Ansaldo and ABB win $76m tender to boost Italian grid

Ansaldo Energia and ABB have won an order from Italian transmission system operator Terna worth €70m ($76m).

The scope of supply for Ansaldo Energia includes the design, supply, commissioning and maintenance of three synchronous condensers, each rated 250 MVAR, for installation in Central and Southern Italy, plus options for two synchronous condensers to be exercised no later than 36 months from the order date.

The installation of the three units covered by firm orders will be completed in 2022.

Webcast Recording: Deploying synchronous condensers to boost grid quality and resilience

Synchronous condensers are special electric generator applications that, when connected to the Terna transmission grid, exchange reactive energy with it and increase the short-circuit power. They also contribute inertia to the power grid, increasing stability. This is particularly important in a grid with many generation plants that use renewable sources, which are intrinsically discontinuous and characterised by low or no inertia.

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The latest supplies are for synchronous condensers equipped with the “flywheel system”, designed and implemented using innovative solutions developed by Ansaldo Energia, which increases the overall inertia of the rotating system while minimising mechanical losses because it is contained inside a vacuum chamber.

For this tender, Ansaldo Energia to partner with ABB. ABB will supply, install and commission the system that connects the synchronous compensators to the grid, including the protection and control systems and the monitoring and diagnostic solutions.

The contract also entails the provision of maintenance and assistance for both plants for twenty years.

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