The Future of TCN:
Ensuring Professional Management of and
Investment in the Transmission Network.
Presented by
Engr. A.S.A. Bada
Senior Special Assistant on Transmission to the President
2
Introduction
• The decay in the power industry is immense and the resources
needed to revamp the system are immense; the FGN cannot
bear this burden alone
• Stakeholders are eager and willing to participate in any
meaningful activity that can move the electricity power sector
forward if the right investment climate is created
3
Strategies
Strategies that will ensure professional management of and investment in the transmission network fall into 3 broad categories:
– The future of Transmission Company of Nigeria (TCN)
– Ensuring professional management of TCN;
– Investment in the transmission network.
4
Structure of TCN
TSP
•
•
•
•
S.O.
• Matching supply with demand at all times (operations planning);
• Maintenance of grid security and reliability;
• Administration of, supervision of compliance with and enforcement of
provisions of the Grid Code;
M.O.
• Approving entry to and registering market participants;
• Market settlement;
• Administration of, supervision of compliance with and enforcement of
provisions of the Market Rules.
Design and Construction;
Maintenance and Field services;
Power System Planning, Research and Development;
Provision of unfettered access to market participants.
5
Structure of TCN (continued)
The TSP is
mostly concerned
with asset
management
while the S.O.
And M.O. Are
service providers.
Services
rendered by the
S.O. And M.O.
Are not for TCN
alone but rather
for all market
participants.
Operationally TCN is
structured into eight
regions responsible for
asset management
6
Structure of TCN (continued)
• The TSP is mostly concerned with asset management while
the S.O. & M.O. are service providers.
• Services rendered by the S.O. & M.O. are not for TCN alone
but rather for all market participants.
• Operationally TCN is structured into 8 regions responsible for
asset management
• Expansion and rehabilitation programs are driven from
Corporate Headquarters
7
TCN’s Goal
• To improve on the quality of power it delivers to its customers,
practice good corporate governance and ensure its services
are accessible, reliable and affordable.
• Ingredients of a viable corporate entity include the following:
–
–
–
–
Large asset base with robust asset management philosophy;
Elements of natural monopoly;
Appreciable capital base or ability to attract investment;
Good corporate governance and
– Strategic planning.
8
Professional Management of TCN
• TCN has obviously not been able to achieve any of these
• What can TCN boast of out of all these?
– Large asset base with poor management philosophy;
– Full natural monopoly
• It is important there is a paradigm shift in the present strategic
planning currently adopted
9
Professional Management of TCN (continued)
Strategies must be developed
to achieve the desired
goals/objectives:
• Improvement in financial
management;
• Ensure reliable and qualitative
energy supply;
• Explore PPP opportunities;
• Concentrate on core functions;
• Operate the Grid Code (Ring
fencing the activities of the
three component sectors of
TCN).
Core functions can be
performed better viz;
• 100% availability of
transmission lines and
transformers other than the
ones on scheduled
maintenance outages (robust
maintenance philosophy);
Factors
• N-1 contingencies (expansion
external to TCN planning to take care of
militate against redundancies);
attainment of • Availability of reactors and
set objectives.
capacitor banks (power quality
assurance);
• Functional and properly
coordinated protection relay
schemes
• Adequate automatic frequency
load shedding scheme
10
Professional Management of TCN (continued)
For TCN to be viable and attract private participation it should:
• Set achievable and measurable targets;
• Look seriously at business issues;
•
Improve overall system performance;
•
Cut back significantly on operating costs.
11
Investment Opportunities in TCN
• TCN provides the vital transmission infrastructure between
the generating stations and the distribution companies
• There are currently two levels of transmission voltages in our
grid: 330kV and 132kV.
• At the last count there are 5650 and 6687 kilometers each of
330kV and 132kV lines respectively.
• The entire infrastructure is essentially radial, without
redundancies thus creating inherent reliability issues.
1
Capacity 330/132kV (MVA)
6,894
2
Capacity 132/33kV (MVA)
8,882
3
Number of 330kV Substations
28
4
Number of 132kV Substations
119
5
Total Number of 330kV circuits
60
6
Total Number of 132kV circuits
153
7
Length of 330kV lines (kM)
5,650
8
Length of 132kV lines (kM)
6,687
9
National Control Centre
10
Supplementary National Control Centre
11
Regional Control Centres
1
1
2
Map 4: Existing NEPA
TCN Transmission Line System
REPUBLIC
OF
CHAD
SOKOTO
Sokoto
Katsina
NIGER
YOBE
Hadejia
JIGAWA
Birnin
Kebbi
BORNO
Gusau
KATSINA
Damaturu
ZAMFARA
Kano
KEBBI
KANO
REPUBLIC
OF BENIN
Dutse
KADUNA
Bauchi
SHIRORO
NIGER
Azare
BAUCHI
Kaduna
KAINJI
Maiduguri
Jos
Gombe
2 Circuits
GOMBE
2 Circuits
ADAMAWA
Minna
KWARA
JEBBA/GS
Abuja
ABUJA
JEBBA/TS
IIorin
3 Circuits
OYO
Yola
PLATEAU
NASSARAWA
Jalingo
Lafia
REPUBLIC
OF CAMEROON
TARABA
Lokoja
Osogbo
Ibadan
OSUN
Abeokuta
Ikeja
AJAOKUTA
EKITI
OGUN
ALAGBADO
Makurdi
Ado
Ekiti
LAGOS
BENUE
KOGI
Akure
EGBIN
P/ST.
MAKURDI
TRANSMISSION LINE LEGEND
ONDO
Akwa
2 Circuits
Asaba
2 Circuits
SAPELE
P/ST.
DELTA
132KV LINES - UNDER CONSTRUCTION
330KV LINES - EXISTING
Umuahia
ABIA
CROSS
RIVER
330KV LINES - AWARDED
330KV LINES - APPROVED
330KV LINES - UNDER CONSTRUCTION
Owerri
132KV
330KV
BULK SUPPLY - EXISTING
Uyo
AFAM
BAYELSA RIVERS POWER ST.
Report Maps 7-24-00
132KV LINES - APPROVED
Abakaliki
ONITSHA
AN AMBRA
2 Circuits
Port
Harcourt
132KV LINES - AWARDED
EBONYI
Enugu
IMO
DELTA
POWER ST.
132 KV LINES - EXISTING
ENUGU
EDO
Benin City
Notes:
1. Multi-circuits are not indicated for the 132KV system.
NIGERIA
AKWA Calabar
IBOM
ATLANTIC OCEAN
H
BULK SUPPLY - UNDER CONSTRUCTION
BULK SUPPLY - APPROVED / AWARDED
HYDROELECTRIC POWER SUPPLY
THERMAL POWER STATIONS
14
Challenges in the Sector
Grid Reliability
and Stability
Vegetation
Management
Human Capacity
Deficiencies
Finance
• The current radial nature of the grid is in itself a
very serious reliability concern
• Issues of proper management of vegetation
along the transmission right of way
• Recruitment exercises have been embargoed
for more than 10 years and there has not been
a coordinated approach to training in the sector
until the recent incorporation of NAPTIN.
• This has always been in short supply either
through budget appropriation or internal
generation
15
Mitigation of Challenges and Areas Identified
for Possible Private Sector Participation
•
•
•
•
Transmission Network expansion
Dualization of critical lines to create relief
Relief for congested segments of the grid
Implementation of the Super Grid concept (will cost c. $5bn;
FGN cannot achieve this alone)
• Vegetation management
• Human capacity development
• Local manufacture of components.
16
PROPOSED SUPERGRID NETWORK
REPUBLIC
OF
CHAD
2015 : new
Niamey
NIGER
SOKOTO
Sokoto
Katsina
132 kV
TRANSMISSION GRID STRUCTURE WITH THE SUPER
2015 : new
YOBE
Hadejia
JIGAWA
Birnin
Kebbi
BORNO
Gusau
KATSINA
ZAMFARA
Damaturu
GRID IN PLACE
KEBBI
Potiskum
2015 : new
Kano
Maiduguri
KANO
2010 : new
Zaria
REPUBLIC
OF BENIN
KADUNA
2015 : 2nd Circuit
2015 :
3rd Circuit
Bauchi
2
3
SHIRORO
NIGER
KAINJI
BAUCHI
Kaduna
Jos
Gombe
ADAMAWA
GOMBE
2
SAPELE
P/ST.
2
KWARA
2
Minna
2010: new
JEBBA/GS
2015 : new
4
JEBBA/TS
Abuja
OYO
NASSARAWA
3
2015 : new
EKITI
MAKURDI
Mambila
Aliade
Okitipupa
EGBIN
P/ST.
ENUGU
EDO
Benin
Ikeja
2005 : new
Mambila Hydro
2
ONDO
2
Bali
BENUE
KOGI
Akure
2
ALAGBADO
REPUBLIC
OF CAMEROON
TARABA
Makurdi
AJAOKUTA
Geregu
Abeokuta
NIGERIA
2015 : new
Ado
Ekiti
OSUN
OGUN
Lafia
Lokoja
Osogbo
2
Yola
Jalingo
ABUJA
IIorin
Ibadan
PLATEAU
2015 : new
Enugu
Akwa
TRANSMISSION LINE LEGEND
EBONYI
700KV LINES – SUPER GRID
Asaba
LAGOS
2
ONITSHA
4
Abakaliki
AN AMBRAAgip
SAPELE
P/ST.
IMO
700 / 330KV SUBSTATION
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
Thank You