UK utility SSE took a £57 million ($67.8 million) hit buying high-priced power as a result of delays to a flagship offshore wind project off Scotland, caused in part by an accident that required repairs to thesemi-submersible crane vessel Saipem 7000 earlier this year.

The £3 billion Seagreen wind farm — which SSE is building in the North Sea with co-owner TotalEnergies — is set to become Scotland’s largest with 1.1 gigawatts of capacity when fully complete.

SSE said, when presenting its half-year results, that delays to the Seagreen project mean construction is now expected to be completed in summer 2023, a few months behind the earlier schedule.