White & Case secures trial victory in UK power cables class action, eliminating over $350 million in damages

Global law firm White & Case LLP has successfully represented Nexans S.A and Nexans France S.A.S in a trial before the UK Competition Appeal Tribunal. Today's trial victory eliminates over $350 million of damages from a UK class action brought in the Competition Appeal Tribunal by Ms Spottiswoode on behalf of consumers of electricity in the UK.

Ms Spottiswoode brought the "opt out" collective proceedings in 2022. In May and June 2025, White & Case tried the case before the Competition Appeal Tribunal relating to the "pass-on" of alleged damages to British consumers from offshore windfarm projects such as London Array – which at the time was the world's largest windfarm.

On 30 October 2025, the Competition Appeal Tribunal issued its judgment dismissing Ms Spottiswoode's claim on this pass-on issue in its entirety. In a unanimous decision, the Tribunal held that Ms Spottiswoode had failed to prove that the level of subsidies awarded by the UK Government for offshore windfarms in 2010 would have been different absent the behaviour on which Ms Spottiswoode's claim is predicated.

This is a complete victory on the issue tried. As such, a significant part of the claim has been defeated. The remainder of the class action is subject to further proceedings.

The White & Case team which represented Nexans included partners Mark Gidley (Washington DC), Marc Israel (London), partner of counsel Mark Powell (Brussels), and associates William Obree and Isabella Conceicao Silva (both London).

White & Case instructed Tony Singla KC (Brick Court Chambers) and Paul Luckhurst (Blackstone Chambers). 

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