ScottishPower expects Hagshaw Hill to produce five times as much energy with half the turbines by early 2025

• Hornsea Four offshore windfarm given green light after five-month delay

One of Britain’s oldest onshore windfarms will soon be “repowered” so it can generate five times as much green electricity as it did in 1995 – with almost half as many turbines.

The owner of the Hagshaw Hill windfarm, ScottishPower, began dismantling 26 turbines on its site in rural South Lanarkshire on Wednesday.