Yangon City Electricity Board - UBIFRANCE

Infrastructure of Yangon City Electricity Supply Board (YESB)
Dr. Aye San Dar Myo
Executive Engineer
3 rd July, 2013

Introduction to YESB

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
Myanma Electric Power
Enterprise
Electricity Supply Enterprise
Yangon City Electricity Supply
Board
GENERATION
TRANSMISSION
DISTRIBUTION
PRIVATE
PRIVATE

Established Year
>> 15 th May 2006
Mission
• To supply quality electricity to Consumers in Yangon Region
• Planning, development and maintenance of distribution system of Yangon
Objectives
• To reduce distribution losses
• To maintain stability and quality
• To reduce the electric power interruptions
• To increase the revenue of organization

Constit
ution
Appointed
Officer Daily
wages %
Vanca
ncy
Chairman
Vice Chairman
Officer 378 308 - 82 70
Person
nel 4465 3328 822 74 1137
Total 4843 3636 822 75 1207
Secretary
Joint Secretary
Chief Engineer
Administration
Engineering
Finance
Material Planning
Eastern District Western District Northern District Southern District
404541 consumers 233185 consumers 231656 consumers 83781 consumers
Total Consumers 953163(up to now)

Location Map of YESB

Existing Distribution System of YESB

Single Line Diagram of 66 kV & 33 kV Distribution System

Sr.
Existing Substations and Transmission Lines
Types
(kV)
S/S
(no.)
Transformers
(no.)
Total
MVA
Transmission
Lines (km)
1. 230 7 14 1320 120.16
2. 66 22 31 796.5 163.97
3. 33 309 414 2206.715 1264.35
4. 11 4652 - - 1560.1
5. 6.6 3472 - - 1059.36
6. 0.4 - - - 5162.38
Total 8462 9330.32

Condition of Electrification

Up to 2013 April
Condition of Electrification
• 11/6.6-0.4 kV Transformer - 8,124 nos.
• Consumers - 953,163 nos.
• Annually increasing rate of
• Distribution Transformer - 640 nos. (9%)
• Annually increasing rate of
• electricity consumers -58,700 nos. (7%)
• Electrified family unit -1,238,168 nos. (74%)
• Un-electrified family unit - 285,005nos. (26%)

Rural Electrification
In Yangon division,
• The total number of villages - 2,090 nos.
• The numbers of villages electrified - 505 nos.
• The villages to be electrified - 1585 nos.
The remaining 1,585 villages will be electrified during
implementation of 30 years long term plan.

Feature of Consumption

Peak load (MW) over 3 years

Hr Yangon
Load
Industry
Zone
Hourly Load Curve of Yangon On 17 th June 2013
(24)
Hour
Public
1 464.6 58.45 402.7
2 446.9 79.55 363.9
3 416.6 59.52 353.6
4 437.2 83.4 350.3
5 492.1 75.14 413.5
6 616.4 74.75 538.2
7 689.8 89.75 600.1
8 687.6 119.66 567.9
9 768.4 157.34 611.1
10 812.3 159.51 652.8
11 831.9 157.35 674.6
12 777.4 134.34 643.1
13 710.9 124.15 586.8
14 746.2 153.2 593.0
15 766.5 157.9 608.6
16 763.2 140.63 622.6
17 782.1 111.76 670.3
18 781.5 121.84 656.2
19 779.9 104.47 671.9
20 771.6 63.47 704.6
21 758.5 109.2 645.8
22 753.0 78.43 671.1
23 663.5 68.4 591.6
24 553.7 59.73 490.5

Comparison of Generation & Consumption in 2012 and 2013
MWh
35000
31054,23
30000
25000
25090,3
20000
15000
10000
5000
0
16271,8
12312,8 12337
Generation Yg Consumption outside Yg
Consumption
14782,43 17.6.2012
17.6.2013

Location Map for Industrial Zones

List of Industrial Zones and their Consumption
No.
Industrial
Zone
Installed
of S/S
(MVA)
Max
Load
(MW)
1 Myaung Ta Gar 100 32.3
2 War Ta Yar 10 1.8
3 Shwe Pyi Thar 55 21.2
4 Shwe Lin Pan 35 12.9
5 Hlaing Thar Yar 75 42.1
6 Thaketa 10 2.25
7 Dagon Port 30 8.99
8 South Okkalarpa 10 2.3
9 South Dagon 100 18.1
10 East Dagon 25 7.08
11 North Okkalarpa 10 4.8
12 Shwe Pauk Kan 25 5.21
13 Yangon Industrial 20 4.5
14 Min Ga Lar Don 5 2.75
15 Pyin Ma Pin 10 2.5
Total
475 168.78
New Plan of Industrial Zones
No.
Industrial
Zone
1 Thilawar
2 War Ta Yar (Extension)
3 Anawyahtar
4 Shwe Thanlwin
5 Mya Sein Young
6 East Dagon (Extension)
7 Dagon Port (Extension)
8 Kyi Su
9 Thilawar Housing
10 East Dagon
11 Yangon Industrial (Extension)

How to fulfill Load Growth ????

Thermal Power Plant Projects (MW)
No
Name
Installed
Capacity
2013 2014 2015 2016
Dry Wet Dry Wet Dry Wet Dry Wet
1 Hlawga
50
558
50
-
50
-
-
186
-
186
-
186
-
186
-
186
-
186
2 Ywama
50
120 x 2
50
-
50
240
3 Thaketa
50
500
500
50
-
-
50
-
-
-
166
-
-
166
-
-
166
166
-
166
166
-
168
166
-
168
166
4 Ahlone 120 80 80 40 40
Total 2098 230 470 392 392 518 518 590 590

Expansion Plan of Distribution System
No. Sub- Stations 2013-2014 2014-2015 2015-2016
1. 66 KV 10 7 8
2. 33 KV 8 11 7
3. 11-6.6/0.4 KV 152 152 152
No. Line 2013-2014 2014-2015 2015-2016
1. 66 kV mile(km) 47(75.2) 31(49.6) 41(65.6)
2. 33kV mile(km) 22(35.2) 31(49.6) 13(20.8)
3. 11kVmile(km) 103(164.8) 101(161.6) 100(160)
4. 0.4kVmile(km) 86(137.6) 87(139.2) 87(139.2)

After 2013-14, 230 kV & 66 kV network diagram of YESB

After 2014-15, 230 kV & 66 kV network diagram of YESB

After 2015-16, 230 kV & 66 kV network diagram of YESB

Future 230-66kV Ring Circuit for YESB Distribution System

Great Challenges for YESB

In May 2012,
- Electricity shortage creates public demonstration
- Need to pay great attention to solve
such kind of electrical shortage.

Load Shedding for Solving Power Shortage
Condition of Power Supply to Industrial Zone in 2012 and 2013

Electricity Tariff
No.
Categories
Energy Charges
(Flat Rate) (Kyats/KWh)
Govt; Dept,
Public/ Govt;
servants,
Capacity
Charges
(Kyats/HP)
Fixed
Charges
(Kyats)
1
General Purpose,
Domestics Power,
35.0 35.0 -
1 phase=1000
3 phase= 2000
2
Small Power,
Industrial
75.0 75.0 200
1 phase= 2000
3phase=5000
CT=5000
3 Street Lighting 35.0 35.0 - -
4
Temporary
Lighting
35.0 75.0 -
1phase = 1000
3phase=5000

30
YESB Losses %
25
20
24,35
22,61
21,67
20,45
19,48
17,99
15
10
5
0
2007 2008 2009 2010 2011 2012

Countermeasures on township network
(a) Frequent fault on distribution lines
(b) Insufficiency of power and control element
(c) Scheme of Operation & Maintenance
(d) To reduce distribution losses on technical & nontechnical
measures
(e) Unreliable meter reading system

Towards Privatization
• To invite Independent Power Producer (IPP) for sufficient
electricity power supply
• To start franchise township wise utility task to Private
sector .
• To replace old electromagnetic energy meter with Digital
Meter (Offsite meter reading system) .
• To replace 400 V bare conductor over head distribution line
with aerial bundle Conductor (ABC).
• To reduce long distance 400 V distribution line losses by
using Multi transformer System .
• To upgrade 6.6 kV distribution voltage to 11 kV.
• To upgrade 33 kV distribution voltage to 66 kV .

Foreign Supports & Cooperation

Foreign Supports
(1) ADB Loan (5 Townships)
66 kV and 33 kV S/S and line construction projects 35,010,684 (Kyats in Thousand)
(2) NEDA (3 Townships)
66 kV S/S and line construction projects 13,617,680 (Kyats in Thousand)
33 kV S/S construction projects 3,102,020 (Kyats in Thousand)
(3) World Bank
Distribution system improvement
17,832,800 EURO
(4) JICA (From 230kV Thanlyin S/S to SEZ)
33 kV line and Switch bay construction project 329,000,000 JPY
(5) Japan Government
Supply & delivery of generator & accessories
(6) Non Project Grant Aid, Japan Government
Diesel Oil & accessories for Diesel Engine
(7) KFW Loan/ supplement
For improvement of distribution system
(13) sets
800,000,000 JPY
17, 895,215.84 Euro

Japanese Cooperation
JICA Expert (Adviser for YESB) June 2012- June 2014
- To propose renewal and development plan
- To facilitate capacity development of engineers and technicians
- To give advice on improvement projects of Myanmar
JICA training (for distribution system)
- Country focused training
From 1st June to 15 th June in Japan
10 officials from MOEP( 4 participants from YESB )
- International Trainers training
From 15May to 22th June 2013 in Japan
1 participant from YESB
JICA Study (from 2013 July)
- Preparatory Survey on Power Sector Improvement Project in the Yangon City
- National Electricity Plan in the Republic of the Union of Myanmar
Japanese Yen Loan
- Urgent Rehabilitation and Upgrade Project
- Infrastructure Development Project in Thilawa Area

Transfer of technical know-how through direct and/or indirect co-operation in
the way of consultancy assistance:
• Capacity building of YESB employee.
• Research and development co-workmanship in Energy Planning,
environmental engineering and renewable energy
• Human Resources Development
• Control, Operation and maintenance training for distribution system
(SCADA/EMS)
• Effective on-job trainings especially for distribution system
• Capital Investment through PPP scheme
• To replace 6.6 kV, 11 kV and 33 kV Medium voltage overhead line with
spacer cable system