National Electric Grids, a state-owned company, has inked a contract for a new substation in Uzbekistan's Tashkent region, as outlined in a presidential decree from July 2020.
The project, awarded to "Uzelektroapparat-Elektroshield" through a competitive tender, aims to enhance power grid operations in the capital region and bolster stability in electricity supply, Ministry of Energy reported.
The digital substation, designed to have a capacity for 500 kilovolts, will be established in the Kuyichirchik region. Set for completion by the end of 2024, the facility's capacity of 1,602 MVA is expected to alleviate the load on the Keles main substation.
Financed by the World Bank, the project includes the construction of 285 km of high-voltage power lines to connect the new substation with the Syrdarya Thermal Power Plant and other grid facilities. These power lines will traverse key districts in the Tashkent region, facilitating improved connectivity and resilience in the power supply network.
In 2021, the Ministry of Energy had announced an agreement for Uzbekistan's first digital substation. The Shanghai Electric Group secured the construction contract, aiming for commissioning by the end of the following year.
The digital substation, integrates digital technology at the core of the substation. It focuses on the digitalization of both station-level and process-level aspects by converting analog measurement data and binary status information into digital data. This digitalization not only ensures secure and reliable data transmission but also leads to a significant reduction in investment and operating costs.
The fundamental drivers behind the digital transformation of electrical power systems include three major factors: initiatives for carbon neutrality to decrease overall carbon emissions, the shift towards decentralized energy generation for locally produced clean energy to meet local demands, and the adoption of digital technology (digitalization) to enhance cost efficiency and system integrity. This transformation extends to substation systems through the implementation of digital substations incorporating innovative process bus technology.
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