RAEC_Capability_Final.pdf

7/27/2019 RAEC_Capability_Final.pdf

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September 2009

Rural Areas Electricity Company3 YEARCAPABILITY STATEMENT 2009-2011


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RAEC CAPABILITY STATEMENT 2009 Page 2

Table of Contents

Topic Page

1.0 Introduction 3

1.1Preamble.1.2Company Background.1.3Geographic Coverage Areas.

2.0 Information on current status of RAEC power Systems 6

2.1 System Overview 6

2.2 RAEC System users 122.3 Sources of electricity to RAEC Customers 172.4 Efficiency of RAEC Power systems 19

3.0 Demand On RAEC Power systems 41

3.1 Profile of Current Demand. 413.2 Forecasted Demand. 49

4.0 Constrains foreseen on RAEC systems 64

4.1 Status of power stations 644.2 Power capacities planned to be added. 664.3 Predicated power capacities at different areas of RAEC 69

5.0 Progress of current investments 72

5.1 Executed projects by the end of Dec. 2009. 725.2 Progress of on going projects. 73

6.0 Future developing Plans 78

6.1 Developing of the metering system. 786.2 Resizing of Power Plants. 786.3 Interlinking of small plants to local total systems. 796.4 Construction of Gas Power Station at Musandam area. 796.5 Implementation of Renewable energy.

7.0 List of Figures 85

8.0 List of Tables 87

9.0 List of appliances 89


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1.0 Introduction

1.1 Preamble

This document has been produced in accordance with Condition 35 of the RAEC license. The RAEC

systems are small and change relative rapidly and therefore whilst every care and diligence has been

exercised in the preparation of this document, reader are cautioned not to rely on the information

contained in this document for planning any major investment. Readers are strongly encouraged to

contact RAEC to confirm the status of any network or generation station before committing to any load or

generation project.No part of this Statement may be reproduced, stored in a retrieval system, transmitted or further

distributed in any form or means electronic, mechanical, photocopying, recording or otherwise for any

purpose other than with the written permission of RAEC.

The RAEC is requested under the terms of its License, to prepare annually, a RAEC Capability Statement

that provides, in respect of each of the three succeeding financial years:

information on the status of existing RAEC Capacity and the anticipated requirement for new

Capacity, including new Generation Capacity;

commentary indicating the views of the RAEC as to those of its RAEC Systems most suited to new

Connections and the Transmission and Distribution of further quantities of electricity;

commentary indicating the views of the RAEC as to those of its RAEC Systems most suited to

connecting to the Total System;

information on any constraints foreseen on RAEC Systems;

information relating to progress made with current investments;

such further information as shall be reasonably necessary to enable any Person to identify andevaluate opportunities available for Connecting to a RAEC System; and

such other matters as shall be specified in directions issued by The Authority from time to time for

these purposes.


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1.2 Company Background

The Rural Areas Electricity Company SAOC (RAECor the Company) was created in 2005 as part of

the Transfer Scheme implementation process of the new electricity market structure. Article (84) of the

Law for the Regulation and Privatization of the Electricity and Related Water Sector (Royal Decree No.

78/2004) specifies the functions and powers of RAEC, whilst Article (86) specifies its duties. The

Company License was granted by the Authority for Electricity Regulation, Oman (AER) on May 1, 2005

and it contains 57 Conditions and subsequent modifications that together enable the Company to

undertake its Licensed Activities. The Company is owned 99.99% by the Electricity Holding Company

(EHC) and 0.01% by the Ministry of Finance (MOF). EHC in turn is owned 100% by MOF.

RAEC is fully integrated utility with power generation, distribution and supply systems in the Sultanate of

Oman. At present, power is transmitted and distributed through low voltage, 11 kV and 33 kV lines.

RAECO has agreement with the Petroleum Developing Oman (PDO) to supply customers at areas of

license where it is difficult to connect them systems with its own generation.

1.3 Geographic Coverage Areas.

The Company is licensed to carry out generation and desalination activities within its geographic area of

responsibility. The key systems within Oman under the ownership of RAEC are scattered in 62 locationsat regions Musandam, Masirah, Al Wusta, Dhofar, Al Sharqiah (Fig 1.1) with other 21 interconnections

with PDO. Most of power generation sites are owned and operated by RAEC. The generation assets are

comprised of 62 locations, 6 of them includes desalination plants. As per the plans to decrease the cost of

generation where it is applicable RAEC has been closing many generation sites and shifting customers

supplying to the Main Interconnection System (MIS), PDO, Dhofar Power Company (DPC) to make

Transmission system operation (TSO) or interlinking the sites near each other to a total system to make

Distribution system operation (DSO) . In the end of 2009 the total number of producing power sites is 47

with a total available electricity generation capacity stood at about 200.252 MW. This includes the 71.2

MW capacity at Raysut A & B. Many of RAEC`s sites are cogeneration that are producing water in

addition to electricity, these are located in Musandam, Masirah, Al Wusta, Dhofar and Sharqiya with a

total installed capacity just under 2,500 m3 per day. Individual units vary in size from 50 m3 per day in Al

Wusta to 600 m3 per day in Sharquiah. The individual diesel units vary in capacity from less than 100 kW

at Hajar Bani Hameed to 7.5 MW at Raysut B in Salalah. There are two diesel power plants (Raysut A &

B) located in Salalah City owned and operated by RAEC. These are used each summer period to cover


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current shortages of the Dhofar Power Company (DPC) grid in meeting customer peak demands. The

operating parameters for these power plants are stipulated in the Power Purchase Agreement (PPA)

that RAEC has with Oman PWP.

Fig1.1: Geographic Coverage Area of RAEC Power &desalination Systems.


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2.0 Information on Current Status Of RAEC Power Systems

2.1 System Overview

RAEC`s power system consists of three phase 0.433, 11 and 33 kV systems. Electricity catered to

customers is either generated in power stations owned and operated by RAEC or purchased from PDO in

agreement to supply customers at areas of license where it is difficult to connect them to one of RAEC`s

systems RAEC manages 33 kV lines, 11kV lines and 0.415 kV lines including poles, pylons, conductors

and related equipment. This is in addition to assets such as substations, including buildings,

transformers, bus bars, circuit breakers, control systems, protection systems and metering systems.In addition to the above, the Company has 21 interconnections with PDO, DPC and other electricity

distribution companies within the EHC. There are also plans to have an interconnection with United Arab

Emirates at Musandam. At present, RAEC does not have lines greater than 33 kV under its management.

2.1.1 Technical, design and operational criteria

RAEC system and any RAEC system users connections to the distribution system shall be designed to be

consistent with the security requirements of the distribution and supply license. Licensed distributors shall

ensure that the distribution system complies with the following technical, design and operational criteriain relation to the part of the distribution system at the connection site with a distribution system user.

2.1.2 Voltage regulation

The voltage on the 33kV and 11kV sides of distribution transformers at Connection points with the

distribution system users shall normally be controlled within the limits +/-6.0% of the nominal value.

During some system disturbances such as where short circuits occur, the voltage may collapse transiently

to zero at the point of fault until the fault is cleared. Under fault and circuit

Switching conditions, the 50 Hz Frequency component of voltage may fall or rise transiently. Thefall or rise in voltage will be affected by the method of Earthing of the neutral point of the

distribution System and this variation in voltage shall be taken into account in selecting apparatus and

Plant from an appropriate specification for installation on or Connection to the System. The voltage at the

Consumers terminals shall not vary from the System nominal voltage

by more than HV 33/11 kV +6.0% to6.0%,


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LV415/240 V +6.0% to6.0%

2.1.3 Frequency deviations

The Frequency of the RAEC Systems shall be nominally 50.00 Hz with System Frequency set points

between 49.95Hz and 50.05Hz. Normal control deviations will not exceed 49.90Hz to 50.10Hz. Under

transient disturbed conditions, System Frequency could rise to 51.50Hz or fall to 48.00Hz.

2.1.4 Voltage waveform quality

All apparatus and Plant Connected to the Distribution System, and that part of the

Distribution System at each Connection Point, should be capable of withstanding the following

distortions of the voltage waveform in respect of harmonic content and phase unbalance.

The maximum total levels of harmonic distortion on the Distribution System at 33 and 11kV, from all

sources under both normal, planned outage and fault outage conditions, shall not

exceed a total harmonic distortion of 2.0% with no individual harmonic greater than 1.5% unless

abnormal conditions prevail. At LV, the maximum total levels of harmonic distortion from all

sources shall not exceed a total harmonic distortion of 2.5%.The maximum negative phase sequence

component of the phase voltage on the Distribution

System should remain below 1.0% unless abnormal conditions prevail. A maximum value of 2.0%ispermitted for phase unbalance.

2.1.5 Voltage fluctuations

Voltage fluctuations, arising from fluctuating Demands Connected at a Connection Point to

the Distribution System, shall not exceed 1.0% of the voltage level for step changes that may occur

repetitively. Any large voltage excursions, other than step changes, may be allowed up to a level of 3.0%

provided that this does not constitute a risk to the Distribution System or to any Distribution System User.

2.1.6 Distribution Networks

The network topologies associated with RAEC power systems range from compact 11, 33 kV ring

systems supplying small towns like Khasab, Dibba, Masirah, new town at Al Duqm through to wide area

radial systems interconnecting diesel generator power stations like, Al Jazir area , Saih Al Khairat, Shaab

Esaab, Mudhi, Ras Madrakah, Abu Mudhabi, etc. These areas involve nodes connected as a string with


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many kilometers 11 or 33 kV circuits. With compact systems (in towns) resupply arrangements (creating

a ring) is provided for securing power , whereas with most RAEC systems radial system is used because

the cost of resupply arrangements will be prohibitive due to the long distances involved. Table 2.1 bellow

shows the main equipment and materials used in design and construction of RAEC power distribution

networks. All equipment and materials should be specified according to OES as minimum.

Table 2.1: Standard Equipment and materials used in RAEC Power Distribution Systems

Equipment Size/Rating

11 /33 kV Step Down Transformer rating G/M 1,3, 6,10 &20 MVA

11 kV switchgear rating 1250A (Incomer & Bus section) 400 / 630A (Feeder)

11 kV RMU. 400/200 A.

33 kV switchgear rating 1250 A & 630A

33/0.433 kV Transformers P/M 200, 315 kVA

11/0.433 kV Transformers P/M 100, 200, 315 kVA

11/0.433 kV Transformers G/M 500, 1000 kVA

11kV Overhead lines Wolf (150mm2 ACSR)

AAAC 95

AAAC 195

Dog (100mm2 ACSR)

LV Overhead lines 200 mm2 AL conductor XLPE Insulated

120 mm2 AL conductor XLPE Insulated

33kV Overhead lines Panther (200mm2 ACSR)

Wolf (150mm2 ACSR)

AAAC 24033 kV Under Ground Cables 3C 300 mm2 CU XLPE

11 kV Under Ground Cables 3C 240, 185, 120, 70, 50 mm2 & 1C x 500 mm2 CU

XLPE

LV Under Ground Cables 4CX 240,185,120,70,50,35 &1CX630 CU XLPE


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2.1.7 Power generation systems:

At present RAEC owned 62 power sites of different capacities scattered in Musandam, Wusta, Dhofar

and Al Sharqiyah regions (table 2.3). The majority of the sites contain power generation sets (DG sets)

with distribution networks and are operated by the RAEC through operation and maintenance (O&M)

contractors. Other sites are being closed and the equipment of useful remaining operating life from the

closed stations are being relocated to power systems which are being implemented or resized by RAEC at

different locations in its area of license.

The number of power stations currently being operated by RAEC is 47 at different areas in Oman. Thepower stations are equipped by standard equipment and machines as per table 2.2.

The power stations sizes and efficiencies are being analyzed to establish a plan for improving power

system performance at different areas in RAEC licensed area.

Table 2.2: Standard Equipment used in RAEC Power Generation Stations.

Equipment Size/Rating

Diesel Generator Sets Different Ratings from 32 KW up to 7800 KW at different out put

voltages. 0.433, 3.3 &11 KV. Operating speed ranging from 600 RPM

up to 1500 RPM. Output power Frequency is 50 Hz.

0.433 KV switchgear Rating Up to 3500 A

0.433 /11 KV Step Up Transformer

rating

600-1600 KVA

3.3 /11 KV Step Up Transformer rating Up to 4400 KVA

11 /33 KV Step Down Transformer

rating G/M

1,3, 6,10 &20 MVA

11 kV switchgear rating 1250A (Incomer & Bus section)

400 / 630A (Feeder)

11 KV RMU. 400/200 A.

33 kV switchgear rating 1250 A & 630A


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Table 2.3 bellow shows the power generation sites that being owned and operated by RAEC, many of

these sites are closed at present and assets being shifted to other sites or sold. Customers are being

shifted to TSO or DSO.

No. R.S.No. R.S.Name Region TypeYear ofstarting

operation

No. ofDG units

installedcapacity(MW)

Availablecapacity (MW)

1 03/006 Kumzar Musandam Cogen. 1984 2 0.936 0.8

2 03/001 Al Rawda Musandam Electricity 1996 3 0.275 0.22

3 03/002 Dibba Musandam Electricity 1978 8 17.43 13.944

4 03/004 HB Hameed Musandam Electricity 1994 2 0.1 0.124

5 03/005 Khasab Musandam Electricity 1982 10 41 32.908

6 03/007 Madha Musandam Electricity 1982 8 7.516 6.01

7 02/001 AbuMudhabi Wusta Cogen. 1985 6 0.608 0.535

8 02/027 Sawgrah Wusta Cogen. 1998 4 0.874 0.467

9 02/004 Al Kahal Wusta Electricity 1999 4 2.378 4.288

10 02/005 Al Khaluf Wusta Electricity 2007 2 2 1.6

11 02/006 Al Khuiaima Wusta Electricity 2004 4 1.168 0.96

12 02/007 Al Lakbi Wusta Electricity 1998 5 1.772 1.419

13 02/008 Alajaiz Wusta Electricity 2006 4 1.13 0.904

14 02/010 AlNajdah Wusta Electricity 2007 3 2.2 1.76

15 02/012 AlZhaiah Wusta Electricity 2003 2 0.4 0.32

16 02/016 Hij Wusta Electricity 1999 7 10.5 8.48


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17 02/017 Hitam Wusta Electricity 2007 5 1.33 1.064

18 02/025 Ras Madraka Wusta Electricity 1999 5 1.071 0.863

19 02/030 Surab Wusta Electricity 2006 3 2.2 1.8

20 02/031 Al Duqm Wusta Electricity 1999 5 1.331 1.06+mobile dg

21 02/032 Al Dhafrat Wusta Electricity 2008 4 1.86 1.48

22 02/020 Masrooq Wusta Electricity 1994 6 0.712 0.523

23 02/019 Masirah Sharqiyah Cogen. 1976 10 10.597 8.478

24 BB Hassan Sharqiyah Electricity 1980 Closed Closed

25 Al Kamil Sharqiyah Electricity 1980 Closed Closed

26 Mudhairib Sharqiyah Electricity 1980 Closed Closed

27 Al Mudaibi Sharqiyah Electricity 1980 Closed Closed

28 Sur Sharqiyah Cogen. 1978 Closed Closed

9 01/001 Al Halaniyat Dhofar Cogen. 1985 4 0.544 1.28

30 01/002 Al Mathfa Dhofar Electricity 2002 3 0.46 0.338

31 01/005 Ayboot (1) Dhofar Electricity 2002 3 0.46 0.396

32 01/006 Ayboot (2) Dhofar Electricity 2006 3 0.7 0.46

33 01/007 Ayun Dhofar Electricity 2000 3 0.69 0.596

34 01/008 Barbazum Dhofar Electricity 2000 3 0.88 0.79

3501/009

Bithina Dhofar Electricity ---Under

Construction

36 01/010 Dalkut A Dhofar Electricity 1992 4 1.48 1.184

37 01/011 Dalkut B Dhofar Electricity 1997 5 3.128 2.502

38 01/012 Dhahabun Dhofar Electricity 2000 3 0.879 0.783

39 01/014 Fatkhat Dhofar Electricity 2002 3 0.416 0.368


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40 01/015 Hasik Dhofar Electricity 1992 3 1.196 0.957

41 01/016 Hirweeb Dhofar Electricity 2001 3 0.775 0.70

42 01/017 Horaat Dhofar Electricity 2002 3 0.49 0.39

43 01/019 Mahwice Dhofar Electricity 2002 3 0.362 0.318

44 01/020 Maqshan Dhofar Electricity 2001 4 1.29 1.112

45 01/021 Mazyunah Dhofar Electricity 1995 5 2.408 1.926

46 01/023 Mitan Dhofar Electricity 2001 3 0.885 0.79

47 01/024 Mothorah Dhofar Electricity 2006 2 0.44 0.38

48 01/025 Mudhai Dhofar Electricity 1992 4 1.084 1.00

49 01/026 Rabkut Dhofar Electricity 2000 3 0.75 0.64

50 01/030 Sadah Dhofar Electricity 1978 Closed Closed

51 01/031 Sadhoon Dhofar Electricity Closed Closed

52 01/032 Saih Alkirat Dhofar Electricity 2006 8 8 16.435

53 01/033 Salalah 1 Dhofar Electricity 1974 Closed Closed

54 01/034 Salalah 2 Dhofar Electricity Closed Closed

55 Raysut A Dhofar Electricity 1983 36 28.8

56 Raysut B Dhofar Electricity 1973 53 42.4

5701/035 Shahb

AsaybDhofar Electricity 1999 4 3.5 2.8

58 01/037 Sharbatat Dhofar Electricity 1999 5 2.722 2.18

59 01/038 Shasir Dhofar Electricity Closed Closed

60 01/039 Thumryt Dhofar Electricity 1993 Closed Closed

61 01/040 Tushnat Dhofar Electricity 2001 3 0.85 0.72

6201/004

Andat Dhofar Electricity --------UnderConstruction

Total RAEC 232.777 200.252


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Table 2.3: Power generation sites owned and operated by RAEC and their availablecapacities in 2009.

2.2 RAEC System UsersThe total Number of customers connected to RAEC systems in the end of 2008 was 18, 851, and 86.4%

of them are powered from power generation stations owned and operated by RAEC. The remaining

13.6% are at areas difficult to be connected to RAEC systems and they are near PDO power plants,

therefore RAEC has PPA with PDO to feed customers at the area of its license. Table 2.4 and Figures 2.1,

2.2&2.3 detail the percentage of number of customers, Load and Energy Demand of customers fed from

RAEC power generation stations and PDO.

In case of power interruption RAEC temporally caters power to customers from mobile DG sets.

Table 1.1 Details the total number of RAEC customers with the maximum Load and the total energy

consumed in 2008 and the total energy consumed.

86.4%

13.6%

No. of Customers Catered from RAEC system

No. of Customers catered from PDO power generation system

Source ofpower

No. ofCustomers

Max. Load(MW) 2008

EnergyDemand(MWH) 2008

RAEC 16,280 81272,936

PDO 2,571 14 38,606

Table 2.4 RAEC customers

Fig 2.1 Percentage ofCustomers Powered frRAEC and PDO powerstations in the end of

2008 .


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15%

11%

89%

MWH Demand from PDO

power generation

system

MWH Demand catered

from RAEC power

system

Total 18,851 95 311,542

Fig 2.3 Percentagtotal 2008 Energysupplied from RA

and PDO power


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2.2.1 Type of RAEC systems Users.

The RAEC is supplying power to customers at rural areas; therefore the main loads are domestic,

governmental commercial and farms. Industrial loads are very small. Figures2.4, 2.5, 2.6&2.7 and

Tables2.5, &2.6 show the classification of customers with their maximum load and total demand in 2008

at RAEC regions.

Type of CustomerNo.

2008

Percentage %Demand MWH

2008

Percentage

%Domestic 13,603 72.2 165,400 53.1

Governmental 2,021 10.7 76,066 24.4

Commercial 2,989 15.8 37,072 11.9

MOD 39 0.2 9,002 2.9

Agr. &Fisheries 168 0.9 10,053 3.2

Hotels &Tourism 20 0.1 10,643 3.4


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2.2.2 Regional number and maximum Load of RAEC systems Users:

25%

12%

De

A

Industrial 11 0.1 3,306 1.1

RAEC Total 18,851 100 311,542 100

Table 2.5:Numberand type ofcustomersconnectedto RAECsystems in2008


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17%

50%

33%No. of Customers at

Dhofar

No. of Customers at

Musandam

No .of Customers at

Wusta& Sharqiyah

RAEC AreasNo. ofCust.

Maximum Load(MW) IncludingPDO Supply

Maximum Load (MW)excluding PDO supply

Wusta 6262 30 18.45

Musandam 9369 45.6 45.6

Dhofar 3221 19.4 16.88

Fig 2.5 Percentageof Customers atRAEC areas

Table 2.6 :Numbers ofCustomers andMax. Load in 2008at RAEC areas


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48%

32%

20%

Musandam Max. Demand (MW)

Wusta Max. Demand(MW)

Dhofar Max. Demand (MW)

56%

23%

21%

Musandam Max Load MWWusta &Sharqiyah Max Load MW

Dhofar Max Load MW

Fig 2.7 Percentage ofLoad excludingsupplied from PDO

Fig 2.6 Percentage ofLoad includingsupplied from PDO


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2.3 Sources of Electricity Supply to RAEC customers

2.3.1 Regional Available Power Generation Capacity of RAEC power Systems:

Figure2.8 and Table2.7 show the total existing power generation capacity of RAEC system, and figure2.9

& table 2.8 Detail the regional power generation capacities of RAEC systems.

63%

37%

RAECPower

Capacity

for RAEC

CustomersRAEC

Power

Capacity

for PPA

with PWP

48%

29%

23%

Musandam

Available

capacity MW

Wusta &Al

Sharqiyah

available

capacity MWDhofar

available

capacity MW

RAEC Power Generation

CapacityMW

Connected to

Customers under RAEC

License

119.34

PPA with PWP 71.2

Total 190.5

RAEC AreasMaximumLoad from

RAEC system

(MW) 2008

AvailableCapacity

(MW)

Musandam 45.6 58

Wusta 18.45 35

Dhofar 16.88 27.5

Fig 2.8 Percentage of RAEC available capacity

Table 2.7 Available power

generation capacity of RAEC

power stations including Raysut

A&B power houses

Fig 2.9 Regional Percentage of RAEC available power generationcapacity excluding Raysut A&B.

Table 2.8 Regional available power

generation capacity of RAEC powerstations excluding Raysut A&B power

Stations


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2.3.2 RAEC Power Systems Interconnected to PDO.

RAECO has agreement with the Petroleum Developing Oman (PDO) to supply customers at areas of

license where it is difficult to connect them systems with its own generation as per table 2.9.

Table 2.9 RAEC interconnections with PDO

ID Region RSName RSNumber TypeMax.

Load

(MW)

1 9221 Al Wusta Ghobra 02/034 Interconnection 0.419

2 9234 Al Wusta Nahadah/Jabel ras 02/035 Interconnection 1.066

3 9245 Al Wusta Wadi Buthaila 02/036 Interconnection 0.123

4 9044 Al Wusta Natih 02/022 Interconnection N/A

5 9001 Al Wusta Alnuhaidah 02/011 Interconnection N/A

6 9012 Al Wusta Bahja 02/013 Interconnection N/A

7 9026 Al Wusta Namur 02/021 Interconnection N/A

8 9055 Al Wusta Qarn Alalam 02/024 Interconnection N/A

9 9063 Al Wusta Rima 02/026 Interconnection N/A

10 9080 Dhofar Al Shuwaimia 01/003 Interconnection N/A

11 9087Dhofar Amal (Shuwaimia &

Shaleem)01/045 Interconnection 2.133

12 9102 Dhofar Dimeet 01/013 Interconnection 0.252

13 9113 Dhofar Kabut 01/018 Interconnection 0.169

14 9131 Dhofar Shaleem 01/036 Interconnection N/A

15 9137 Dhofar Wadi Arah 01/041 Interconnection 0.190

16 9155 Dhofar Wadi Haka 01/042 Interconnection N/A

17 9166 Dhofar Wadi Rahab 01/043 Interconnection N/A

18 9176 Dhofar Zakhar 01/044 Interconnection N/A

19 9185 Musandam Sheesa 03/009 Interconnection N/A

20 9198 Al Wusta Haima 02/032 Interconnection 7.362

21 9209 Al Wusta Wadi Aswad 02/033 Interconnection 1.979

Total Maximum Interconnected Load (MW) 13.693


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2.4 Efficiency of RAEC Power Systems

2.4.1 Power Loss.

The Total Energy metered at customer metering equipment is different from the total energy sent from

the power generation stations; this is due to power losses (technical and un technical). Figure 2.10 and

Table 2.10 show the calculated loss at RAEC individual areas and the loss calculated for combined RAEC

systems.

0

5

10

15

20

25

RAEC

Wustaa

Dhofar

Musanda

m

Power Loss at RAEC Power Systems

AreaPower Units Sent

(kWh)Power Units

Metered (kWh)Losses %

Musandam

191,536,982 162,313,183 15.26

Dhofar 77,683,928 61,923,802 20.29

Wusta & shar 101,053,959 87,304,885 13.61

RAEC 370,274,869 311,541,870 15.86

Figure2.10:Regional& RAECpowerLoss

Table 2.10Summeryof RAEC

regionalPowerLoss


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Table 2.11 below details the losses of RAEC power systems calculated by the comparison of energy sent

from power stations and that metered by customers energy meters through billing system. From the

analysis it is shown that losses are very high in many systems while are very low in others, many power

systems show that power metered for billing is more than that Sent from the power house, this is

because of many factors such as, inaccurate metered data, power supplied without metering, rented

power which is not added to power sent, etc. Power losses in the remaining power systems can`t be

calculated since the billing system covers metering in area bases not on system where many areas are

being powered from more than power station.

S.No.

AREACODE &NAME

Consumed(Units)Gover.

Consumed(Units)

(Private)

Total(Units)

Total UnitsSent kWh

TotalLoss %

1 8 KHASAB - E 20,689,175 59,289,219 79,978,394 128,116,585 17.7

2 9 DIBBA - E 9,267,347 35,813,202 45,080,549 49,311,010 8.6

3 83 BUKHA - E/W 6,774,028 10,857,897 17,631,925 Khasab

4 84 ROWDHA 841,376 170,773 1,012,149 345,229 Khasab

5 85 MADHA - E/W 2,309,941 9,525,939 11,835,880 14,552,305 18.7

6 86 QUIDA - E/W 1,219,971 2,634,277 3,854,248 Khasab

7 87 KHUMZAR - 716,672 2,189,021 2,905,693 Khasab

8 88 SHISHA - E/W 112,480 238,596 351,076 Khasab

9 89 AL NUZAIF - E 50,347 621,186 671,533

10 92 MAHOOT 4,009,745 9,467,080 13,476,825 14,955,468 9.9

11 93 DAKHOOM 3,301,265 4,096,273 7,397,538 5,897,942 -25.4

12 94 JAZIR - E / W 2,186,029 5,295,321 7,481,350 9,289,556 19.5

13 96 MASIRAH - E 2,899,250 21,334,404 24,233,654 25,749,655 5.9

14 98 KHOAIMA -E 608,203 1,343,820 1,952,023 3,634,419 46.3

15 100 MASROOQ 7,741 237,109 244,850 479,224 48.9

16 102 ZAHIYAH 183,471 350,949 534,420 756,096 29.3


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Table 2.11 Calculated losses at many of RAEC`s power systems.

17 40 AIBOOT-2 125,618 264,677 390,295 734,056 46.8

18 42 FATKHEET 95,744 194,492 290,236 339,068 14.4

19 43 MAHVEES 63,441 196,897 260,338 304,663 14.5

20 44 HEBROT-ABT1 118,990 206,992 325,982 783,132 58.4

21 45 MUTHAFAH 45,108 69,069 114,177 124,807 8.5

22 46 HAROOT 84,759 295,743 380,502 422,105 9.9

23 47 MAQSHAN 760,327 436,412 1,196,739 1,369,810 12.6

24 48 HERWAIB 453,066 660,001 1,113,067 1,057,760 -5.2

25 49 METAN 403,163 954,576 1,357,739 1,915,654 29.1

26 51 TOSENAT 393,776 51,222 444,998 802,758 44.6

27 54 BARBAZOOM 136,804 588,419 725,223 1,055,300 31.3

28 55 AAYOON 46,393 252,879 299,272 285,763 -4.7

29 56 DHABOON 193,499 1,075,080 1,268,579 1,354,411 6.3

30 57 RABKOOT 155,016 482,921 637,937 726,764 12.2

31 58 SHAHBASAHEB 2,106,423 2,343,680 4,450,103 8,581,440 48.1

32 59 AL HALANIAT 159,895 127,384 287,279 929,090 69.1

33 61 AL SHASAR 3,696,369 12,984,070 16,680,439 23,354,025 28.6

34 62 AL MAZEUNA 1,996,738 3,497,710 5,494,448 7,302,521 24.8

35 70 SHARBATAT 792,504 2,003,987 2,796,491 2,867,290 2.5

36 72 MUDHAI 537,677 1,255,593 1,793,270 1,689,125 -6.2

37 80 HASIK 793,913 2,483,576 3,277,489 3,418,198 4.1

38 97 DHALKOOT 3,395,389 3,239,351 6,634,740 7,783,510 14.8

39 98 RAYKHUIT 1,699,732 1,424,243 3,123,975 726,764


24/89


2.4.2 Efficiency of Power Stations

Combinations of DG with different generation capacities are used in RAEC Power stations. The DG sets

are connected in parallel to get the required power capacity of the power station. Synchronizing of the

DG sets is being done automatically and/or manually. Power evacuated is connected to common

switchgears and supplied to customers by .0.433, 11 or 33 kV lines. The main factors considered in

selecting the type and size of the DG sets are the base load, the maximum and minimum demand and

power security standard of the demand predicated in the considered area.

The output energy per litre is used to calculate the outage of each power station. The efficiency of each

power station is calculated with reference to (10.8 kWh/litre) which is an international reference value.

Fig 2.11 and table 2.12 detail the generated energy per litter and efficiency of existing RAEC power

stations.

0

5

10

15

20

25

30

35

40

0 10 20 30 40 50 60

Ece%

Power Station Number

RAEC Power Stations Efficiency

RAEC

Power

Stations

Efficiency

RAEC

average

efficiency,

31%

Fig 2.11 Efficiency of Power Stations


25/89


No.

Powe

r

Station

Fuel

Consump

(2008)

Litter

Gene

rate

dEne

rgy

(2008)

kWh

kWh/L.

PSE

ff.%

No.

Powe

r

Station

Fuel

Consump

(2008)

Litter

Gene

rate

dEne

rgy

(2008)

kWh

kWh/L

PSEff.%

1 Khasab 36,425,952 135,574,000 3.72 34.5 26 Ayoon 120,000 296,352 2.47 22.9

2 Dibbah 14,822,185 53,052,960 3.58 33.1 27 Rabkut 250,000 738,215 2.95 27.3

3 Madah 4,220,652 15,150,830 3.59 33.2 28Sha.Assaib

2,684,900 8,659,307 3.23 29.9

4 HBH 111,000 207,544 1.87 17.3 29Mazyonah

2,300,800 7,329,410 3.19 29.5

5 Rawda 207,000 383,232 1.85 17.1 30 Makshan 448,000 1,410,950 3.15 29.2

6 Masrooq 227,500 515,749 2.27 21 31 Mittan 720,000 1,922,010 2.67 24.7

7 Al Lakbi 2,057,070 5,808,441 2.82 26.1 32 Tushnat 340,000 815,885 2.40 22.2

8 RasMadraka

1,312,130 3,431,960 2.62 24.2 33 Harweeb 460,000 1,068,545 2.32 21.5

9 Al Duqm 2,102,390 5,901,953 2.81 26 34 Mahwise 140,000 315,938 2.26 20.9

10 Al Kahal 1,255,690 3,517,127 2.80 25.9 35 Howrat 220,000 437,936 1.99 18.4

11 Hij 5,197,970 15,007,120 2.89 26.7 36 Matafa 70,000 128,855 1.84 17

12 Al Zahia 289,990 791,185 2.73 25.3 37 Fatkeet 140,000 349,825 2.50 23.1

13 Khuiaima 1,237,650 3,728,791 3.01 27.9 38 Ayboot1 190,000 371,933 1.96 18.1

14 Hitam 542,160 873,801 1.61 14.9 39 Ayboot2 200,000 393,580 1.97 18.2

15 Khaloof 509,640 1,020,827 2.00 18.5 40 Saih kirat 6,006,000 23,457,500 3.91 36.2

16 Sarab 400,420 1,072,270 2.68 24.8 41 Mothorah 200,000 447,011 2.24 20.7

17 AlNajda 254,780 460,735 1.81 16.7 42 Masirah 9,145,500 32,572,840 3.56 33

18 Alajaiz 646,090 1,258,283 1.95 18 43 Kumzar 313,084 850,590 2.72 25.2

19 Dhalqut A 720,000 2,322,657 3.23 29.9 44AbuMudabi

191,150 490,817 2.5723.8*

*

20 DhalqutB 1,795,000 5,466,718 3.05 28.2 45 Sograh 14,000 8,860 0.63 5.9**

21 Hassik 1,065,000 3,372,307 3.17 29.3 46Hallaniyat

400,000 1,303,290 3.26 30.2

22 Sharbatat 978,000 2,856,598 2.92 27 47 Raysut A 1,190,800 0

23 Mudhai 820,000 1,694,665 2.07 19.1 48 Raysut B 300,000 0

24 Barbazom 388,000 1,073,135 2.77 25.6

25 Dhaboon 460,000 1,352,260 2.94 27.2 RAEC104,090,503

349,264,797 3.36 31.1

** Power Stations are closed

Table 2.12: Summary of RAEC Power Stations Efficiencies


26/89


2.4.3 Cost of Generating Power Unit

0

50

100

150

200

250

300

350

400

0 10 20 30 40 50

PerCostBz/Kwh

Power Station Number

R.S.No. No. P Station Name

per unit Gen.

cost BZ/kWh

03/001 1 Al Rawda 107

03/002 2 Dibba 43

03/004 3 HB Hameed 191

03/005 4 Khasab 41

03/007 5 Madha 47

02/019 6 Masirah 57

02/001 7 AbuMudhabi 101

02/004 8 Al Kahal 67

02/005 9 Al Khaluf 103

02/006 10 Al Khuiaima 62

02/007 11 Al Lakbi 63

02/008 12 Alajaiz 107

02/010 13 AlNajdah 120

02/012 14 AlZhaiah 126

02/016 15 Hiij 55

02/017 16 Hitam 131

02/025 17 Ras Madraka 70

02/030 18 Surab 82

02/031 19 Al Duqm 59

02/020 20 Masrooq 152

01/001 21 Al Halaniyat 88

01/002 22 Al Mathfa 377

01/005 23 Ayboot (1) 185

01/006 24 Ayboot (2) 177

01/007 25 Ayun 196

01/008 26 Barbazum 93

01/010 27 Dalkut A 64

01/011 28 Dalkut B 60

01/012 29 Dhahabun 81

01/014 30 Fatkhat 171

01/015 31 Hasik 65

01/016 32 Hirweeb 138

01/017 33 Horaat 164

01/019 34 Mahwice 196

01/020 35 Maqshan 131

01/021 36 Mazyunah 61

01/023 37 Mitan 90

01/024 38 Mothorah 242

01/025 39 Mudhai 10701/026 40 Rabkut 107

01/032 41 Saih Alkirat 44

01/035 42 Shahb Asayb 57

01/037 43 Sharbatat 75

01/040 44 Tushnat 132

Total RAEC 52

Cost of power generation units consists from the cost of

fuel, oils, spare parts and operation and maintenance costs.

As mentioned Previously RAEC power stations are of

different types and capacities and located in isolated areas

in Oman, therefore cost of generating power units is

different from site to site.

Figure 2.12 and table 2.13 show the generated per unit

costs of RAEC power stations in all areas of license. Cost of

power distribution and billing is excluded.

From the table it is shown that per unit cost of generation

of most Power Stations is more than RAEC average value.

Fig 2.12: Per unit cost of generation of RAEC Powerstations

Table 2.13: Per unit cost of generation of RAECPower stations


27/89


2.4.4 Case Studies of Power Flow.

By the use of ReticMaster Software Case Studies of power flow, loss, and voltage drop in 11 and

33 KV systems from different RAEC systems of demand more than 1 MW in 2008 has been done

with the following assumptions:

Single Line Diagrams of Power circuits in 2008 are used.

Maximum Loads in summer 2008 were used in the analysis. If detail loads on each 11/

0.433 KV transformer not available, the maximum loads in summer 2008 have been

distributed among loading areas with reference to a load factor depends on the existing

capacity of equipment to the maximum load at the feeder. The load values are used for thecalculation of load flow, power loss and voltage drop calculations.

The available specifications of equipment are used in calculations, in case specifications not

enough for calculations, specifications of standard equipment were determined from the

software library.

Power Factor was assumed to be 0.85 or 0.8.

Calculations were done for the existing status of systems.

Power Flow analysis, losses and voltage drop calculations have been done using the ReticMaster.

The ReticMaster 2008 used for power flow analysis has the technical specifications detailed below:

Technologies

Combined High, Medium and Low voltage technologies, simulations with unbalance and

diversityinclude:

Delta or Star, 2 to 4 wire systems (120 Phase displacement) modeling,

1 phase systems (Phase to Neutral) modeling,

Single Wire Earth Return systems (SWER) modeling,

Dual phase systems (180 Phase Displacement, two phases & neutral).

Radial / Limited Mesh System Analysis

Any user defined voltage level (e.g. 275kV, 132kV, 400V, 120V, etc.)

Full Technology Mix


28/89


Calculations are automatic

An unlimited number of nodes are supported

Results are immediately available and may be displayed as required Voltage analysis (caters for unbalance)

Current Flow analysis

Fault current analysis:

Three phase faults

Phase to Ground faults

Phase to Neutral faults

Phase to Phase to Ground faults

Phase to Phase faults

Full load energy and losses energy calculations are performed

Demand Side / Energy Management

Load types include Constant Power, Constant Impedance & Constant Current

Full domestic algorithms are available using appropriate diversity calculations for

residential load modeling.

Statistical load analysis is available for residential load modeling

Output

Graphic reporting such as under/over-voltage and over loaded equipment

Voltage profiles are directly available & are dynamically updated during network

modifications.

Fault current profiles are available & dynamically updated

User definable GUI outputs are directly available

User definable text reports are directly available

Text Report of problems such as:

Open points,

Islands,

Voltage problems,

Rating problems and

Unbalance problems.

Detailed results for RAEC systems as Case studies are shown in the CD-ROM.

The followings are current and voltage profiles and alerts of main systems from RAEC areas:


29/89


1. Power Flow analysis at Khasab 11 & 33kV Power system (Musandam Area):

Output of the software indicates the following: Software output is shown in appendix 1 ).

Maximum demand at many locations exceeds the carrying capacity of feeders and transformers

Figs 2.13&2.14 .

From

the

From

load

Feeders Current

Carrying Capacity

Maximum Current 2008

Fig 2.14: Voltage Profile capacity.Output fromReticMaster SoftwKhasab Power Sys2008

Fig 2.13: MaximumDemand and feedercurrent carryingcapacity. Output fromReticMaster SoftwarKhasab Power Syste2008


30/89


flow analysis it is concluded that reinforcement work is required to many parts of the distribution network

feeders and transformers at Khasab area to overcome overloading and under voltage problems at some

areas as shown in table 2.14 bellow.

N

o.Equipment Branch Description

LM

(kM)I max A I of A

Reinforcement Work

Required

1TX No. 2 Al QADI 500kVA 11kV/430V Star

Dyn1[30]

- 743.77 103.1 Changing transformer to

1000 kVA.

2TX_40 500kVA 11kV/430V Star

Dyn1[30]


1000 kVA.

3O/H line from BB

to TX 56 Feeder 6

dog (70m) 0.07 251.54 100.6 Changing O/H line to

3X185 U/G Cable

4O/H line from TX

56 to TX No. 13


3X185 U/G Cable

5TX No. 27 315kVA 11kV/430V Star

Dyn1[30]


500 KVA.

6O/H line from BB

to TX 48 feeder 3


3X185 U/G Cable

7O/H line at TX 48

feeder 3


3X185 U/G Cable

8

O/H line from TX

48 to TX no 70


3X185 U/G Cable

9O/H line from TX

72 a


3X185 U/G Cable

10O/H line from TX

73


3X185 U/G Cable

11O/H line from TX

1


3X185 U/G Cable

12O/H line from TX

61


3X185 U/G Cable

13O/H line from TX

75


3X185 U/G Cable

14TX 10 500kVA 11kV/430V Star

Dyn1[30]


1000 KVA.

15TX 410 500kVA 11kV/430V Star

Dyn1[30]


500 kVA.


31/89


32/89


2. Power Flow analysis of Saih Al Khairat 11 kV Power system (Dhofar Area) .

The followings have been deduced from the power flow analysis: Software output is shown in

appendix 2 ).

Maximum current is within the feeders current capacity Fig 2.15 . The conductor is too long therefore

high load loss was indicated from the analysis table 2.16.

Fig 2.15: Maximum Demand and feeder current carrying capacity.Output from ReticMaster Software Shasir Power System.


33/89


Voltage Profile Curve fig 2.16 indicates that voltage drop along through the power system is morethan the accepted value. Therefore work is required for relocating the current voltage regulator to a

location marked on fig 2.17.

Starting Location

of under voltage Area of under

voltage

Existing Location

voltage regulator Fig 2.17 VoltProfile of F2(Shasir AreaWith proposlocation ofvoltage regu

Fig 2.16 VoltProfile of F2(Shasir AreaWith out volregulator


34/89


3. Power Flow analysis at Mazyounah 11 kV Power system (Dhofar Area) .

The followings have been deduced from the power flow analysis (Software output is shown

in appendix 3). Under ground cables are used as feeders current capacity, therefore load losses

and voltage drop is limited Figs2. 18 and Fig 2.19.

Fig 2.19 VoltProfile of feeat Al MazyunPower Syste

Fig 2.18: MaxDemand and fcurrent carryicapacity. Outpfrom ReticMasSoftware (AlMazyuna PowSystem).


35/89


4. Power Flow analysis at Masirah 11 kV Power system (Al Sharqiyah Area) .

The followings have been deduced from the power flow analysis ( Software output is shown

in appendix 4). Under ground cables are used as feeders current capacity, therefore load losses

and voltage drop is limited Figs2. 20 and Fig 2.21.

Fig 2.20: MaxiDemand and fecurrent carryincapacity. Outpfrom ReticMasSoftware MasiPower System2008

Fig 2.21: VolProfile, Outpfrom ReticMaSoftware MaPower Syste2008


36/89


Power Flow analysis at Hiij 11 kV Power system (Al Sharqiyah Area) .The followings have been deduced from the power flow analysis: Software output is shown in

appendix 5).

Maximum Current is about 10% of current carrying capacity of the conductor and,therefore load loss is too small as shown in figures 2.22&2.23. Oversized conductors areused to overcome voltage drop.

Fig 2.22 CurrentProfile at Hiijpower system

Fig 2.23 VoltageProfile at Hiijpower system


37/89


5. Power Flow analysis at Aduqum 11 kV Power system (Wusta Area) .

The followings have been deduced from the power flow analysis:Software output is shown in in

appendix 6).

Maximum Current is about 10% of current carrying capacity of the conductor and,

therefore load loss is too small as shown in figures 2.24&2.25.

Fig 2.24 CurreProfile at AlDuqum powersystem

Fig 2.25Voltage Profat Al Duqumpower system


38/89


6. Power Flow analysis at Al Jazir 11 kV Power system (Wusta Area) .

The followings have been deduced from the power flow analysis: Software output is shown in in

appendix 7).

Maximum Current is less than of current carrying capacity of the conductor and, therefore

load loss is too small as shown in figures 2.26&2.27.

Fig 2.26 CurrentProfile at Al Jazirpower system

Fig 2.27 VoltageProfile at Al Jazirpower system


39/89


7. Power Flow analysis at Ras Al Madrakah 11 kV Power system (Wusta Area) .


appendix 8).

Maximum Current is less than current carrying capacity of the conductor and, therefore

load loss is too small as shown in figures 2.28&2.29.

Fig 2.28Current Profileat Ras AlMadrakah

power system

Fig 2.29Voltage Profileat Ras AlMadrakahpower system


40/89


8. Power Flow analysis at Khawaimiah 11 Kv Power system (Wusta Area) .


appendix 9).

Maximum Current is less than current carrying capacity of the conductor and, therefore load

loss is too small as shown in figures 2.30&2.31.

Fig 2.30Current Profileat Khawaimahpower system

Fig 2.31 VoltageProfile atKhawaimahpower system


41/89


9. Power Flow analysis at Wadi Aswad 33&11 kv Power system (Wusta Area) .

The followings have been deduced from the power flow analysis:Software output is shown in in

appendix 10).Maximum Current is about 10% of current carrying capacity of the conductor and,

therefore load loss is too small as shown in figures 2.32&2.33.

Fig 2.32CurrentProfile at

WadiAswadpowersystem

Fig 2.33 VoltagProfile at Wad

Aswad powersystem


42/89


2.4.5 Losses in Distribution Systems.

Total losses in power systems are mainly technical and nontechnical losses. The technical losses result

from power flow in distribution networks and equipment at 33 kV, 11 kV and LV systems and are divide

into Load and no load losses. The non technical losses result from inaccurate data delivered, power

metering and other factors related to system users; therefore it is difficult to be determined. Calculating

of Power loss requires detailed information of the distribution networks including type, size and length of

conductors, specifications of distribution equipment, details of maximum loads on transformers and

feeders, etc. Table 2.16 shows a comparison between total, no load and load losses at different areas of

RAEC power systems.

Table 2.16 Losses at 11 &33 KV systems of RAEC main systems.

PowerSystem

MaximumDemand(kW)

Power Loss of 11kV System atMaximumDemand (kW)

Loss Percentageof 11 kV systemfrom ReticMaster%

Total LossPercentage%

Percentageof no loadLoss from11 kV TotalLoss

Dibba (F1&2) 3,040 153 5.03 8.6 43.14

Saih Al Khairat 5,624 384 6.6 28.6 17.0

Hiij 3,400 113 3.32 9.9 23.89

Khasab 21,726 1460 6.72 17.7 47.05

Al Jazir 3,455 255 7.38 19.5 10.2

Wadi Aswad 2,749 184 6.69 N/A 22.83

Masirah 8,495 210 2.47 5.9 24.76

Ras Madrakah 1,710 49 2.87 N/A 36.79

Khawaimah 2,379 76 3.20 46% 15

Al Mazyunah 2,632 71 2.70 24.8% 26.62

Al Duqum 1,395 26 1.86 N/A 48.85


43/89


3.0 Demand on RAEC Power systems:

3.1 Profiles of Current Demands.

The main type of customers at RAEC areas of license is residential; therefore it becomes the main factor

influencing the demand profiles. From the demand profiles in 2008 it is shown that the demand

decreases sharply in Jun and February, then it starts increasing and decreasing in such a way reflecting

the climate temperature. In Dhofar region demand reduces during June, July and August (Khareef

season) and then increases as temperature increases again till October when it starts decreasing. Wusta

Region has the same climate phenomena as that in Dhofar and reflects the same demand profile as that

of Dhofar area. Khasab Region hasnt the climate phenomena as in Dhofar and Wusta regions therefore

the demand profile shows increase from February and continues at maximum from May up to October

when it starts seasonal reduction.

Many power stations in Dhofar area are not affected by the climate phenomena; therefore the type of

demand profile is different from the others. The un effectiveness is either that the locations of these

power stations are far away from climate phenomena such as Al Mazyuna power station or the main type

of demand is not residential as in Saih Al Khairat Power Station.

Figures 3.1-3.12 and table 3.1 show the anuual maximum demand profile of RAEC differnet areas in

2008

-

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

0 2 4 6 8 10 12 14

Fig 3.1 Profileof MaximumDemand atdifferentregions ofRAEC areas in2008 License(2008)

Maximum


44/89


0

5000

10000

15000

20000

25000

30000

35000

40000

0 2 4 6 8 10 12 14

Demandin 2008

kW Jan. Feb. March April May June July Aug. Sept. Oct. Nov. Dec.

Masandam

Max . 16715 15990 24317 31732 42820 43625 44785 44575 42808 42675 31524 18200

Masandam

Min 6970 6435 9215 13971 16781 23281 25673 24654 25380 17499 10815 8949

Wusta

Max. 7,924 8,705 13,397 17,467 17,667 17,489 10,955 12,501 16180 16097 13098 10036

Wusta

Min. 3114 2817 2702 6123 7663 5587 4602 4748 6408 5795 2990 3849

Dhofar

Max. 9,311 9,192 11,931 14,442 15,105 16,077 14,119 13,934 16,070 14,343 11,778 10,440Dhofar

Min. 2712 3217 3473 3673 4629 4761 5111 4608 4785 4380 4293 3420

RAEC

Max. 33,950 33,887 49,645 63,641 75,592 77,191 69,859 71,010 75,058 73,115 56,400 38,676

RAEC Min. 12796 12469 15390 23767 29073 33629 35386 34010 36573 27674 18098

16218

Fig 3.2 Profile oMinimum

Demand atdifferent regionof RAEC areas oLicense (2008).

Minimum

Months

Table 3.1 Min. & Max.Demands at different regions of RAEC areas of License (2008).


45/89


-

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

50,000

- 2 4 6 8 10 12 14

Khasab Power Station Diba Power Station

Madha Power Station Masandam Profile Demand

0

2000

4000

6000

8000

10000

12000

14000

16000

18000

20000

0 2 4 6 8 10 12

Group 1 of Power Stations Hijj Power Station

Group 2 of Power Stations Masirah Power Station

Fig 3.3 demandProfile at

Masandampower systems(2008)M

aximum

Months

Months

Maximum

demand(kW)

Fig 3.4 demand

Profile at Wustapower systems(2008)


46/89


0

2000

4000

6000

8000

10000

12000

14000

16000

18000

0 2 4 6 8 10 12 14

Shaab Esaib Power Station Group 1 of Power Stations

Saih Al Khairat Power Station Group 2 of Power Stations

0

500

1000

1500

2000

2500

3000

3500

4000

0 2 4 6 8 10 12 14

Months

Hijj Area Load Profile Fig 3.6 LoadProfile at HiijPower SysteMax. &MinWusta Regio(2008).

Fig 3.5 demanProfile at Dhopower system(2008)

Months

demandkW

Maximum

demandkW


47/89


-

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

0 2 4 6 8 10 12 14

Max Demand Profile at Masirah PS Min. Demand Profile at Masirah PS

-

500

1,000

1,500

2,000

2,500

0 2 4 6 8 10 12 14

Max Demand Profile at Shaab Esaib PS

Min Demand Profile at Shaab Esaib PS

Fig 3.7 Load

Profile at MasirahIsland PowerSystem Max. &Min

, Wusta Region(2008)

Fig 3.8 LoadProfile at ShahabEsaib PowerSystem Max. &Min,Wusta Region(2008)

Months

Months

demandkW

demandkW


48/89


-

200

400

600

800

1,000

1,200

1,400

1,600

1,800

2,000

0 2 4 6 8 10 12 14

Max Demand at Mazyouna PS Min Demand at Mazyouna PS

-

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

0 2 4 6 8 10 12 14

Max Demand at Saih Al Khairat PS Min Demand at Saih Al Khairat PS

Fig 3.9 Load Profat Al MazyunahPower System Ma&Min, DhofarRegion (2008)

Fig 3.10 Load Proat Saih Al Khairat

Power System M&Min, DhofarRegion, the area irrigation type ofdemand (2008).

Months

Months

demandkW

demandkW


49/89


-

50

100

150

200

250

300

350

0 2 4 6 8 10 12 14

MaxDemand at Al Halaniat PS Min Demand at Al Hilaniat PS

0

5

10

15

20

25

30

35

1 2 3 4 5 6 7 8 9 10 11 12

Khasab Max. Demand 2008

Khasab Min. Demand 2008

Fig 3.11 LoadProfile at Al Hilaniat

Power System Max.&Min, DhofarRegion

Fig ( 3.12) LoadProfile at Khasa

Power System M&Min, MasandamRegion

Months

Months

demandkW

demandkW


50/89


3.2 Forecasted Demand.

3.2.1 Demand from regions normal growth

Demand in RAEC systems has shown continuing growth due to the development at the areas of license.

Figure 3.13 and table 3.2 show the peak demand in 2006, 2007 &2008 from the trend, annual growth

has been calculated as follows: the Average demand of 2006, 2007&2008 is calculated, then annual

growth as percentage value is estimated from the difference of demand in 2008 from the average divided

by the average. Average Demand =( 2006,2007&2008)/3 , then annual growth= (Demand

2008-Average)/Average*100.

.

0

20

40

60

80

100

120

140

160

0 1 2 3 4 5 6 7 8 9

MAX.DEMA

ND(MW)

Fig 3.13 Load Projection at RAEC Power 2009-2013 (Normal growth)

Year


51/89


R.S.No. R.S.Name

AvailableCapacity2009

(MW)

2006PeakDemand

(MW)

2007PeakDemand

(MW)

2008PeakDemand

(MW)

AveragePeakDemand

(MW)

AnnualGrowth

%

2009PeakDemand

(MW)

2010PeakDemand

(MW)

2011PeakDeman

(MW)

03/006 Kumzar0.80 0.70 0.240 0.840 0.770 0 0.840 0.840

0.840

03/001 Al Rawda0.22 0.160 0.130 0.135 0.142 0 0.135 0.135 0.135

03/002 Dibba13.944 8.350 9.200 11.200 9.583 17 13.089 15.298 17.87

03/004 HB Hameed0.124 0.049 0.059 0.055 0.054 1 0.056 0.056 0.057

03/005 Khasab32.908 26.900 27.700 30.000 28.200 6 31.915 33.952 36.11

03/007 Madha6.010 2.580 2.950 3.420 2.983 15 3.921 4.494 5.152

02/019 Masirah 8.478 6.470 7.290 7.500 7.087 6 7.937 8.400 8.890

02/001 AbuMudhabi0.535 0.395 0.400 0.265

02/027 Sawgrah 0.467 0.275 0.240 0.160 0.225 0 0.160 0.160 0.160

02/004 Al Kahal4.288 0.700 0.830 0.950 0.827 15 1.092 1.255 1.442

02/005 Al Khaluf1.600 0.134 0.322 0.228 41 0.455 0.642 0.907

02/006 Al Khuiaima0.96 0.590 0.680 0.750 0.673 11 0.835 0.931 1.036

02/007 Al Lakbi1.419 0.705 1.105 1.245 1.018 22 1.522 1.861 2.275

02/008 Alajaiz0.904 0.160 0.330 0.410 0.300 37 0.560 0.766 1.047

02/010 AlNajdah1.76 0.024 0.255 0.140 83 0.466 0.852 1.558

02/012 AlZhaiah0.320 0.221 0.240 0.242 0.234 3 0.250 0.258 0.267

02/016 Hij 8.48 2.830 3.350 3.425 3.202 7 3.664 3.919 4.193

02/017 Hitam1.064 0.021 0.240 0.131 84 0.441 0.812 1.493

02/025

Ras

Madraka0.863 0.400 0.590 0.845 0.612 20 1.014 1.217 1.460

02/030 Surab1.800 0.160 0.385 0.273 20 0.462 0.554 0.665


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02/031 Al Duqm1.060 1.330 1.270 1.420 1.340 6 1.505 1.595 1.690

02/032 Al Dhafrat1.48 -------- ------- ------- ------- 10 0.450 0.495 0.545

02/020 Masrooq0.523 0.179 0.210 0.299 0.229 30 0.390 0.508

0.663

01/001 Al Halaniyat1.280 0.255 0.260 0.320 0.278 15 0.368 0.423 0.486

01/002 Al Mathfa0.388 0.06 .06 .078 .070 10 0.078 0.086 0.095

01/005 Ayboot (1)0.396 0.085 0.095 0.109 0.096 13 0.123 0.140 0.158

01/006 Ayboot (2)0.460 0.060 0.130 0.190 0.127 50 0.285 0.428 0.641

01/007 Ayun0.596 0.142 0.170 0.180 0.164 10 0.198 0.217 0.238

01/008 Barbazum0.790 0.200 0.270 0.270 0.247 9 0.296 0.323 0.354

01/009 Bithina

01/010 Dalkut A1.184 0.700 0.880 0.790 11 0.980 1.092 1.216

01/011 Dalkut B2.502 1.531 1.630 1.581 3 1.681 1.734 1.788

01/012 Dhahabun0.783 0.410 0.430 0.460 0.433 6 0.488 0.518 0.550

01/014 Fatkhat0.368 0.072 0.105 0.115 0.097 18 0.136 0.161 0.190

01/015 Hasik 0.957 0.740 0.820 0.790 0.783 1 0.797 0.804 0.810

01/016 Hirweeb0.700 0.230 0.301 0.335 0.289 16 0.389 0.451 0.524

01/017 Horaat0.390 0.140 0.145 0.173 0.153 13 0.196 0.222 0.252

01/019 Mahwice0.318 0.115 0.120 0.119 0.118 1 0.120 0.121 0.122

01/020 Maqshan1.112 0.460 0.460 0.400 0.440 0 0.400 0.400 0.400

01/021 Mazyunah1.926 1.635 1.530 1.720 1.628 6 1.817 1.919 2.027

01/022 MirbatClosed

01/023 Mitan0.790 0.450 0.510 0.530 0.497 7 0.566 0.604 0.644

01/024 Mothorah 0.380 0.130 0.161 0.146 11 0.178 0.197 0.218


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Table 3.2 Estimated normal growth 2009-2011

01/025 Mudhai1.000 0.480 0.511 0.557 0.516 8 0.601 0.649 0.701

01/026 Rabkut0.640 0.160 0.230 0.250 0.213 17 0.293 0.343 0.402

01/030 SadahClosed

01/031 SadhoonClosed

01/032 Saih Alkirat16.435 2.340 3.700 4.580 3.540 29 5.926 7.666 9.919

01/033 Salalah 1Closed

01/034 Salalah 2Closed

01/035Shahb

Asayb2.800 1.645 2.016 2.260 1.974 15 2.588 2.963 3.393

01/037 Sharbatat2.182 0.640 0.680 0.620 0.647 0 0.620 0.620 0.620

01/038 Shasir2.280 2.280 0 0.000 0.000 Closed

01/039 Thumryt0.000 0.000 0.000 Closed

01/040 Tushnat0.720 0.160 0.165 0.175 0.167 5 0.184 0.193 0.203

01/004 Andat

RAEC 118.972 65.693 72.162 80.922 90.389 100.1 114.32


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3.2.2 Proposed new Connections to RAEC systems:

Power Demand at RAEC areas of license showing continues growth. New connections are being studied

and electrification plans are scheduled to meet requirements as per the conditions of sector law.

Applications suited to new connections in 2009 are shown in table 3.3. Tables 3.4 and 3.5 show the

planned connections in 2010 and 2011 respectively. Other bulk demands are predicated to be catered

through 2010-2011 this is concentrated in Wusta (Aduqum) and Musandam. Table 3.6 shows a list of this

bulk demands. The power demand of the new connections is planned to be met by the construction of

new 11 and 33 substation and extension works at different distribution systems at RAEC. Satisfying the

demand of the new connections with the normal growth of the connected customers in efficient and

secured criteria, requires the upgrading of many power generation capacities, constructing new power

generation stations, interlinking of existing power systems to form TSO nad DSO systems .Tables 3.3-3.7

and figures 3.14-3.18 detail the new connections to RAEC power systems (2009-2011) normal growth

and bulk demands areas and regional , the areas and regions predicated demand with number and

category of customers predicated to be connected to RAEC systems up to the end of 2011.

3.2.2.1 Planned connections in 2009

Table 3.3 bellow shows the New Connections planned to be connected to RAEC power system in 2009.

Sl.No Willayat

No. of

Cust

Demand

(kW) Project Name

1Wusta/

Aduqum947 10,000

EPC for 33/11kV Substations and 33kV Distribution Network at

Al Duqm Area in Al Wusta Region.

2 Dhofar/ Hasik 212 1,700Power Supply to New Houses in Hasik Area in Dhofar

Governorate.

3Dhofar/

Hairoon22 210

Extension of HV& LV Distribution Networks (O/H Lines & U/G

Cables ) to Give a Power Supply at Hairoon Village .

4 Wusta/ Adam 16 1,000Extension of 33kV and Lv OH lines for power supply to Ghabain Wilayat Adam.

5 Wusta/ Hijj 440 3,500

Erection of Step-Up Transformer(11/33kV) at Hijj Power

Station and Construction of 33kV Overhead Line to Masila Area

in Wilayat Mahoot Al-Wusta Region.


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6 Wusta/ Hijj As in 5

Construction of 33kV Overhead line and Erection of

(33/11kV)Primary Substation at Muderah North in wilayat

Mahoot in Al-Wusta Region.

7Wusta/

Mahoot52 370

Extension of 11kV and LV to feed power supply to Nafi Area at

Wilayat Mahoot in Al Wusta.

8Musandam/

Khasab361 3300

Electrical Dstribution works ( 433V & 11kV Network Extensions

) To feed power Supply To Al- Sanayia Planned Area in Wilayat

Khasab at Musandam Governorate.

9 Wusta/ Hijj As in 5Construction of 33kV Overhead line to Al-Joubah west area

wilayat Mahoot in Al-Wusta Region.

10Dhofar/ Al

Mazyunah25 240

Extension Of 433V & 11 kV Networks To Feed Power Supply To

Un- Electrified Houses At Mazyuna.


Electrical Distribution works ( 433V & 11kV Network Extensions

) to feed power Supply to Wadi Al-Sail South at Wilayat

Mahoot Al-Wusta Region.

12Wusta/ Al

Jazir5 50

Extension of 433V and 11kV network extension to feed power

supply to Gubrah south Al Wilayat Al Jazer.



) to feed power Supply to Wadi Al-Sail North Area in Wilayat


14 Wusta/ Hijj As in 5Construction of 33kV Overhead line to Muderah South area in

wilayat Mahoot Al-Wusta Region.



) to feed power Supply to Muderah Area(Part-1) in Wilayat




) to feed power Supply to Abu Hasab Area near Wadi Al-SailSouth at Wilayat Mahoot Al-Wusta Region.



) to feed power Supply to Muderah Area(Part-2) in Wilayat



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18 Wusta/ Hijj 15 160Extension of 11kV and LV to feed power supply to Al Jamaza

Village area at Wilayat Al Mudhaibi in Al Shargiyah(Part 1).

19 Wusta/ Bahla 15 150


) To feed power Supply To Aseel Area in Wilayat Bahla in

Dakhliya Region.

20Wusta/ Al

Jazir

Extension of 11kV and Lv OHL power supply to feed Abu Tahal

area.

21Wusta/ Al

Jazir

Extension of 11kV and Lv OHL power supply to Al Ajaiz north.


Extension of 11kV and LV to feed power supply to Al Jamaza

Village area at Wilayat Al Mudhaibi in Al Shargiyah(Part II).

22

Dhofar/

Shahab

Essaib

Extension of 33Kv O/H Lines & U/G Cables to Interlink Shahab

Asaib P/S to Dhalquot area & construction 33/11Kv Outdoor

substation at hafoof.

23Dhofar/ Horat

Extension of 33Kv overhead line for Interlinking Horat with

Mudhai(Ayboot -1) in Dhofar Governorate.

24Wusta/ Al

Jazir20 210

Electrical Distribution works ( 433V & 11KV Network Extensions

) To feed power Supply to un electrified houses at Wilayat Al-

Jazer Al Wusta Region.

25Wusta/

Mudhai

Extension of 33Kv overhead line to Interlinking Ayboot-2 with

Mudhai (Ayboot -1) in Dhofar Governorate.

26Musandam/

Dibba5 60

Extension of 433V&11KV Networks to Feed Power Supply to

Un- electrified locations at Wilayat Dibba in Musandam

Governorate.

27Wusta/ Ras Al

Jabal20 200


) To feed power Supply to un electrified houses and farms at

Ras Al - Jabal in Wilayat Adam.


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28Wusta/

Mahoot

1 2000


) To feed power Supply To the Sultan's Special Force Camp at

Wilayat Mahout Al Wusta Region.

29Musandam

/Khasab10 120


Un- electrified locations at Wilayat Khasab in Musandam

Governorate.

30Musandam/

Bukha7 70


Un- electrified locations at Wilayat Bukha in Musandam

Governorate.

31 Musandam/Khasab

10 100

Electrical Dstribution works ( 433V & 11KV Network Extensions

) To feed power Supply To Aqbath Rubia Area in Wilayat

Khasab at Musandam Governorate.

Table 3.3 New Connections to RAEC power system in 2009.


Table 3.4 bellow shows the New Connections planned to be connected to RAEC power system in 2010.

Sl.

NoWillayat

No. of

Cust

Demand

(kW)Project Name

1Wusta/

Aduqum20 200

Power Supply to Shuwaier Village by the extension of 28 km, 11

kV line to for Exdental Company network at the area with

distribution network and transformers.

2 Wusta/ Al Jazir 40 400Power Supply to Nafoon Village by the extension of 41km, 11 kVline from the new duqum network with distribution network and

transformers.

3 Wusta/ Mahoot 26 250

Power Supply to Habdah Village the Village can be powered by

the extension of 7 km, 11 kV line from Khaloof network with



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4Wusta/ Jalan

Bani Bu Hassan30 300

Electricity Supply to Al Juwairiah Village the Village can be

powered by the extension of 35km, 11 /33KV line from the

network with distribution network and transformers.


Power Supply to Sadrah &Madrasah Village by the extension of

15km, 11 KV line from the Nafoon network with distribution

network and transformers.


Power Supply to 10 villages at Wadi Sail (Daasil, Ghafat

Rashid,.) by the networkexecuted in stage 1 from Hij power

station with distribution network and transformers.


Power Supply to Film Village by the extension of 26 km, 11 KV

line from Hij power station with distribution network and

transformers.

8Sharqiyah/

Masirah300 3500

Power Supply to new planned area at Nahdah City by the

extension 33 KV U/G Feeders from Masirah Power Station with


11 Dhakiliyah/Masrooq

N/A N/A

Interlinking Masrooq area to Majan PS by the extension of 45

Km , 33 KV OHL with step/ down S/s. To implement TSO systemby the connection of Masrooq area to Majan MIS and shut down

Masrooq

12 Wusta/ Haima. N/A N/A

Construction of new primary 33/11 KV Substation at Haima and

increase its capacity to 2x20 MVA primary S/s to satisfy MoD and

the other area growth of demand requirements.

13Musandam/

Khasab15 200

Electricity Supply to Ramt Village by the extension of 3km,

11KV line from the network with distribution network and

transformers.

14Musandam/

Khasab6 80

Electricity Supply to Umais Village by the extension of 2.0km,

33KV line from the network with distribution network and

transformers.

17Dhofar/

Thamreet40 500

Electricity Supply to Bithenah Village .


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18Dhofar/

ThamreetN/A N/A

Install new voltage regulator at Saih al kairat to overcome the

voltage drop at the area.

19Musandam/

KhasabN/A N/A

Import and install two voltage regulators to Jabal Aqabat at

Khasab to overcome the voltage drop at the area.

21 Dhofar/ Tusnat N/A N/A

Interlinking of Tusnat network with Anadat by the extension of

15 Km , OHL ,11 kV ,33 KV configuration to shut down Tusanat

and implementing DSO system at the area.

22 Dhofar/ Hiroot N/A N/A

Interlinking of Hiroot network with Anadat by the extension of

15 Km , OHL ,11 kV ,33 KV configuration to shut down Hiroot PS


23Dhofar/

MatorahN/A N/A

Interlinking of Matorah network with Hiroon by the extension of17 Km ,33 KV OHL to shut down Matorah and implementing DSO

system.

24Dhofar/

HirweebN/A N/A

Interlinking of Hirweeb network with Motorah by the extension

of 17 Km , OHL ,11 kV ,33 KV configuration to shut down

Hirweeb and implementing DSO system at the area.

25 Wusta/ Hitam 7 85

Power Supply to Deethab Gharb Village by the extension of 1.8

km, 11 KV line for Exdental Company network at the area with


26 Sharqyiah/

Masirah

10 100

Power Supply to Difiat Village by the extension of 2.5km, 11 KV

line from the network near the hotel with distribution network

and transformers.

27Sharqyiah/

Masirah7 65

Power Supply to Ghadeer Village by the extension of 1.5km, 11

KV line from the network with distribution network and

transformers.

28Sharqyiah/

MasirahN/A N/A

interlinking Hajjer B. Hameed to Madha to shut down HBH PS


29Sharqyiah/

MasirahN/A N/A

Interlinking MoD network at Masirah to RAEC PS to form a DSO

system and Connecting MoD base at Masirah to RAEC power

station. The work should be done by the Construction of new

11/33 substations and laying of 33 KV U/G cable .


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Table 3.4 New Connections to RAEC power system in 2010.


30 All RAEC areas N/A N/A

Power Extension to customers at different areas

Extension of power to customers at different areas of North,

Wusta and south regions of RAEC

31 All RAEC areas N/A N/AReinforcement works at different areas of North, Wusta and

south regions of RAEC.

32Wusta/

Aduqum

Distribution network for Duqum residential areas Phase 1, 11kV

network, distribution transformers, LV network and connections

to 938 customers in new Aduqum residential area.

Sl.No

WillayatNo. of

Cust.

Dem.

(kW)Project Name

1

Wusta/ Adam

8 100

Power Supply to Ghabat Al Haqaf Village by the extension of 18 km,

33 KV line from PDO network at the area with distribution network

and transformers.

2

Wusta/ Adam

11 120

Power Supply to Al Mukhaiznah Village by the extension of 8 km, 33

KV line for Exdental Company network at the area with distribution

network and transformers.

3

Wusta/

Al Jazir 7 90

Power Supply to un electrified houses at South Ghubrah-Ghfoodh

Village by the extension of 30 km, 11 KV line from the existing at the

area with distribution network and transformers.

4

Wusta/ Mahoot

11 120

Power Supply to Al Baseer Village by the extension of 21 km, 11 KV

line from Madeerah 33/11 kV Ss with distribution network and

transformers.

5Sharqiyah/

Masirah44 400

Power Supply to Dowa Village by the extension of 11km, 11 KV line

from the network with distribution network and transformers.

6Sharqiyah/

Masirah26 200

Power Supply to Sur Masirah Village by the extension of 9.0km, 11

KV line from the network with distribution network and transformers.


61/89


7Musandam/Dib

ba8 110

Electricity Supply to Aqabah Village by the extension of (33kV &

0.433KV Networks) to feed power supply to Aqabah Vilage

8 Musandam/Khasab

4 55 Electricity Supply to Himssi Village by the extension of 3.5km, 11KVline from the network with distribution network and transformers.

9Musandam/

Khasab6 80

Electricity Supply to Nebbah Village by the extension of 4.0km, 11KV

line from the network with distribution network and transformers.

10Musandam/Dib

ba23 250

Electricity Supply to Adas Village the extension of 28.5, 33KV line


11

Musandam/

Dibba 12 130Electricity Supply to Al Shaira Village by the extension 14, 33KV line


13Dhofar/

Rakhyut6 75

Electricity Supply to Al Hottah Village by the extension of 12 km,

11 KV line with distribution network and transformers.

14

Dhofar/

Mazyunah 30 250

Electricity Supply to Tadhoo Village by the extension of 45 , 33KV

OHL from Mudhai new power station with step up/down S/s and

D.network .

15Dhofar/

Mazyunah15 100

Electricity Supply to Qafaa Village by the extension of 30 , 11KV

OHL from Tadhoo S/s with distribution network

16Dhofar/

Mazyunah

50 750Electricity Supply to Al Hishman Village by the extension of 40,

33KV L

17

Dhofar/

Maqshin6 4000

Electricity Supply to Doka Farms By the Extension of 60 , 33KV OHL

from Saih Al Khairat power station with upgrading the power station

by adding 8.0 Mw power capacity . Works include step up/down S/S

nd all the distribution network.

18Musandam/

Dibba4 55

Electricity Supply to Maawi Village by the extension of 1.0km, 33KV

line from the network with distribution network and transformers.

19

Wusta/ Al

Jazir10 115

Power Supply to un electrified houses at North Ghubrah Village

The Houses can be powered by the extension of 7 km, 11 KV line

from the existing at the area with distribution network and

transformers.

20Sharqiyah/

Masirah28 72

Power Supply to Al Samir Village by the extension of 4.0km, 11 KV

line from the network with distribution network


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Table 3.5 bellow shows the New Connections planned to be connected to RAEC power system in 2011

3.2.3 Special Bulk Demands at RAEC Areas (2009-2011).

In addition to the capacity demand above, Table 3.6 details Special Bulk Demands at RAEC power systems.

21

Wusta/ Mahoot

N/A N/A

Interlinking of Al Khloof power system to Hiij by the eExtension of

53 Km , 33 KV OHL with step/up& down S/s to implementing of DSO

system and shut down Al Khloof PS.

22

Wusta/ Al

Duqum 21 150

Power Supply to Wadi Zakhir Village by the extension of 7.0km, 11

KV line from Feeder No.2 Dhahar PS with distribution network and

transformers.

23

Wusta/ Al

Duqum 7 60

Power Supply to Dithab Gharb by the extension of 1.8 km, 11 KV

line from Feeder No.2 Hitam PS with distribution network and

transformers.

24Wusta/ Aseel

4 40Power Supply to Al Shuwaaid by the extension of 5.0 km, 11 KV line

from Aseel with distribution network and transformers.

25

Wusta/

Al Duqum 2109 12,600

Distribution network for Duqum residential areas Phase 2 by the

execution of 11kV network, distribution transformers , LV network

and connections to 2109 customers in new Aduqum residential area.

No. Scope of Demand Area Demand

(MW)

Proposed Action

1 Supply of New Duqum Town with

the required demand covering the

upcoming five years .

Wusta/

Duqum

81 Construction of New power plant of total

capacity 81 MW with complete

Distribution network at 33,11 and LV

networks.

2 Power Supply to Tourism resorts at

Khasb area

Musandam/

Khasab

18 New gas power plant of capacity 120 MW

with interconnection Khasab and Dibba

power system is under study.

3 Power Supply to Oman Oil

production and treatment plants at

Khasb area

Musandam/

Khasab

33 New gas power plant of capacity 120 MW

with interconnection Khasab and Dibba

power system is under study.


63/89


Table 3.6 Bulk Demands Required at RAEC Power systems.

3.2.4 Regional Forecasted Demand of RAEC systems:

Table 3.7 shows the forecasted maximum demand of RAEC systems 2009-2011

No. Region Max. Demand in

2008 (MW)

Areas forecasted

Normal Growth

Demand in

2011(MW)

Areas forecasted

Bulk Demand in

2011(MW)

Total Demand

in 2011 (MW)

1 Musandam 46 16 51 113

2 Al Sharqiyah &Wusta. 20 13 97 130

3 Dhofar 19 11 12 42

RAEC95 33 160 285

Table 3.7 Forecasted Demand at RAEC power areas.

4 Power Supply to Masirah Military

Base at Masirah area.

Sharqiyah/

Masirah

6 Construction New power station at

Masirah area is required to meet the areademand.

5 Power Supply to Doka, Khawater,

Maqshin Sofa Farms and other un

electrified villages at Dhofar area

Dhofar/ Saih

Al Khairat

12 Catering the mentioned areas with power

under study to decide the suitable option.

6 Power Supply to Omani Army at

Wusta region

Wusta/

Haima area

10 Extension of 33 kV line from PDO power

system .


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Musandam

46 MW

54%

Wusta

20 MW

24%

Dhofar

19 MW

22%

Masandam

113 MW

40%

Wusta

130 MW

45%

Dhofar

42 MW

15%Fig 3.15RAECareas ForecastedMax demand in2011

Fig 3.14RAECareas Max.Demand in 2008


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1 2 3

46

20 19

113

130

42

2008 ACTUAL MAX DEMAND (Mw) 2011 FORECASTED DEMAND

Masandam

Wusta&AlSharqyiah

Dho

far

Domestic

45%

Govermental

7%

Commercial

14%

MoD

4%

Agr.&Fisheries

5%

Hotels &Tourism13%

Industrial12%

Fig 3.16Growth

AreasDemand(2008-2011)

Fig 3.17PredicatedCategory ofRAECCustomersin 2011


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53.1

24.4

11.9

2.9 3.2 3.41.1

45.4

7

14

4.2 4.7

13.311.5

1 2 3 4 5 6 7

2008 Actual Maximum Demand

2011 Predicated Demand

D

omestic

Comm

ercial

Govermental

MoD

Agri&Fisheries

H

otels

&

Tourisim

Industrial

Fig 3.18 Predicated Growth in Category of RAEC Customers (2008-2011)


67/89


4.0 Constraints foreseen on RAEC systems

4.1 Status of power stations with the addition of the new connections.

Due to the Projection Demand at RAEC areas power systems and the inefficient operation of many power

systems, RAEC existing power systems and stations shall be in the conditions detailed in table 4.1 bellow.

No

S.No.

P.S.Name

2009A.

CapMW

2008Peak

Dem.MW

2011Exp

peakLoad

(MW)

Sh.incap.

(MW)

Power Station Status

1 03/006 Kumzar 0.8 0.840 0.840 -0.04Predicated Demand is more than station

capacity.

2 03/001 Al Rawda 0.22 0.135 0.135 0.09Predicated Demand is more than station

capacity.

3 03/002 Dibba13.94

411.20 17.878

-

3.934

Predicated Demand is more than station

capacity.

4 03/004HB

Hameed0.124 0.055 0.057 0.067

Small un efficient DG sets

5 03/005 Khasab

32.90

8 30.00 49.000

-

16.10


capacity..

6 03/007 Madha 6.01 3.420 5.152 0.858Predicated Demand is more than station

capacity.

7 02/019 Masirah 8.478 7.500 8.890-

0.412


capacity.

8 02/001Abu

Mudhabi0.535

9 02/027 Sawgrah 0.467Predicated Demand is more than station

capacity.

10 02/004 Al Kahal 4.288Predicated Demand is more than station

capacity..

11 02/007Al Lakbi

1.419Predicated Demand is more than station

capacity..

12 02/005 Al Khaluf 1.6 0.322 0.556 1.04Large DG sets (2x1000 kW) Supplying Low

Demand


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13 02 /006Al

Khuiaima0.96 0.750 1.036 -0.08


capacity.

14 02/008 Alajaiz 0.904 0.410 0.708 0.196OLD DG sets (1980)

15 02/010 AlNajdah 1.76 0.255 0.441 1.32Large DG sets (2x1000kW) Supplying Low

Demand

16 02/012 AlZhaiah 0.32 0.242 0.267 0.05 Small DG sets

17 02/016 Hiij 8.48 3.425 4.193 4.287

1802/017 Hitam 1.064 0.240 0.415 0.649 Large DG sets (2x1000kW) Supplying Low

Demand

1902/025 Ras

Madraka

0.863 0.845 1.460 -0.60 Predicated Demand is more than station

capacity.

20 02/030 Surab 1.8 0.385 0.665 1.13 Large D

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