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OETC Inks Pacts to Connect North, South Electricity Transmission Networks

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Muscat, Oct 26 (ONA) —- In-line with its efforts to enhance the energy infrastructure in the Sultanate, contribute to diversification of the national economy, reduce the consumption of fossil fuels (Gas & Diesel) and the reduction of Ozone-depleting gas emissions, Oman Electricity Transmission Company (OETC); member of Nama Group, today signed a number of agreements for the implementation of the first phase of “Rabt” project. The project aims to connect the National Grid in the north with Petroleum Development of Oman Company (PDO) electricity transmission network and Tanweer network in the Governorate of Al Wusta, in addition to the Special Economic Zone in Duqm (SEZAD) electricity network in the Willayat of Duqm.

 

The agreements were signed by Eng. Mas’oud bin Salam al-Riyami, Acting Chief Executive Officer of OETC in the presence of Eng. Omar bin Khalfan al-Wahaibi, Chief Executive Officer of Nama Group at OETC headquarters with representatives of the awarded contractors from a group of engineering companies specialized in building electricity transmission networks.

 

This phase of the project will pave the way for connecting the national grid in the north of Oman with Dhofar electricity transmission network, which will be implemented in the second phase of Rabt project.

 

The project is expected to enhance the efficiency and integration of the national electricity transmission networks. The project will also play a key role in securing the electricity network and opening up new horizons for the use of renewable energy sources, such as wind and solar which are abundant in the Governorate of Al Wusta.  

 

The project will connect isolated areas from the main system, such as Haima, Duqm and Mahut with the national grid. It will also connect the national grid with PDO network, thus enhancing the reliability of PDO network as it is currently based on 132 kV voltage. 

 

The project will help minimizing the use of gas in electricity generation in PDO electricity network as the electricity generation stations in the National Grid are relatively new and highly efficient. Moreover, “Rabt” project will help in reducing the cost of energy produced in Duqm and Mahut using diesel due to its high cost and its negative impact on the environment.

 

In-line with the Government drive to switch to renewable energy, this project will play a key role in achieving the government ambitions of producing 15% of the total energy from renewable energy sources by 2025 by connecting the future solar energy stations and wind farms in the Governorate of Al Wusta. Rabt project will also provide secure, stable and reliable electricity to the Special Economic Zone in Duqm as it will connect the Duqm Electricity network with the 400 kV National Grid, ensuring that the factories and large companies in Duqm are provided with their needs of electricity, which will further help attracting more investors to the zone, provide more employment opportunities and help growing the national economy.

 

The first phase of the project consists of 660 km 400 kV overhead lines, five main grid stations in Nuhaida, Barik, Suwaihat, Duqm and Mahut. The total cost of this phase is RO 183 million and divided into the following five projects:

 

The first project entails Construction of 400 kV grid stations at Barik and Suwaihat and linking them to PDO network. Barik station consists of twelve 400 kV gas insulated switchgear bays, two 132/400 transformers with a capacity of 500 Megavolt Ampere for each of them. This project also involves the installation of ten 132 kV gas insulated switchgear bays, four shunt reactors, control and relay panels and communication instrument, in addition to associated construction works. Suwaihat Station on the other hand consists of twelve 400 gas insulated switchgear bays, two 132/400 kV transformers with a capacity of 500 Megavolt Ampere for each of them, in addition to twelve 132 kV gas insulated switchgear bays, six shunt reactors, control and relay panels and communication instrument, in addition to associated construction works. The total cost of this part of Rabt project is around RO 39 million and will be implemented over a period of 24 months with 6 weeks period for mobilization.

 

The second project entails the construction of 400 kV overhead lines with a total length of 129 KM between Barik and Suwaihat stations and 400 kV transmission lines with a total length of 195 KM between Barik and Nuhaida stations. The project includes construction of overhead lines towers, insulators and associated construction works. The cost of this part of Rabt project is RO 45 million and will be implemented over a period of 28 months, in addition to 6 weeks for mobilization.

 

The third project involves the construction of Duqm and Mahut 400 kV stations. Duqm station consists of twelve 400 kV gas insulated switchgear bays, two 132/400 transformers with a capacity of 500 Megavolt Ampere each, eight 132 kV gas insulated switchgear bays, four 132/33 kV transformers with a capacity of 125 Megavolt Ampere for each of them, in addition to forty-two 33 kV gas insulated switchgear bays, six shunt reactors, control and relay panels and communication, as well as associated construction works. 

 

Mahut Station consists of nine 400 kV gas insulated switchgear bays, two 400/33 kV transformers with a capacity of 125 Megavolt Ampere for each of them, twenty-one 33 kV gas insulated switchgear bays, three shunt reactors, control and relay panels and communication instrument, in addition to associated construction works. These stations will support Tanweer network in meeting the growing demand for electricity in Duqm Special Economic Zone. The total cost of this part of Rabt project is RO 38 million and will be implemented over a period of 24 months, in addition to 6 weeks for mobilization.

 

The fourth project entails the construction of 400 kV overhead lines with a total length of 191 KM between Suwaihat and Duqm stations and overhead lines with a total length of 152 KM between Duqm and Mahoot stations. The project includes construction of overhead lines towers and insulators, as well as associated construction works. The cost of this part of Rabt project is RO 45 million and will be implemented over a period of 28 months, in addition to 6 weeks for mobilization.

 

The last project involves the construction of Nuhaida 132/400 kV station. Nuhaida station consists of fourteen 400 kV gas insulated switchgear bays, two 132/400 transformers with a capacity of 500 Megavolt Ampere each and eight 132 kV gas insulated switchgear bays, in addition to control and relay panels, communication and associated construction works. This project also involves the diversion of 400 kV transmission line linking Izki and Ibri stations through Nuhaida station. This station is considered as the main interconnecting point between National Grid in north of Oman and PDO electricity network. The total cost of this part of Rabt project is RO 17 million approximately and will be implemented over a period of 24 months, in addition to 6 weeks for mobilization.

 

Oman Electricity Transmission Company is responsible of the electricity transmission in the national grid in north of Oman, as well as in Dhofar Governorate where electricity is transmitted from the electricity generation plants to load dispatch centres distributed across the Sultanate. The transmission network uses 132 kv voltage and above, and it covers most of the Sultanate's governorates from the north down to the south. The company also manages the 220 kV electricity interconnection lines with GCC Grid.

—- Ends/KH