Present Situation of Electrical Energy Demand, Supply Projection of Them and Renewable Energy Utilization and Progress

1. Present Situation of Electrical Energy Demand, Supply
Projection of Them and Renewable Energy Utilization and Progress
Md. Nazmul Islam
Email:
nazmulislam1581@gmail.com

2. OUTLINES
 Objectives
 History of Electricity in Bangladesh
 Power Generation
 Demand and Supply
 Projection of Demand and Supply
 Retail Consumption
 Losses
 Renewable Energy
 Conclusion

3. Main
Objectives
Demand
Supply
Renewable
Energy
used
Shortage
of Energy
Projection
Generation
OBJECTIVES

4. History of Electricity in Bangladesh
 In the time of Nawab Khwaja Ahsanullah, electrification
of the capital city Dhaka began in 1901.
 In 1948, Electricity Directorate was established in East
Pakistan.
 In 1971, After the independence of Bangladesh only 3%
of population had access to electricity.
 At present 93% of the population had to access
electricity .

5. Generation
Capacity
(MW)
Present Generation
(public) 8845
Present Generation
(private) 6197
Import 660
Under Construction 7554
Proposed 2682
Present
Gneration
(public)
34%
Present
Gneration
(private)
24%
Import
3%
Under
Constructio
n
29%
Proposed
10%
Present Situation of Power Generation
Present Gneration (public) Present Gneration (private)
Import Under Construction
Proposed
PRESENT SITUATION OF ELECTRICAL POWER GENERATION

6.  The demand of electricity was 3900 MW in 2000 and
supply only 2030 MW.
 The demand and supply has increased to 14014 MW and
8845 MW respectively in 2018.
DEMAND AND SUPPLY
Year
Grid system
Demand
(MW)
Grid Supply
(MW)
2000 3900 2030
2002 4000 2400
2004 4300 3103
2006 4730 3675
2008 5569 4033
2010 6454 4200
2012 7518 4960
2014 9268 6434
2016 11405 7360
2018 14014 8845

7. 0
2000
4000
6000
8000
10000
12000
14000
16000
1995 2000 2005 2010 2015 2020
Demand and supply Curve
Grid system Demand (MW) Supply (MW)
DEMAND AND SUPPLY(Continued)
 The Data table and graph
shows the demand is
always greater than
supply.
 We need to overcome
these shortage within a
few years.

8. Newton’s Extrapolation
Year
Grid system
Demand (MW)
Supply (MW)
2020 16623 10730
2022 19232 13015
2024 21841 15700
2026 24450 18785
2028 27059 22270
2030 29668 26155
2032 32277 30440
2034 34886 35125
2036 37495 40210
𝑌𝑛+1 = 𝑌𝑛 +
𝑌𝑛 − 𝑌𝑛−1
𝑋 𝑛 − 𝑋 𝑛−1
× (𝑋 𝑛+1 − 𝑋 𝑛)
 Yn = Present demand/supply
 Xn = Present Year
 Yn+1 = Demand/Supply of Projection
 Xn+1 = Year of Projection
𝑌2020 = 𝑌2018 +
𝑌2018 − 𝑌2016
𝑋2018 − 𝑋2016
× (𝑋2020 − 𝑋2018)
=14014+
14014−11405
2018−2016
× (2020 − 2018)
= 16623
Projection of Demand and Supply

9. 0
5000
10000
15000
20000
25000
30000
35000
40000
45000
1995 2000 2005 2010 2015 2020 2025 2030 2035 2040
PROJECTION OF DEMAND AND SUPPLY
Grid system Demand (MW) Supply (MW)
Projection of Demand and Supply(Continued)

10. All Retail Consumption
Domestic
53%
Agriculture
3%
Commercial
9%
Industrial
33%
Others
2%
Domestic
Agriculture
Commercial
Industrial
Others

11. All system loss (2006-2018)
Year
Distribution
Loss (%)
Transmission
loss(%)
System
Loss(%)
2006 19.06 4.97 21.25
2007 16.58 3.99 20.25
2008 14.43 2.9 18.45
2009 13.57 2.52 16.85
2010 13.10 2.24 15.73
2011 13.06 2.18 14.73
2012 12.15 2.35 14.61
2013 11.95 2.75 14.36
2014 11.89 2.72 14.13
2015 11.17 2.74 13.55
2016 11.01 2.73 13.10
2017 10.92 2.71 12.74
2018 9.89 2.76 11.87

12. Renewable
Energy
source
Achievements
in 2019 (MW)
Target
production
in 2030
(MW)
Potential
(MW)
Solar PV 210 500 5045
Wind 78 450 2000
Biomass 12 50 274
Biogas 7 10 -
Hydro-
electric
230 400 -
Others 13 20 -
Total 550 1430 -
RENEWABLE ENERGY :
TARGETS OF POWER GENERATION FROM RENEWABLE ENERGY :

13. RENEWABLE ENERGY (Continued):
Solar PV: Bangladesh is subtropical country. The daily solar radiation is 4-6.5 kWh/m2.
So, it makes the use of solar panels very effective . The government
introduced a scheme known as solar home systems (SHS) to provide
electricity to households with no grid access.
Wind: The average wind speed in Bangladesh between 3-4.5 m/s. There is a good
opportunity in island and coastal areas for the application of wind mills for
pumping and electrification.
Biomass: The common biomass resources available in Bangladesh are agricultural crop
residues, wood residues, animal waste and municipal solid waste, etc.

14. RENEWABLE ENERGY(Continued) :
Biogas: Bangladesh has the potential to generate 5204 Mm3
of biogas which could add around 7.30 GWh electricity
to the national grid. The energy starved Bangladesh
needs to promote biogas technology to reduce the
dependence on conventional energy system as well to
ensure energy security for the future.
Hydro-electric: Power can be produced through using the
gravitational force of falling or flowing water. It
is the most widely used form of renewable energy.
The dam at Kaptaimukh, built on the River Karnafuli
in the Chittagong Hill Tracts (CHT), is the only
hydro-electric power project in Bangladesh.

15. CONCLUSION
 Use of captive power.
 Reduce system, distribution and transmission loss.
 Use Renewable Energy.
Taking these steps , we hope to solve shortage of electricity and our
projection will be successful.

17. Thanks Everybody