Scottish Power Invests £1.5 Billion to Double Whitelee Wind Farm's Clean Energy Output

The repowering plan includes building a new substation and expands the Whitelee site to about 83 square kilometres, spanning East Renfrewshire, East Ayrshire and South Lanarkshire.
New turbines are expected to exceed 240 metres in blade-tip height, far taller than the current ones which reach around 140 metres.
Construction is expected to inject about £330 million into the Scottish economy as part of the project.
A full planning application is expected by the end of next year, with the upgrade fully operational by 2035.
Industry context includes debt-relief measures and concerns about rising household energy debt, with discussions of securitising debt and UK energy debt projections (potentially around £7 billion).
ScottishPower Renewables has announced a £1.5 billion plan to nearly double the capacity of Whitelee, the UK's largest onshore wind farm, according to Herald Scotland. The project will replace about a quarter of the site's 214 turbines with 124 taller units, pushing total output from roughly 0.54 GW to around 1 GW — enough to power 650,000 homes.
The overhaul spans three phases and targets full operation by 2035, according to Head Topics. ScottishPower says 99% of old turbine materials will be recycled, and the visitor centre and public walking paths will stay open throughout construction.
The new turbines will reach over 240 metres at blade-tip height. That is nearly 100 metres taller than the current turbines, which top out at around 140 metres, according to Herald Scotland. Fewer but bigger machines allow the site to generate far more electricity from the same stretch of land.
The expanded site will cover about 83 square kilometres across East Renfrewshire, East Ayrshire and South Lanarkshire, according to Impartial Reporter. A new substation will also be built to handle the extra power flowing off the moors.
ScottishPower says construction will inject about £330 million into the Scottish economy, according to Head Topics. The project is expected to support hundreds of jobs during the build phase, spread across multiple years and three separate phases.
A full planning application is expected by the end of next year. If approved, work could begin soon after, with the upgraded farm fully operational by 2035, according to Ludlow Advertiser.
Whitelee is not alone. Across Britain, ageing wind farms are reaching the end of their lives. Without upgrades, their capacity simply goes offline. ScottishPower's leadership framed this project as a way to stop clean energy disappearing from the grid, according to Head Topics.
The project is part of a broader push by owner Iberdrola to boost Britain's renewable capacity and energy security. Industry pressure is also building around rising household energy debt, with UK energy debt projected to reach around £7 billion if left unchecked.
Whitelee is popular with hikers and cyclists. ScottishPower has confirmed the visitor centre and all public paths will remain open during construction, according to Impartial Reporter. The company is keen to show the project works for local communities, not just energy targets.
The site already attracts tens of thousands of visitors each year. Keeping it open is seen as key to maintaining public support for what is a major, decade-long building project on the doorstep of Glasgow.
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