Electricity Supply Enterprise (ESE) - UBIFRANCE

Mingalarba! 

1

Electricity Supply Enterprise (ESE) 

Overview of ESE 

July 2, 2013 

Kyaw Hlaing Win 

Executive Engineer 

2


Ministry’s Profile 

Organization Chart of Ministry of Electric Power 

3


Structure of Power Generation, Transmission and Distribution 

Ministry of Electric Power (MOEP) 

Department of Hydropower Planning 

Department of Electric Power 

PLANNING FOR 

GENERATION, 

TRANSMISSION, 

DISTRIBUTION 

Department of Hydropower Implementation 

CONSTRUCTION 

FOR HYDRO & 

COAL POWER 

STATION 

Hydropower Generation Enterprise 

GENERATION 

PRIVATE 

Myanma Electric Power Enterprise 

TRANSMISSION 

Electricity Supply Enterprise 

Yangon City Electricity Supply Board 

DISTRIBUTION 

PRIVATE 4


Electric Industrial Structure of Myanmar 

5


Organization Chart of Electricity Supply Enterprise(ESE) 

6


Image of ESE 

Electricity Supply Enterprise is one of the Enterprises 

of Ministry of Electric Power. ESE received Electricity 

from 230 kV, 132 kV Primary Stations and Generating 

Stations of Myanmar Electric Power Enterprise(MEPE). 

Outside of Yangon Region, 33 kV, 11 kV, 400 V Lines 

and 66 kV Sub-Stations, 33 kV Sub-Stations, 

11/0.4 kV Distribution Transformers are under control 

of ESE. 

Other way, Distribution Sectors of the whole country 

except Yangon Region are ESE’s authority. 

7


Activities and Objectives 

1. To reduce the loss of electricity incurred in distribution 

2. To reduce the power interruption frequency and duration 

3. To distribute more electricity for economic development 

4. To distribute more electricity for towns and villages and 

then electrification by diesel generating sets will be 

eliminated 

5. To promote private sector participation in power 

distribution 

8


Existing Distribution Sub-Stations 

Sr 

No 

. 

States & 

Regions 

Nos. of 

Substation 

66 kV 33 kV 

Capacity 

Nos. of 

Substation 

Sub-Stations 

Capacity 

Nos. of 

Substation 

Capacity 

Nos. of 

Substation 

Capacity 

(Nos) (MVA) (Nos) (MVA) (Nos) (MVA) (Nos) (MVA) 

1 Kachin 5 27 5 12.3 354 59.36 - - 

2 Kayar State - - 29 20.73 129 22 - - 

3 Kayin State 2 50 3 28 165 34.92 16 26.31 

4 Chin - - - - 77 10.8 

11 kV 6.6 kV 

5 Mon State 4 37 32 61.59 617 118 11 1.33 

6 Rakhine State - - - - 104 24.14 3 3.75 

7 Shan State 28 230 43 121.83 1,839 371 4 4.7 

8 Sagaing Region 8 68.30 102 261.74 1,407 287.72 53 11.20 

9 Magway Region 48 579.40 35 155.46 813 207.31 86 17.99 

10 Mandalay Region 18 138 299 865.74 4,051 988.11 83 76.35 

11 Bago Region 17 149 83 253.36 1,715 321 16 3.88 

12 Tanintharyi Region - - - - 116 24.79 11 6.51 

13 Ayeyarwaddy Region 16 217.80 21 49.18 934 202.81 15 8.76 

14 Naypyitaw - - 70 457 1,325 421.53 14 3.07 

Total 141 1,469.50 717 2,274.85 13,292 3,033.56 312 163.85 

9

Sr 

No. 

States & 

Regions 


Existing Distribution Lines 

Lines 

66 kV 33 kV 11 kV 6.6 kV 400 V 

(Miles) (Miles) (Miles) (Miles) (Miles) 

1 Kachin State 113.57 35.32 236.15 - 355.61 

2 Kayar State - 105.54 119.07 - 171.10 

3 Kayin State 66.00 41.11 123.59 13.73 193.37 

4 Chin State - - 136.61 - 116.63 

5 Mon State 12.00 148.08 399.99 6.97 390.23 

6 Rakhine State - - 92.98 - 211.46 

7 Shan State 392.00 332.12 1112.56 - 1410.82 

8 Sagaing Region 61.98 462.15 1092.39 54.41 1177.26 

9 Magway Region 634.11 250.13 817.30 50.75 783.23 

10 Mandalay Region 220.21 1232.60 1480.40 12.70 1516.12 

11 Bago Region 261.81 527.70 1176.80 14.40 1477.68 

12 Tanintharyi Region - - 73.39 5.00 145.29 

13 Ayeyarwaddy Region 305.96 280.78 621.85 1.50 687.09 

14 Naypyitaw - 355.68 442.84 4.10 426.86 

Total 1954.07 3735.89 7689.77 163.56 8707.14 

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Electrification Ratio of Rural Area supply by 

National Grid and Self Generator(Diesel+Mini Hydro) 

70% 

60% 

50% 

Electrification Ratio 

58% 55% 

51% 

48% 

47% 

32 % 

56% 60% 

40% 

30% 

20% 

10% 

11% 

19% 

12% 

26% 

27% 

11% 

16% 

0% 


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Electrification Ratio of Urban Area supply by 

National Grid 


53 % 

120% 

97% 100% 100% 

100% 

78% 

83% 

80% 68% 

71% 

59% 

60% 

43% 

40% 

23% 

20% 

16% 

0% 0% 

0% 

0% 


12

Electrification Ratio based on the number 

of Household 

80% 

70% 

60% 

50% 

40% 

30% 

20% 

10% 

0% 

27% 

43% 


14% 16% 32% 


6% 

25% 23% 

17% 

37% 

24% 

22 % 

11% 9% 

69% 


13

2,7 

Kachin 

6,7 

Kayar 

33 

Kayin 

0 

Chin 

43,5 

Mon 

0 

Rakhine 

72,8 

Shan 

81 

Sagaing 

85,3 

Magway 

290 

Mandalay 

94 

Bago 

66 

Ayarwaddy 

0 

Tanintharyi 

85 

Nay Pyi Taw 


Average Peak Loads of States and Regions 

supply by National Grid(ESE) 

2.7 

350 

Average Peak Loads (MW) 

81 

860 MW 

300 

72.8 

250 

200 

85.3 

290 

150 

85 

6.7 

100 

94 

50 

66 

750 

33 

0 

43.5 

Average Peak Loads (MW) 

14


2000 

1500 

1000 

500 

MW 

Demand Forecast(ESE) 

0 

Year 

1500 

1310 

1140 

990 

860 

2012 2013 2014 2015 2016 

Sr. Year MW Growth 

Rate 

1 2012 860 - 

2 2013 990 15% 

3 2014 1140 15% 

4 2015 1310 15% 

5 2016 1500 15% 

-Result from the growth rate of GDP from fiscal year 2001~02 to 2011~12, Average GDP 

Increasing Rate is 11% and Elasticity Factor is 1.4 which is calculated based on Average 

GDP Increasing Rate & Electricity Demand. 

-According to Elasticity Factor 1.4 , Demand Growth Rate is 15% and Demand Forecasts 

are as shown in Graph and Table. 

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Challenging 

1.Losses (Technical and Non-technical) 

2.System Unreliability and Instability 

3.Insufficient Generation 

4.Various Types and Standardization 

5.Line Faults(Permanent & Temporary) 

6.Poor Power Factor 

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Losses (Technical and Non-technical) 

Losses 

Technical 

Losses 

Nontechnical 

Losses 

1. Line Losses 

2. Service Wire Losses 

3. Induction Meter Losses 

4. Transformer Losses 

5. Reactive Power Losses 

(kVAR) 

1. Illegal Usage 

2. Mistakes of Staffs 

17


Losses % of Power System 

25 % 

G 

E 

N 

E 

R 

A 

T 

I 

O 

6~7 % 

1~3 % 

10~15 % 

5 % 

N TRANSMISSION DISTRIBUTION 

18


Distribution Losses(ESE) per Fiscal Years 

Losses(%) 

25% 

20% 

15% 

21% 22% 23% 

20% 

17% 17% 

15,26% 

10% 

5% 

0% 

Losses(%) 

19


Multi Transformer System 

From Sub-Station 

200 kVA 

750 kVA 

400 500 Meters 800 Meters 400 Meters 400 Meters 800 Meters 400 Meters 500 

250 

250 

250 250 

Distribution Transformers 

11/0.4 kV or 6.6/0.4 

250 Number of Consumers 

Low Voltage Distribution Line (400 V) 

High Voltage Distribution Line (11 kV) 

20


Installing Digital Meters at the pole 

(Pilot Project at Mahar Aung Myay Township) 

Before Installation 

After Installation 

21


Mahar Aung Myay Township’s Losses Curve 

Mahar Aung Myay Township's Losses (Percentage) 

35,00% 

30,00% 

25,00% 

20,00% 

15,00% 

10,00% 

5,00% 

0,00% 

15.56% 

Digital OMR Meter is installing from august 2012 to present day 

in Mahar Aung Myay Township. 

22

Line Faults (Temporary & Permanent) 

Numbers of Interruption 

120 

13 

339 201 


1810 

1071 

We Should Change Bare Conductor to 

Weather Proof Cable, Spaced Aerial Cable 

Load Shed 

Temporary Fault 

Maintenance 

Under Frequency 

Permanent Fault 

System Break Down 

2012, Mandalay 

Temporary 

Faults 

Permanent 

Faults 

Myanmar 

Bangkok, Thailand 

Caused by Animals, Tree Touching 

(Second Main Problem) 

Caused by Storms, Accidents, Leakage of 

Insulators 

23

Poor Power Factor 


Low Efficiency due to 

High Value of 

Reactive Power 

Install Capacitor 

Bank 

Technical Losses due to 

Reactive Power Usage 

24


Installing Capacitor at Medium Voltage Side (11 kV) 

and Low Voltage Side (400 V, Load) 

11 kV,4.4 MVar 

Capacitor Bank 

of Oho-Bo Sub- 

Station 

400 V,100 kVar 

Capacitor Bank 

of Distribution 

Transformer 

25

Sr 

No 

. 


Distribution Lines and Sub-Stations to be 

completed(2012-13 to 2013-14) 

States & 

Regions 

33 kV 11 kV 400 V 

Nos. of 

Substation 

Capacity 

Sub-Stations 

66/11 kV 33/11 kV 11/0.4 kV 

Nos. of 

Substation Capacity Nos. of 

Substation 

Capacity 

(Miles) (Miles) (Miles) (Nos) (MVA) (Nos) (MVA) (Nos) (MVA) 

1 Kachin - 32.87 21.5 - - 1 2.5 14 3.15 

2 Kayar State - 23.22 15.43 - - 1 3.00 9 2.15 

3 Kayin State - 27.19 2.5 - - 1 1.25 7 1.51 

4 Chin - 13.38 12.25 - - - - 10 2.0 

5 Mon State 30 11 12.83 - - 6 21.25 29 8 

6 Rakhine State - 11.01 12.83 - - 1 3 10 2.11 

7 Shan State 143.3 87.21 72.48 - - 9 41.00 97 25.84 

8 Sagaing Region 78.19 11.29 6.4 - - 6 31.25 9 1.80 

9 Magway Region - 17.45 21.16 1 5.00 - - 16 3.66 

10 Mandalay Region 67.48 33.03 26.92 - - 7 55.00 84 17.26 

11 Bago Region 23.44 41.16 13.83 - - 1 5.00 30 7.95 

12 Tanintharyi Region - 33.21 16.35 - - - - 23 5.06 

13 Ayeyarwaddy Region 20.5 14.61 7.8 - - 3 11.00 21 5.00 

14 Naypyitaw 11.73 18.05 8.57 - - 4 35 22 5.55 

Total 375 342 229 1 5.00 39 206.75 367 87.64 

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Regional Development Project for Poverty Reduction 

under Japan ODA Loan(2014-15 to 2015-16) 

Sr 

No. 

States & 

Regions 

66/33kV, 

30MVA 

66/33kV, 

15MVA 

66/33kV, 

5MVA 

Sub-Stations 

66/11kV, 

10MVA 

66/11kV, 

5MVA 

33/11kV 

5MVA 

33/11kV 

3MVA 

11/0.4kV 

200kVA 

Lines 

66kV Line 33kV Line 11kV Line 0.4kV Line 

0.4kV Line 

(Generator) 

(Nos) (Nos) (Nos) (Nos) (Nos) (Nos) (Nos) (Nos) (Miles) (Miles) (Miles) (Miles) (Miles) 

1 Kayar State - - - - - - 2 - - 1.5 25 5 7 

2 Kayin State - - - - - 2 1 11 - 87 9 6 5 

3 Mon State 1 - - - - - 0 - - 0 0 0 0 

4 Rakhaing State - - - 1 - - - 9 61 - 3 5 33 

5 Shan State - - - - - - 0 16 - 20 16 41 

6 Sagaing Region - - - - - - 1 3 - 25 5 3 0 

7 Magway Region - - - - 1 - 0 8 25 31 11 0 

8 Mandalay Region - 1 - - - 2 1 31 32 28 40.5 31 28 

9 Bago Region - - - - - 2 0 5 - 9.5 43 15 6 

10 Tanintharyi Region - - - - - 2 - 32 - 20 68 27 8 

11 Ayeyarwaddy Region - - 1 - - - 0 2 - 0 15 2 0 

Total 1 1 1 1 1 8 5 117 118.0 171.0 259.5 121.0 128.0 

(66/33/11kV)Substation - 18 Nos 11 kV Line - 259.5 Miles 

(11/0.4kV) Distribution Substation - 171 Nos 0.4 kV Line - 121 Miles 

66 kV Line - 118 Miles 0.4 kV Line(Disel Generator) - 128 Miles 27 

33 kV Line - 171 Miles Disel Generator Set - 134 Sets


Private Sector Participation in Power Distribution 

Now, MOEP allows private sector participation not only in generation 

but also in distribution. 

In some townships, distribution business is allowed to local private 

companies for participation and they carry out the operation of the 

distribution at permitted area. 

They take power from the MOEP’s grid and the purchasing price for the 

distribution companies vary in different areas in accordance with the 

average selling price and percentage of the unit loss in permitted area. 

But the tariff for end users is the same as that of MOEP and so they can 

get more profit by trying to reduce distribution loss in their permitted 

area. 

28


Existing Distribution Sub-Stations 

29


Under Implementation Distribution Sub-Stations 

30


Existing Distribution Lines 

31


Under Implementation Distribution Lines 

32


Pilot Project to Upgrade Digital Meter Reading 

33

Thank You for 

Your kind Attention! 

Kyay Zu Tin Bah Tal! 

34

Electricity Supply Enterprise (ESE) - UBIFRANCE

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