London, December 8, 2025 – New analysis from think tank Ember shows the colossal shift in the power sector over the last 25 years: since the first offshore wind farm opened at Blyth in 2000 offshore wind has grown to become the second largest power source in the country, supplying nearly a fifth (17%) of electricity generation in Britain, and employing around 40,000 people.
“The engineering and innovation in British offshore wind over the last 25 years should be a real point of pride,” said Ember analyst Frankie Mayo. “With seabeds and wind speeds second-to-none for this kind of technology, Britain has truly led the world in showing its potential.”
World leading innovation
When Blyth wind farm opened in December 2000, it was world leading: described as the first ‘truly offshore’ wind farm in the world, it was the first to feel the full force of the open sea. Capable of powering around 3,000 homes, the 4 MW wind farm entered into a power system dominated by 25,000 MW of coal power and 23,000 MW of gas power.