Transcript Methodology of the Master Plan development

Development of Transmission
System Master Plan of Oman
(2014-2030)
Dr. Adil Ghalib Al-Busaidi, PhD, MSc, BEng, CM, MIEEE
Asset Management and Planning Manager
Oman Electricity Transmission Company
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Outline
 Introduction
 Methodology of the Master Plan development
 Preliminary studies
 Transmission Master Plan results
 Findings, recommendations & way forward
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Introduction
Why we need Master planning?
• To avoid costly reworks and upgrades
• Control time and effort
• Coordination across the sector
• Have insight into the future challenges
• Knowing the potential growth areas
• Know the future challenges and get prepared
for it (new types of equipment…)
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Introduction- continued
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How we are going
to use it?
Decide voltage
levels
Medium term plan
shall be
compatible with
the long term
needs
Securing overhead
lines routes & grid
stations locations
Coordination of
efforts with main
stakeholders
Plan for the
required
contracting
strategies,
financial resources
and human
resources
Master
Plan
2014-2030
Voltage level
Detailed Investments
decisions
Short circuit ratings
Strategic network
structure
5YCS
5 years
window
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Methodology of the Master Plan
development
• Preliminary studies
• Transmission Master Plan
 2030 Target Transmission
Structure
 List of investments
 Phasing of investments
• Cost estimation and
recommendations
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Preliminary studies-security criteria
Data gathering from stakeholders:
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Planning studies
Strategic documents for energy sector
Technical standards (generation, transmission,…)
Socio-economic data (population changes, GDP growth,…)
Definition of planning criteria & standards
based on:
o Grid Code
o Transmission Security Standards
o International standards
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Preliminary studies-load demand forecast
 Two complementary methods
used:
1) Global [National level]: based
on macroeconomic indicators
(population changes, GDP,…)
2) Area-based [Local level]:
based on forecasted
development of each area
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Preliminary studies-generation expansion plan
Capacity Adequacy Analysis:
Objective = advise additional capacity required by
2030
 Generation Scenarios:
Objective = determine adequate location for
additional capacity
Capacity Adequacy
+
Final Generation
Expansion Plan
Generation Scenarios
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Preliminary studies-generation expansion plan
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Transmission Master Plan results-2030
transmission structure
• Coastal Backbone
• Evacuation of new
coastal power
plants (Sohar,
Shinas, Suwayq,…)
• Interconnection
with UAE (GCCIA)
and possibly Iran in
future
• Inner-Land Backbone
• Evacuation of Ibri
power plant
• Southern Ring
• Evacuation of Sur
1&2 power plant
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Transmission Master Plan results-2030
transmission structure
In addition: 4th EHV route
to connect Duqm & Dhofar
systems
Potential interest for PDO
2018
development of the Inner-Land
backbone + connection SFZ–
Mhadah (UAE)
2018-2020
development of 400kV to
supply Muscat area
2021-2025
development of the Coastal
backbone
interconnection MIS-DuqmDhofar 2026-2030
closing of the Southern Ring
Duqm
Dhofar
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Transmission Master Plan results-key
changes
2014
• 400kV : not existing
• 220kV : transmission
network
• 132kV : sub-transmission
network
– Well meshed in Muscat area
2030
• 400kV : transmission network
• 220kV : sub-transmission
network
• 132kV : “distribution” network
– Split in Muscat area
• No SVCs
• SVCs in Muscat
220kV = transmission of power
132kV = supply of load
400kV = transmission of power
220&132kV = supply of load
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Transmission Master Plan results-phasing
of investments
2018
development of the Inner-Land backbone + connection SFZ–Mhadah (UAE)
2018-2020
development of 400kV to supply Muscat area
2021-2025
development of the Coastal backbone
interconnection MIS-Duqm-Dhofar 2026-2030
closing of the Southern Ring
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Findings, recommendations & way
forward
Findings:
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Development of the EHV (400kV) network to serve as the main
transmission back bone
Reinforcement of HV (220&132kV networks) to serve as subtransmission system and provide enough injection points for the
load demand
 Recommendation:
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Interconnection of Duqm and Dhofar networks with the MIS
 Way forward:
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Discussions with DISCOs on new grid stations locations
Issue tenders for routes surveys of the new lines
Coordinate with concerned authorities for securing the lands and
corridors
Long term financial planning and contracting strategies
Build technical capabilities to meet the future needs
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Q&A
????
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