First power has been generated at Scotland's largest offshore wind farm.
This important step at the Seagreen development was announced yesterday by SSE Renewables and its partner TotalEnergies.
The £3billion project is located 16 miles off the coast of Angus.
Early on Monday, the first Vestas turbine of a total of 114 was commissioned and connected to the grid.
The 1,075MW development is expected to be fully operational in the first half of 2023 when it will be able to produce enough electricity to power 1.6million homes.
Seagreen will be the world's deepest fixed-bottom wind farm with its deepest foundation nearly 200ft below sea level.
Paul Cooley, director of global offshore wind for SSE Renewables said: "Seagreen has achieved a number of key milestones to date, but to see this turbine turning in the North Sea and to have reached first power safely is a fantastic achievement for everyone connected to the project.
Significant contribution
"Seagreen has already brought benefits to the local community, the UK supply chain and, once completed, Seagreen will make a significant contribution to Scotland and the UK's ambitious renewable-energy targets."
TotalEnergies entered into an agreement with SSE Renewables to acquire a 51% stake in the project in June 2020.
Vincent Stoquart, senior vice-president renewables at TotalEnergies, added: "We are delighted to announce the start of power generation from Seagreen, our first offshore wind farm in the UK North Sea.
"This marks a new step in the development of TotalEnergies' offshore activities capacity. This milestone will contribute directly to our objective of reaching 35GW of renewable electricity capacity worldwide by 2025."
SSE Renewables describes itself as the leading renewable energy developer, owner and operator in the UK and Ireland, and it has plans to expand in selected international markets to deliver the green energy the world needs.
It is building more offshore wind energy than any other company in the world.
SSE Renewables plans to double its installed renewable energy capacity to around 8GW by 2026 and treble capacity to over 13GW by 2031 - enough to be able to power around 20million homes.
In January TotalEnergies, along with Corio Generation and RIDG, secured leasing rights to develop the West of Orkney Wind Farm - a 2GW offshore project.