Power technologies leader Hitachi ABB Power Grids India, along with consortium partner Bharat Heavy Electricals Ltd (BHEL), has successfully energized the first stage of the 6,000 MW +/-800 kV Ultra-high Voltage Direct Current (UHVDC) transmission link connecting Raigarh in Central India to Pugalur in the southern state of Tamil Nadu.
In 2016, the consortium of Hitachi ABB and BHEL had won the order for the Raigarh-Pugalur 800 kV UHVDC transmission link from Power Grid Corporation of India Ltd (POWERGRID).
Post completion, the approx 1,800 km long two-way transmission line will have the capacity to meet the electricity needs of more than 80 million people in the country.
Also, this link will assist India on the journey towards increasing amounts of renewable power, by bringing large amounts of clean energy to the high consumption centers.
Significantly, when wind strength is low, it will support electricity demand in the South, and when it is in excess, transmit clean energy to the North.
It is in line with one of the key initiatives of the government to increase renewable energy capacity to 450 GW in the country’s electricity mix, and is also aligned with the UN Sustainable Development Goal of affordable and clean energy.
Commenting on the development, N Venu, Managing Director, Hitachi ABB Power Grids India, said “this is a proud moment for us. We have been involved in this project since 2016. With the completion of the first phase of the 6,000 MW +/-800 kV UHVDC project, braving difficulties posed by the Covid-19 pandemic, we will enable clean and reliable power for millions of people in the country. We are strongly committed to supporting the Government’s mission to bring 24/7 reliable power to all.”
Moreover, by occupying one-third of the space of a traditional AC transmission, HVDC transmission links help to conserve land. In the current case, that amounts to a saving of approx 244 square kilometres – about one-third the area of Bangalore.
Besides, the mega project will also feature technologies selected to minimize the footprint of the transmission stations.
This project encompasses design, engineering, supply, installation, testing, commissioning of complete UHVDC converter terminal stations as well as major equipment supplies including 800 kV converter transformers, converter valves, cooling systems and control and protection technology.
Raigarh-Pugalur is Hitachi ABB Power Grids’s 6th HVDC project in India and the second UHVDC installation, following the multi-terminal North-East Agra link.
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