Each blade on Vestas's V236 offshore turbine is 115.5 metres long, longer than a football pitch, and one machine sweeps 43,742 square metres of sky to produce up to 80 gigawatt-hours a year; more than 12 gigawatts of them are already on order

Each blade on Vestas's V236 offshore turbine is 115.5 metres long, longer than a football pitch, and one machine sweeps 43,742 square metres of sky to produce up to 80 gigawatt-hours a year; more than 12 gigawatts of them are already on order

As offshore wind turbines grow exponentially larger, a single machine can now power thousands of homes—and the industry's order books suggest the world is ready to bet big on them.