General Electric (GE) has appointed Kier to deliver onshore converter station in Redcar in the UK’s north east for RWE’s Sofia Offshore Wind Farm.

The around £3bn wind farm is located on Dogger Bank in the central North Sea.

The onshore converter station will be based on a site next to the Wilton Complex, near the village of Lazenby.

According to Kier, the project area and compound is 34,000m2.

It will be responsible for civil engineering and building construction works for the valve halls, control building and ancillary buildings including the installation of all associated building services, heating, cooling and building management systems.

Sofia Offshore Wind Farm will feature 100 turbines, an offshore converter station besides hundreds of kilometres of both inter-array and export cables, and onshore electrical infrastructure.

Kier’s works will commence onsite early this year, with the onshore converter station work expected to complete by mid-2025.

Kier Infrastructure group managing director Mark Pengelly said: “We have an established track record of delivery of civil works for power station and energy from waste plants and Sofia is an exciting project for us to be involved in.

“As we all continue to find ways to be more sustainable, we expect that energy will be a key growth area for Kier over the coming years. This project will also bring significant economic benefits to the north east, as we will deliver it collaboratively with our trusted local supply chain partners.

“Throughout the project, we are committed to delivering for our communities in line with our social purpose to tackle inequality by giving individuals and communities the tools and opportunities to create brighter futures. We do this in a number of ways, including school engagements, creating work opportunities and upskilling local people.”

Once operational, Sofia is expected to produce green energy sufficient to supply to around 1.2 million average UK homes with their annual electricity requirements.

The energy produced by Sofia’s turbines will save more than 2.5 million tonnes of carbon emissions annually.


Sofia Offshore Wind Farm will feature 100 turbines. Credit: Thomas G. from Pixabay