What happened

Construction Enquirer reported this week that TSL has taken pole position in September's contracts league table, compiled by construction intelligence group Barbour ABI, on the back of a £280m job at Agratas's battery gigafactory in Bridgwater, Somerset. The Buckinghamshire-based specialist shed and data centre builder has stepped in after Sir Robert McAlpine, which had led construction on the site, parted ways with the client. McAlpine said it had "successfully completed the first phase" of the facility before the two sides "mutually agreed to part ways" following what it described as extensive discussions.

The £4bn plant is the UK's first large-scale gigafactory for Agratas, the global battery manufacturing arm of Tata, and is central to the government's push to build a domestic battery supply chain for electric vehicles. TSL's win covers a further phase of the build as the factory moves from shell-and-core into the next stage of fit-out.

Why it matters

Contractor exits from flagship jobs this size are rare and worth reading carefully. McAlpine's departure after completing its phase, rather than being removed for performance reasons, points to the scale and specialism gigafactory builds demand: they combine industrial shed construction, heavy power infrastructure and increasingly tight commissioning schedules that do not always suit the same contractor end to end. That a mid-sized specialist like TSL can step in and immediately top a national league table shows how the gigafactory boom is reshaping who the biggest jobs in Britain go to. It is no longer only the usual tier-one names chasing this scale of work.

For the wider battery and energy storage sector, this is also a sign that the pipeline behind Agratas, and rivals building similar plants, is deep enough to support more than one main contractor working concurrently on a single site as phases change hands.

What it means for careers and hiring

Gigafactory and battery plant construction is becoming its own specialism, distinct from standard industrial shed work, and TSL's win signals it is hiring to match. Site managers and engineers with heavy power, process plant or automotive manufacturing fit-out experience should treat Bridgwater, and the wider Somerset battery cluster, as a live market rather than a one-off project. Commercial teams who have handled contractor novation or phase handover on a live industrial site, where a new main contractor takes over mid-build without stopping production targets, are in particular demand right now: that is exactly the exercise TSL and Agratas are about to run together. Anyone building a CV around decarbonisation or the energy transition should note that this work is landing well outside London and the South East, with the regional pull it brings for site-based roles.