Taiwan-based semiconductor group TSMC signed what’s billed as the world’s largest renewable power deal by agreeing to buy the entire output from a 920MW Orsted offshore wind farm.

The deal will see TSMC offtake full production from the Greater Changhua 2b & 4 project, due to enter service in 2025/26, under a 20-year fixed-price contract, said a statement from the Danish offshore wind giant.

The contract – by far the largest yet seen in offshore wind – also eclipses previous mega-deals seen in the emerging market for renewable power purchase agreements, such as the 2017 PPA signed for output from a 650MW onshore wind project in Sweden by aluminium group Norsk Hydro.