31 March 2026
Corporate News

What Lies Beneath: The Giant Foundations Underpinning Port Talbot’s Green Steel Future

Aerial view of piling

Port Talbot steelworks has reached a pivotal moment in its £1.25 billion transformation. After months of clearing, digging and preparing the vast site, construction has finally started below the surface — and the scale of what’s happening out of sight is extraordinary.

Senior Quality Manager Kath Sanders of Sir Robert McAlpine says last week marked a decisive shift from preparation to true construction.

“This is the first time the thing is actually starting to be built,” said Kath..

Two piling rigs are now working continuously on the future site of the fume extraction plant, with the Consteel conveyor and electric arc furnace zones stretching out behind them. These rigs are driving long, precast concrete piles — some reaching 25 metres deep — to anchor the enormous structures that will soon rise above ground.

“It’s like hammering in a nail, but with four tonne weights and 20 metre concrete sections,” Kath explained.

Around 1,000 piles will be installed in this area alone. Despite the heavy machinery and dramatic noise, the precision required is remarkable. Each pile must be positioned with an accuracy of 75 millimetres. Advanced digital systems inside the rigs track every blow, giving engineers real time insight into ground conditions and ensuring each pile reaches the correct depth and resistance.

Different piling methods will be used across the wider Project Invictus site, including continuous flight auger (CFA) piles in heavier load zones such as the Consteel conveyor. Over the coming months, the landscape will change rapidly as the grid of piles gives way to major slabs and, eventually, the structures themselves.

“The construction really has started now,” Kath added.

The foundations of Port Talbot’s new green steel era aren’t just being laid — they’re being driven deep into the earth.

WATCH Kath Sanders from SRM describe the piling works that has started at Port Talbot Steelworks HERE

 

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About Tata Steel UK

  • The Tata Steel Group has been named one of the most ethical companies in the world, and is among the top producing global steel companies with an annual crude steel capacity of 34 million tonnes.
  • Tata Steel in the UK has the ambition to produce net-zero steel by 2045 at the latest, and to have reduced 30% of its CO2 emissions by 2030.
  • In October 2024, Tata Steel ceased ironmaking at its Port Talbot site and temporarily paused steelmaking pending the construction of a 3.2Mtpa Electric Arc Furnace, due to be commissioned late in 2027 / early 2028. For that period, the business will import slab and hot rolled coil to support manufacturing and distribution operations at sites across Wales, England and Northern Ireland as well as Norway, Sweden, France, Germany and UAE. It also benefits from a network of sales offices around the world.
  • Throughout 2024 Tata Steel UK has been undergoing a restructuring that will reduce the size of its workforce to around 5000 direct employees, supplying high-quality steel products to demanding markets, including construction and infrastructure, automotive, packaging and engineering.
  • Tata Steel Group is one of the world's most geographically-diversified steel producers, with operations and a commercial presence across the world.
  • The group recorded a consolidated turnover of around US$26 billion in the financial year ending March 31, 2025.
  • Tata Steel has long played a key role in enabling the UK economy to become more circular. Its products are highly durable, reusable and recyclable, It applies a sustainability assessment tool during its new product development process to measure the sustainability credentials of its new offerings.
  • More information about the crucial role that Tata Steel UK already plays in driving the UK to a more circular economy, and its plans to play an even greater role, can be found in its recently-published Sustainability Report covering 2023-2025.

     
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