ScottishPower has signed a £1.3bn deal to buy 95 wind turbines for an offshore wind farm off the coast of Norfolk.
The deal, with Siemens Gamesa, will build enough capacity to supply about 1.3 million homes when the wind is blowing.
Prime Minister Rishi Sunak said: “I am delighted that ScottishPower and [parent company] Iberdrola are investing in the UK – creating thousands of jobs and crucially helping millions of families keep their homes warm with cheaper, renewable energy.