oetc 2016-2020 projects

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Five-Year Annual Transmission Capability Statement (2016 - 2020)

Page | 12

Table1: Summary of Planned Developments on OETC Transmission System (2016 - 2020)

S.N Project

Expected

Completion

Date

Status Main Equipment Purpose

Peak 2016

1 Al Ayjah132/33kV grid station Q3 2015 Energized

35 km 132kV OHL from Sur grid

station

2x125MVA transformers

6 no. 132kV GIS

To cater for the new load growth at Ras Al Had area

Solve the issue of voltage drop of 33kV lines. Currently

this area is fed by 33kV feeders from Sur grid station

Load transfer from existing Sur grid

2Madinat Nizwa132/33kV grid

stationQ3 2015 Energized

2 x 125 MVA transformers

6 no. 132kV GIS

12 km 132kV double circuit OHLfrom Nizwa grid station

Load transfer from Nizwa grid station

To meet load growth requirements in the area

3Rusail Industrial132/33kV

grid stationQ3 2015 Energized

12 no. 132kV GIS

4 x 125MVA transformers

Replacement of old 132kV and 33kV switch gears due to

132kV and 33kV short circuit effects

Replacement of old 75MVA transformers with 125MVA

To cater for the new load growth at Rusail area

4 Amerat132/33kV grid station(TX1 & TX2)

Q3 2015 Energized


8 no. 132kV GIS

5km LILO of 132kV OHL between

MSQ and Jahloot

Load transfer from Jahloot and Wadi Adai grid stations

To meet the high load growth at Amrat area

To resolve 33kV voltage issues

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Table1 (Continued): Summary of Planned Developments on OETC Transmission System (2016 - 2020)

S.N Project

Expected

Completion

Date


Peak 2016

5A'salam132/33kV grid station

(TX1 & TX2)Q3 2015 Energized

2x 125MVA transformers

8.4km 132kV 2500mm2 UGC from

Mobella to A'salam

7.4km132kV 2500mm2 UGC from

Seeb Main to A'salam

10 no. 132kV GIS

To cater for the load growth at Mobella

Load transfer from grids in this area (Mawalleh , Seeb

Main , Barka Main and Mobella)

6Ghala132/33kV grid station

(TX1 & TX2)Q3 2015 Energized


12 no. 132kV GIS

4km UGC 2500mm from Airport

Heights grid station

To cater for the expected load growth in Ghala area

Load transfer from Bousher and Airport Heights grid

stations

To supply the new Al Arfan area load

7 Khadhra132/33kV grid station(TX1 & TX2)

Q4 2015 Energized


10. no. 132kV GIS

0.135 km LILO of 132kV between

MISKhabourah

To cater for the new demand within the area

Load transfer from Khaborah & MIS grid stations

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S.N Project

Expected

Completion

Date


Peak 2016

8

New 400kV OHL between Sur

Power Plantand Qalat Al

Awamer400 kV grid stations

Q4 2015 Completed

223 km 400kV lines route length

between SurQalat Al Awamer

To evacuate the power from Sur Generation

To support the voltage and power flow to Al Dakhliah

area

To comply with Transmission Security Standards

requirements

9 Madinat Barka132/33kV gridstation (TX1 & TX2)

Q4 2015 UnderConstruction


10 no. 132kV GIS

0.13 km LILO of 132kV OHL from

Filaj to Mualdah

To cater for the load growth at Barka area

To meet Transmission Security Standard

Load transfer from Barka Main

10Al Hamriyah220/132kV grid

stationQ1 2016

Energized

(Grid

Station)

Under

Construction(220kV

OHL)

2 x 500MVA transformers 220/132kV

8 no. 220kV GIS

14 no. 132kV GIS

33.8 km 220kV OHL from Jahloot to

Al Hamriyah

LILO the 132kV Wadi Adai- WadiKabir lines grids station

LILO the 132kV Qurum-Muttrah lines

to Al Hamriyah grids station

To supply the load of the area

To support the voltage at Muscat area Grids

( Wadi Adai, Wadi Kabir, Muttrah , Qurum and AlFalaj)

To evacuate the power coming from Sur via Jahloot grid

station

To increase the system reliability within Muscat area gridstations

To increase and maintain the system security of 132kV

lines within the area

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S.N Project

Expected

Completion

Date


Peak 2016

11 Ibra 132/33kV grid station Q1 2016Under

Construction

6 no. 132kV GIS

28 km OHL 132kV route length

between Mudhairib and Ibra gridstations


To meet load growth requirements


Load transfer from Mudhairib

12New 132kV Line Ashoor -

Awqad(Part-1)Q1 2016

Under

Construction

8.5 km 132kV OHL

1.2 km 132kV UGC

To complete the ring of 132kV system


13New 132kV Line Ashoor -

Awqad(Part-2)Q1 2016

Under

Construction 48.3 km 132kV OHL

To complete the ring of 132kV system


14

Sur IPP400/220kV Grid Station

& Jahloot 400/220kV Grid

Station

Q2 2016Under

Construction

At Jahloot:

4 x500MVA, 400/220kV transformers

10 no. 400kV GIS

2 no. 220kV GIS

At Sur Power Plant:

5 x 750MVA 400/220kV

transformers

13 no. 400kV

1 no. 220kV GIS


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S.N Project

Expected

Completion

Date


Peak 2016

15JBB Hassan132/33kV grid

stationQ2 2016

Under

Construction


8 no. 132kV GIS

2x16 km LILO Al kamil-Sur 132kV

OHL

6x132kV AIS at JBB Ali grid station

Load transfer from existing JBB Ali grid station

To meet load growth requirements in the area


16Qalat Al Awamer132/33kV

grid stationQ2 2016

Under

Construction


8 no. 132kV GIS

2x0.62 km LILO of Izki Mudhaibi

132kV UGC

To cater for the new demand in the area

Load Transfer from Izki grid station

17Qalat Al Awamer220kV grid

stationQ2 2016

Under

Construction

2x 500 MVA transformers(220/132kV)

7 no. 220kV GIS



area


requirements

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S.N Project

Expected

Completion

Date


Peak 2016

18Qalat Al Awamer400/220 kV

grid stationQ2 2016

Under

Construction

2x 500 MVA transformers

(400/220kV)

10 no. 400kV GIS



area


requirements

Peak 2017

19 Dreez132/33kV grid station Q4 2016Under

Construction

2 x 125 MVA

30 km 132kV OHL from Ibri

8 no. 132kV GIS

To cater for the new demand within the area

Load transfer from Ibri and Al Hayl grid stations

20Sohar Free Zone220/132/33kV

grid stationQ4 2016

Under

Construction

2x 0.17 km LILO Wadi Al JizziLiwa 132kV OHL


8 no. 220kV GIS

2x 0.48 km UGC as LILO of 220kV

OHL Sohar 2 PS -SIS 2x125MVA transformers

16 no.132kV GIS

To cope with the load growth.


To supply the free zone area industrial loads

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S.N Project

Expected

Completion

Date


Peak 2017

21Replacement of Mahadha

132kV AIS to GISQ4 2016

UnderConstruction

14 no. 132kV GIS

To replace the existing AIS to GIS due to:

Lightening

Maintenance Issus

Old Assets

System reliability

System security

22 Upgrading Misfahgrid stationto 400kV



(400/220kV)

11 no. 400kV GIS

3 no. 220kV GIS

To support the evacuation of Sur power plant

To maintain the security requirement

23Adding third & fourth

transformers 132/33kV at

Muladahgrid station

Q1 2017Under

Construction


2 no. 132kV GIS

4 no. 33kV Interlink




transformers 132/33kV at Liwa

grid station

Q1 2017Under

Construction


2 no. 132kV GIS




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S.N Project

Expected

Completion

Date


Peak 2017

25400 kV OHL between Qalat Al

Awamerand MisfahQ2 2017

Under

Construction 100 km OHL 400kV

To support the evacuation of Sur power plant


2633kV busbars Interlinking atBousher & Mawalleh South

grid stationsQ2 2017 Design

8 no. of 33kV at Bousher & MawallehSouth


27 Saadah132/33kV grid station Q2 2017Under

Construction

4x125MVA Transformers

10 no. of 132kV GIS.


13km LILO from Ashoor-

Awqad132kV UGC

To meet load growth requirements To meet Transmission Security Standard

Load Transfer from Al Qarm, Ittin and Awqad grid

stations

28Daghmar132/11kV grid

stationQ2 2017

UnderConstruction

3x 50 MVA (shifted from the

Mawalleh North grid station)

4km OHL from Quriyat grid stat ion

2 no. 132kV GIS at existing Quriyatgrid station

7 no. 132kV GIS at Daghmar

To supply the new IWP at Quriyat

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S.N Project

Expected

Completion

Date


Peak 2017

29

Connection of Salalah-2 IPP&Adding third & fourth

transformers to Salalah Free

Zonegrid station

Q2 2017Under

Construction

16 no. of 132kV GIS


To connected the new Salalah-2 IPP Power Plant



30

132kV Linking System between

Al Falaj, Muttrahand Wadi

KabirGrid stations & Adding

Fourth 125MVA transformer at

Wadi Kabirgrid station


3km 132kV 2500mm2 cables between

Muttrah-Al Falaj grid stations

One circuit Twin YEW 1.5 km OHL and 2

km UGC 132kV between Muttrah-Wadi

Kabair grid stations

10 no. 132kV GIS at Wadi Kabair grid

station

8 no. 132 GIS at Al Falaj

1 x 125MVA transformer at Wadi Kabir

To secure the loads and meet Transmission

Security Standard.

Safety clearance and environment issues


Peak 2018

31 Adding 400kV reactors Q3 2017 Design

2x35 MVAr reactors at end of 400kV line

between Sur-Jahloot


between Sur-Qalat Al Awamer


between Qalat Al Awamer-Misfah

To maintain the voltage within the range during

the winter time

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S.N Project

Expected

Completion

Date


Peak 2018

32Dil Abdusalam132/33kV grid

stationQ3 2017 Design


2x8 km LILO of Saham-

Khaborah132kV OHL

8 no. 132kV GIS


Load Transfer from Saham & Khaborah grid stations


33

Adding third & fourth


Khadhragrid station

Q3 2017 Design 2 x 125 MVA transformers



To cater for the load growth in the area

34



Madinat Barkagrid station




To cater for the load growth in the area

35Madinat Shinas132/33kV

grid stationQ3 2017 Design


24.06 km 132kV OHL from Shinas to

Madinat Shinas

2 no. 132kV GIS at Shinas

6 no. 132kV GIS at Madinat Shinas


Load Transfer from Shinas grid station


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S.N Project

Expected

Completion

Date


Peak 2018

36 Suwaiq 132/33kV grid station Q3 2017 Design


2x0.2 km LILO of MIS-Khadhra

132kV OHL

8 no. 132kV GIS



Load Transfer from MIS grid station

37 Sinaw132/33kV grid station Q3 2017 Design


2x15 km LILO of Qalat Al Awamer -

Mudhaibi 132kV OHL

8 no. 132kV GIS


Load transfer from Mudhaibi Solve the issue of voltage drop of 33kV lines


38

Upgrading of Mawalleh North

grid station from 3x50MVA

(132/11kV) to 2 x 125 MVA

(132/33kV) transformers



To support the 33kV network in the Seeb area and

enable to transfer more load from neighbouring grid

stations (Seeb & Mawalleh)

39 Jebreen132/33kV grid station Q3 2017 Design


2x0.5 km LILO of Nizwa - Ibri

132kV OHL

8 no. 132kV GIS


Load Transfer from Bahla grid station


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Page | 23


S.N Project

Expected

Completion

Date


Peak 2018

40 Ibri 400kVgrid station Q3 2017Under

Construction

3 x 500 MVA transformers (400/220kV)

19 No. 400kV GIS at Ibri IPP

10 No. 220kV GIS at Ibri IPP

2x4.3 km LILO of 220kV OHL IbriMahadha

To evacuate power coming from Ibri IPP

Power Plant and supply Ibri area

To maintain Transmission Security

Standard

41

Adding 2x125MVA


Barka-3 PSgrid station


2 no. 220kV GIS

To Supply the Barka IWP

Load Transfer from Barka Main grid station

42

Construction of a new 132 kV

OHL from Sohar Free Zoonto

Shinas

Q4 2017 Design

2 no. 132kV GIS at Shinas

2 no. 132kV GIS at Sohar Free Zone

20km 132kV OHL from Sohar Free Zone to Shinas


43

Upgrading of Adamgrid

station from 2x40MVA to



6 no. 132kV GIS

To maintain Transmission Security

Standard


44 Security of SIAgrid station Q2 2018 Design

1 no 132kV GIS

2 no. of 220kV GIS

1x500MVA transformer

3.2 km UGC of 220kV SPS 1 SIA

To meet Transmission Security Standard at

SIA during maintenance period

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S.N Project

Expected

Completion

Date


Peak 2018

45

New 132kV double circuits

lines from Rustaq-Wadi bani

Auwf-Nakhalwith a new

Wadi bani Auwf132/33 kV

grid station

Q2 2018 Design

2 no 132kV GIS at Nakhal

2 no 132kV AIS at Rustaq

88km 132kV OHL

2x125 MVA at Wadi bani Auwf

8 no. of 132kV GIS at Wadi bani Auwf

To meet Transmission Security Standard at Rustaq

during maintenance period

Load Transfer from Rustaq grid station

46

Upgrading of SeebMaingrid

station from 2 x 63 MVA to 2 x

125 MVA transformers and

installing 33kV busbars

Interlinking



To maintain Transmission Security Standard


47Uwaynat132/33kV grid



2x5 km LILO of Sohar-SIS 132kV OHL

10 no. 132kV GIS



Load Transfer from the existing Saham and Sohar grid

stations

48400kV connection line to Ibri

IPP Power PlantQ2 2018 Design

250 km 400kV OHL between Ibri to

Qalat Al Awamer

Adding 8 x 50 MVAr reactors at 400kV

line ends

To evacuate power coming from Ibri IPP Power Plant

and supply Ibri area


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Page | 25


S.N Project

Expected

Completion

Date


Peak 2018

49400kV line connection between

Sohar Free Zone &SISQ2 2018 Design

42 km 400kV OHL between Sohar Free

Zone to SIS


at SIS

9 no. 400kV GIS at SIS

3 no. 220kV GIS at SIS

Adding 2 x 50 MVAr reactor at Sohar

Free Zone

To develop 400kV network

To evacuate full power from Sohar III IPP


50400kV line connection between

Sohar Free Zone &MahadhaQ2 2018 Design

63 km 400kV OHL between Sohar Free

Zone to Mahadhah

2 no. 400kV GIS at Mahadhah

Adding 4 x 50 MVAr reactor at 400kV

line

To develop 400kV network

To evacuate full power from Sohar III IPP


51

Installing 220kV GIS and

adding fourth 125MVA

transformer at MSQgrid

station

Q2 2018Under

Construction

1 x 125MVA transformer

6 no. of 220kV GIS

8 no. of 132kV GIS


To meet load growth requirements To meet Transmission Security Standard


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S.N Project

Expected

Completion

Date


Peak 2018

52Sohar Free Zone 400kVgrid


6 km OHL from Terminal Tower to Sohar FreeZone

3.3 km 400kV cable from Sohar III IPP to

Terminal Tower

0.9 km 400kV cable from Terminal Tower toSohar Free Zone

3 x 500 MVA transformers (400/220kV) at

Sohar Free Zone

20 no. 400kV GIS at Sohar III IPP



To evacuate power coming from Sohar III IPP

Power Plant and to supply area


53Upgrading Mobellagrid station

to 220kVQ2 2018

Under

Construction


2x0.5 km LILO of Al Filaj-Airport Heights220kV OHL

8 no. 220kV GIS

2 no 132kV GIS

Supporting Mobella demand

Securing of the supply within the area

Peak 2019

54Ghala Heights132/33kV grid



14 no. of 132kV GIS

New 132kV cable of 7km from Ghala to Ghala

Heights and 7km from Ghala Heights to Bousher



Load transfer from Bousher


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S.N Project

Expected

Completion

Date


Peak 2019

55 Samad 132/33kV grid station Q2 2019 Design

2 x 63 MVA transformers (shifted from

Mudhaibi grid station)

38.5 km 132kV OHL from Mudhaibi

6 no. 132kV GIS


Load transfer from Mudhaibi grid station

56



Ghalagrid station

Q2 2019 Design


2 no. 132kV GIS



To meet load growth in the area

57

Reactive Power

Compensation Requirements

(SVC)

Q2 2019 Planning SVC at Hamriyah

SVC at Airport Heights

To maintain the voltage within the range during the

transient at the winter time

58



Ameratgrid station

Q2 2019 Design


2 no. 132kV GIS




59



Airport Heightsgrid station

Q2 2019 Design


2 no. 132kV GIS




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S.N Project

Expected

Completion

Date


Peak 2019

60



A'salamgrid station

Q2 2019 Design


2 no. 132kV GIS




61 Halban132/33kV grid station Q2 2019 Design


10 no. 132kV GIS


2x0.4 km LILO 132kV UGC Barka

MainMobella


Load transfer from Mobella & Barka Main grid

stations

62Sumail Industrial132/33kV

grid stationQ2 2019 Design


12km LILO of Rusail-Sumail 132kV

OHL

8 no. 132kV GIS


Load transfer from Sumail grid station

63 Bedyah132/33kV grid station Q2 2019 Design


0.6 km LILO of Mudhairib

Al Kamil132 kV OHL

8 no. 132kV GIS

To cater for the new demand in the area Load transfer from Mudhairib

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S.N Project

Expected

Completion

Date


Peak 2019

64



Sohar Free Zonegrid station

Q2 2019 Design


2 no. 132kV GIS




65 Qabel 400/132kV grid station Q2 2019 Design


2x0.2 km LILO of 400kV OHL Sur

Qalat Al Awamer

2x0.2 km LILO of 132kV OHLMudhairibIbra

8 no. of 400kV GIS at Qabel grid station

8 no. 132kV GIS at Qabel grid station

2 no. 132kV AIS at Mudhairib 132 kV

grid station

To increase the system reliability within Sharqia area

when Al Kamil IPP is retired

To increase and maintain the system security of 132kV

lines within the area

To evacuate power coming from Sur Power Plant

66Upgrading Bureimi Industrial

grid station to 220kVQ2 2019 Design


8 no. of 220kV GIS

2x6 km LILO of 220kV OHL Mahdhah

UAE

2 no 132kV GIS


requirements


To increase the system reliability within Al Bureimi

area

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Page | 30


S.N Project

Expected

Completion

Date


Peak 2019

67Birkat Al Mouz132/33kV grid



8 no. 132kV GIS

2x0.35 km LILO of Izki- Nizwa 132 kV OHL


Load transfer from Nizwa & Madinat Nizwa

grid stations

68Upgrading Khaborahgrid

station to 220kVQ2 2019 Design


8 no. of 220kV GIS

2x16km LILO of 220kV OHL SISMIS

2 no 132kV GIS


To increase the system reliability within AlBatinah South North

69Construction of a new 132 kV

OHL from JahloottoQuriyatQ2 2019 Planning

132 kV OHL from Jahloot to Quriyat (50km).

2 no. 132kV GIS at Quriyat

2 no. 132kV AIS at Jahloot




Bureimi Industrialgrid station

Q2 2019 Design


2 no. 132kV GIS




Load transfer from Bureimi grid station

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S.N Project

Expected

Completion

Date


Peak 2020

71 Yanqul 132/33kV grid station Q2 2020 Design


8 no. 132kV GIS

2x4 km LILO 132kV OHL Dank - Al Hayl


Load transfer from Al Hayl grid station

To maintain the 33kV OHL losses

72



Ghubrahgrid station

Q2 2020 Planning


2 no. 132kV GIS




73 Khoudh132/33kV grid station Q2 2020 Planning


10 no. 132kV GIS

LILO 132kV Mawalleh South Rusail

Industrial



Load transfer from Mawalleh South grid station

74 Khuwair132/33kV grid station Q2 2020 Planning


10 no. 132kV GIS

LILO 132kV MSQ

Ghubrah


Load transfer from MSQ grid station

oetc 2016-2020 projects

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