Member News: 14 Lower-carbon Foundations Completed at Clashindarroch II Wind Farm in Aberdeenshire

October 5, 2026
Member News: 14 Lower-carbon Foundations Completed at Clashindarroch II Wind Farm in Aberdeenshire

Lower-carbon foundations completed at Clashindarroch II wind farm

  • All 14 turbine foundations completed in an 11-week programme 
  • 1,190 tonnes of recycled reinforcing steel used — equivalent to the weight of 826 cars6
  • 11,256m³ of lower-carbon concrete used, cutting embodied carbon by an estimated 20–30% per cubic metre5
  • On-site concrete production reduced long-distance deliveries, traffic movements and associated emissions4

Vattenfall has completed all 14 turbine foundations at its 63MW Clashindarroch II Wind Farm in Aberdeenshire, a major construction milestone delivered in 11 weeks.

The foundations used 11,256m³ of lower-carbon concrete and approximately 1,190 tonnes of recycled reinforcing steel — equivalent to the weight of 826 cars6. Reusing steel reduces demand for newly produced material.

The concrete contains a cement blend with at least 25% pulverised fuel ash, replacing part of the conventional Portland cement. As Portland cement is the most carbon-intensive component, the blend is expected to reduce embodied carbon by around 20–30% per cubic metre5. Concrete was produced at a temporary on-site batching facility, reducing long-distance deliveries and the associated fuel use, traffic movements and emissions4.

The first foundation was poured on 30 June 2026. Around 85 tonnes of reinforcing steel was used in each foundation. Construction will now move to the next phase, with first power expected in summer 2027.

Once operational, the 14-turbine wind farm is expected to have an installed capacity of 63MW3 and generate enough renewable electricity to power the equivalent of around 61,500 UK homes annually1.

Stuart Matthews, Vattenfall’s Senior Project Manager for Clashindarroch II Wind Farm, says,

“Completing all 14 foundations is an important construction milestone for Clashindarroch II — and how we delivered it matters. 

“Lower-carbon concrete, recycled reinforcing steel and on-site concrete production have helped us reduce embodied carbon and transport emissions during this phase. 

“With the foundations complete, we can move into the next phase and continue towards first power in summer 2027.” 

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AREG has played an important role in the growth of Scotland’s renewable energy sector, engaging the supply chain and developing the European Offshore Wind Deployment Centre. However, we are only at the very beginning of the transition that AREG was established to both lead and support so there are still opportunities for companies to get into the constantly evolving renewables supply chain. We look forward to continuing our work together as renewables builds on its place as Scotland’s main source of power, and as we seek to deliver real change in the crucial areas of heat and transport.

Scottish Renewables
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Aberdeen & Grampian Chamber of Commerce has worked closely with AREG since its formation. The recent progress in the developments of offshore wind projects by Equinor and Vattenfall are as a result of the work of the group over many years. The north-east is known as the oil and gas capital of Europe. At the Chamber, we believe the region must evolve its position to being recognised as the energy capital. Whilst hydrocarbons will continue to be essential in driving our economy for years to come, the generation of renewable resources will play an increasingly important role in providing cost-effective power, innovative development and economic growth.

Aberdeen & Grampian Chamber of Commerce
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The enthusiasm and dedication of the early group that would become AREG was fundamental in us choosing to launch All-Energy in Aberdeen. The first tiny show was held in 2001, and AREG’s Chairman at the time, Jeremy Cresswell, played such an active role that I often describe him in terms such as All-Energy’s ‘midwife’. All-Energy is now the UK’s largest renewable and low carbon energy exhibition and conference in terms of number of attendees, space booked, and number of exhibiting companies. As AREG became firmly established, their presence and support for the event grew spectacularly over the years. We thank them most sincerely for their invaluable input.

All-Energy
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Vattenfall has forged a strong working relationship with AREG through the development of the European Offshore Wind Deployment Centre. AREG has worked tirelessly on behalf of the North East and it can take enormous credit for the growth of sustainable energy in the region and the path it has cleared for the region to capture further investment.

Vattenfall
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Aberdeen City and Shire is emerging as a key location for renewables by successfully transferring its world-class oil and gas expertise into the sector and AREG has done much to advance this through a broad range of initiatives. It has acted as a catalyst in driving further investment in the local economy by engaging with companies, Government, public bodies and existing projects and we have been pleased to support their efforts. Scottish Enterprise will continue to engage with AREG as we increase Scotland’s use of renewable energy.

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