacity of 230 MW. Bangladesh Power Development Board (BPDB) identified two
other sites at Sangu (140 MW) and Matamuhuri (75 MW) for large hydropower
plants. Further exploitation of hydropower appears to be limited due to flat
terrain of Bangladesh. Several studies have identified a few sites having
potential ranging from 10 kW to 5 MW, but no appreciable capacity has yet been
established.
Bio-energy is energy derived from any form of biomass,
including bio-heat, bio-power, and bio-fuel. Bangladesh Agricultural University
and Bangladesh Council of Scientific and Industrial Research (BCSIR) launched
biogas technology in the country in early 1970s. Against an estimated potential
of 4 million biogas plants about 70,000 plants have been established so far
throughout the country. Tapping potential of biomass, two rice husk-based power
plants of 250 kW at Gazipur and 400 kW at Thakurgaon, and seven poultry
waste-based power plants at different sites with aggregated capacities
exceeding 1 MW, have been established at the initiative of private sector with
support from IDCOL.
Except for two pilot wind-power plants at Muhuri Dam (0.9
MW) in Feni and Kutubdia Island (1.0 MW) in Cox's Bazaar, comprehensive
assessment of wind power potential is still ongoing. BCSIR, LGED, Bangladesh
Centre for Advanced Studies, German Development Cooperation (GIZ) and Renewable
Energy Resource Centre of Dhaka University assessed wind resource, at some
length, in a few sites. Currently, Power Division is implementing a project
with support from USAID to develop wind map for Bangladesh. Potentials of ocean
and geothermal energy are yet to be explored in Bangladesh while global
capacities reached 530 MW and 12 GW respectively.
Renewable energy is no more an ambitious expensive venture.
Because of high research and development cost of renewable energy, it continues
to lag in relation to conventional energy. For example, cost of solar PV panels
declined more than 60% in the past three years. International Energy Agency
projects that electricity generation from renewables may overtake natural gas
by 2015 and perhaps coal by 2035.
However, due to lack of clear knowledge base on renewable
energy and their co-benefits, many people, even some energy professionals, are
skeptical about the prospect of renewable energy. They mostly exaggerate the
price of renewable energy and are of the opinion that renewable energy
technologies are not mature enough to become viable options. Consequently,
negative perception persists over renewable energy, hindering wider deployment.
Reliable information and best practices can overturn doubts,
and show that renewable energy is the promising and sustainable energy option
for Bangladesh, while newly established SREDA can play a vital role in catering
to the same.
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