Status and Opportunities in Transmission Company of Nigeria

Status and Opportunities in Transmission Company of Nigeria

Status and Opportunities in Transmission
Company of Nigeria
Presentation
10th January, 2011
By
Engr. A.S.A. Bada
Senior Special Assistant to President
(Transmission)
Presidential Task force on Power
OUTLINE
Nigerian Electricity
Transmission
Today
• Overview of transmission
system
• System Operations
Challenges
• Grid stability
• Rules Implementation
• Vegetation Management
• Finance
Transmission
Tomorrow
• Transmission Strategies
• Opportunities
2
Overview of Transmission
System
Distribution System
Power Station
Substation
Transmission
Lines
Control Centre
Transmission System
3
Overview of Transmission
System
Enabling Capability
Basic
Better
Best
Meeting Optimization
and
Energy efficient
need
Meeting System
Security Need
Meeting Basic
Connectivity
Need
Desired Status
Current Status
Transmission Capability
4
Transmission System Data
MAXIMUM VOLTAGE
STATUTORY LIMITS
NOMINAL FREQUENCY
STATUTORY LIMITS
PEAK DEMAND FORECAST
GENERATION CAPABILITY
PEAK GENERATION
MAXIMUM INSTALLED CAPACITY
MAXIMUM ENERGY GENERATED
330KV
313.5KV – 346.5KV
50HZ
49.75HZ – 50.25HZ
8080MW
4004MW
3804MW
5482MW
85,457MWH
5
Transmission Data
1
2
3
4
5
6
7
8
9
10
11
Capacity 330/132kV (MVA)
Capacity 132/33kV (MVA)
Number of 330kV Substations
Number of 132kV Substations
Total Number of 330kV circuits
Total Number of 132kV circuits
Length of 330kV lines (kM)
Length of 132kV lines (kM)
National Control Centre
Supplementary National Control
Centre
Regional Control Centres
6,894
8,882
28
119
60
153
5,650
6,687
1
1
3
Existing 330KV TCN Grid
REPUBLIC
OF
CHAD
Niamey
NIGER
SOKOTO
Sokoto
Katsina
132 kV
YOBE
Hadejia
JIGAWA
Birnin
Kebbi
BORNO
Gusau
Damaturu
KATSINA
ZAMFARA
Potiskum
Kano
KEBBI
Maiduguri
KANO
REPUBLIC
OF BENIN
KADUNA
BAUCHI
Bauchi
Kaduna
2
SHIRORO
Jos
NIGER
KAINJI
Gombe
ADAMAWA
GOMBE
2
Minna
2
KWARA
2
JEBBA/GS
Yola
Abuja
JEBBA/TS
PLATEAU
Jalingo
ABUJA
IIorin
OYO
Lafia
NASSARAWA
3
NIGERIA
REPUBLIC
OF CAMEROON
TARABA
Lokoja
Osogbo
Makurdi
Ado
Ekiti
Ibadan
AJAOKUTA
MAKURDI
EKITI
OSUN
OGUN
Bali
BENUE
KOGI
Abeokuta
Mambila
Akure
Aliade
ALAGBADO
2
ONDO
ENUGU
EGBIN
P/ST.
EDO
2
Ikeja
Benin
Enugu
Akwa
EBONYI
Asaba
LAGOS
ONITSHA
4
Abakaliki
TRANSMISSION LINE LEGEND
AN AMBRA
SAPELE
P/ST.
IMO
CROSS
RIVER
Umuahia
330KV LINES – MULTIPLE CIRCUITS
330KV LINES - EXISTING
ABIA
DELTA
POWER ST.
Owerri
DELTA
2
330 KV
RIVERS
Port
Harcourt
BULK SUPPLY POINT
H
Uyo
2
Calabar
AKWA
IBOM
THERMAL POWER STATIONS
BAYELSA
AFAM
POWER ST.
HYDROELECTRIC POWER STATION
ATLANTIC OCEAN
7
Control Centre Structure
System
NCC: National Control Centre
SNCC: Supplementary National Control Centre
RCC: Regional Control Centre
NCC
Oshogbo
132 kV
SNCC
Shiroro
RCC3
330 kV
132 kV
132 kV
RCC2
BENIN
RCC1
IKEJA WEST
8
System Operations
System Operations in TCN (Transmission Company of Nigeria) is presently a ring
fenced entity in readiness for a robust and independent role in a matured electricity
market.
The responsibility of System Operations include:
• Maintenance of operational standard of security as much as possible under the
present circumstances;
• Dispatch all available generation;
•Schedule maintenance outages;
•Operations planning
• Restoration of the grid system;
•Administration of the Grid Code.
9
Challenges in the
Transmission Industry
10
Challenges
• Grid Stability
Radial
Voltage
• Rules Implementation Improve Efficiency
• Vegetation Management
• Finance
Aging Infrastructure
Losses
Frequency
Grid Code Dictates
Line Outages
Grid Expansion
11
Mitigation Strategies
Increase reliability and expansion of
Transmission network
Improve evacuation gap by at least 30%
Elimination of grid bottle necks
Increase The Transmission To
Generation Capacity gap
Implementing a 700KV super grid
Increase Reliability through Government
Investment
500
400
USD
300
200
100
0
2004 2005 2006 2007 2008 2009 2010 2011
13
Increase Reliability by Grid Expansion Drive
(Substations)
10000
9000
8000
MVA 7000
6000
5000
4000
3000
2000
1000
0
Existing
TCN +NIPP On-going
330KV
132KV
14
Increase Reliability by Grid Expansion Drive
(Lines)
8000
KM
7000
6000
5000
Existing
4000
3000
TCN +NIPP Ongoing
2000
1000
0
330KV
132KV
15
330KV GRID STRUCTURE AFTER COMPLETION OF ALL ON-GOING
PROJECTS
REPUBLIC
OF
CHAD
2015 : new
Niamey
NIGER
SOKOTO
Sokoto
Katsina
132 kV
2015 : new
YOBE
Hadejia
JIGAWA
Birnin
Kebbi
BORNO
Gusau
Damaturu
KATSINA
ZAMFARA
Potiskum
2015 : new
Kano
KEBBI
Maiduguri
KANO
2010 : new
Zaria
REPUBLIC
OF BENIN
KADUNA
2015 : 2nd Circuit
2015 :
3rd Circuit
Bauchi
2
3
SHIRORO
Jos
NIGER
KAINJI
BAUCHI
Kaduna
Gombe
ADAMAWA
GOMBE
2
SAPELE
P/ST.
2
KWARA
Minna
2010: new
JEBBA/GS
2015 : new
4
JEBBA/TS
Abuja
PLATEAU
OYO
NASSARAWA
Lafia
3
Geregu
MAKURDI
2
Mambila
Akure
Aliade
Okitipupa
ENUGU
EGBIN
P/ST.
2015 : new
EDO
Benin
Ikeja
2005 : new
Mambila Hydro
2
ONDO
2
Bali
BENUE
KOGI
Abeokuta
ALAGBADO
TARABA
2015 : new
AJAOKUTA
EKITI
OSUN
NIGERIA
Makurdi
Ado
Ekiti
2
Jalingo
2015 : new
Lokoja
Osogbo
Ibadan
Yola
ABUJA
IIorin
OGUN
REPUBLIC
OF CAMEROON
2
Enugu
Akwa
EBONYI
Asaba
LAGOS
2
ONITSHA
4
Abakaliki
AN AMBRAAgip
SAPELE
P/ST.
IMO
CROSS
RIVER
Umuahia
ABIA
DELTA
POWER ST.
Owerri
DELTA
RIVERS
Uyo
Port
Harcourt
2
2
BAYELSA
Calabar
AKWA
IBOM
AFAM
POWER ST.
Some 330kV lines especially in
Lagos and Delta areas could not
be indicated on this geographical
Map.
See attached single diagram for
Details.
2
330KV LINES – MULTIPLE CIRCUITS
330KV LINES - EXISTING
330 KV
BULK SUPPLY POINT
H
HYDROELECTRIC POWER STATION
THERMAL POWER STATIONS
2015 : new
2015 : new
NOTE:
ATLANTIC OCEAN
17
TCN NETWORK WITH SUPERGRID
REPUBLIC
OF
CHAD
2015 : new
Niamey
NIGER
SOKOTO
Sokoto
Katsina
132 kV
2015 : new
YOBE
Hadejia
JIGAWA
BORNO
TRANSMISSION GRID STRUCTURE WITH THE SUPER GRID IN PLACE
Birnin
Kebbi
Gusau
Damaturu
KATSINA
ZAMFARA
Potiskum
2015 : new
Kano
KEBBI
Maiduguri
KANO
2010 : new
Zaria
REPUBLIC
OF BENIN
KADUNA
2015 : 2nd Circuit
2015 :
3rd Circuit
Bauchi
2
3
SHIRORO
Jos
NIGER
KAINJI
BAUCHI
Kaduna
Gombe
ADAMAWA
GOMBE
2
SAPELE
P/ST.
2
KWARA
2
Minna
2010: new
JEBBA/GS
2015 : new
4
JEBBA/TS
Abuja
PLATEAU
ABUJA
IIorin
OYO
NASSARAWA
Lafia
3
Ibadan
Geregu
MAKURDI
2
Mambila
Akure
Aliade
Okitipupa
ENUGU
EGBIN
P/ST.
2015 : new
EDO
Benin
TRANSMISSION LINE LEGEND
Ikeja
2005 : new
Mambila Hydro
2
ONDO
2
Bali
BENUE
KOGI
Abeokuta
ALAGBADO
TARABA
2015 : new
AJAOKUTA
EKITI
OSUN
REPUBLIC
OF CAMEROON
Makurdi
Ado
Ekiti
2
NIGERIA
2015 : new
Lokoja
Osogbo
OGUN
Yola
Jalingo
Enugu
Akwa
EBONYI
700KV LINES – SUPER GRID
Asaba
LAGOS
2
ONITSHA
4
Abakaliki
700 / 330KV SUBSTATION
Agip
AN AMBRA
SAPELE
P/ST.
IMO
CROSS
RIVER
Umuahia
ABIA
DELTA
POWER ST.
Owerri
DELTA
RIVERS
Uyo
Port
Harcourt
2
2
BAYELSA
Calabar
AKWA
IBOM
AFAM
POWER ST.
330KV LINES – MULTIPLE CIRCUITS
330KV LINES - EXISTING
330 KV
BULK SUPPLY POINT
H
HYDROELECTRIC POWER STATION
THERMAL POWER STATIONS
2015 : new
2015 : new
NOTE:
Some 330kV lines especially in
Lagos and Delta areas could not
be indicated on this geographical
Map.
See attached single diagram for
Details.
2
ATLANTIC OCEAN
Opportunities
Line/Trace
Maintenance
Civil Works
Services
Network
Maintenance
Transmission
Industry
19
Destination of Transmission
Company of Nigeria
To cost effectively provide, operate
and maintain the transmission grid
network for evacuating and
dispatching with minimal technical
losses and delivering reliable and
quality electricity supply to its
clients
20
THANK YOU
21