EDF gave an update on the project in its latest results announcement on Thursday.

It said the impact of the Covid-19 crisis meant “the risk of delays in the commissioning schedule is high.”

EDF added: “The impacts of Covid-19 on the schedule and costs are currently being assessed (including impacts on supplier production conditions and associated delivery times) and increase the risk of postponement of planned commissioning dates.

“A comprehensive study to assess the need for an updated schedule and costs is currently underway and will be completed in the coming months.”