Published 26 December 2011
ABB has received an order worth more than $900m from Power Grid Corporation of India to deliver an ultrahigh-voltage direct current (UHVDC) transmission system.
The UHVDC link will supply hydro power from northeast India to the populous region of Agra in central India.
The power link, operating at 800kV, will have a converter capacity of 8,000MW.
When operating at full capacity, it will supply electricity to 90 million people based on current figures for average national consumption.
The system will be the world's first multi-terminal ultrahigh-voltage link and will have three converter stations, ABB said.
Two sending stations will convert power from alternating current (AC) to DC for transmission over a single power line.
Furthermore, it will deliver electricity to a third, receiving station in Agra where it will be converted back into AC for distribution to end users.
The purpose of the ultrahigh-voltage transmission is to minimize losses and improve efficiency and the deployment of a multi-terminal solution brings considerable cost reductions.
ABB will execute the transmission project together with Indian government-owned power company, Bharat Heavy Electricals Limited (BHEL), that will deliver the rest of the project worth more than $1.1bn in total.
The project will be executed on a turnkey basis including design, system engineering, supply, installation and commissioning and is scheduled to commence operations in 2015.
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