Powersystems, a leading provider of high voltage electrical engineering solutions, is making significant strides with RJ Mcleod for their mutual client Field for their 50 MW Auchteraw Battery Energy Storage System (BESS) project near Fort Augustus, Scotland.
Auchteraw Project Background and Scope
As the Principal Contractor, Powersystems is leading the project’s design and execution with a focus on both the electrical balance of plant (EBoP) and civil works. Partnering with civil engineering specialists RJ McLeod, Powersystems is responsible for delivering a comprehensive package that includes major civil construction, such as road improvements, site access development, and the establishment of key infrastructure.
This collaboration ensures that the Auchteraw BESS is not only seamlessly integrated into the national grid but also built on a solid foundation that meets all regulatory and operational standards.
The combined expertise of Powersystems and RJ McLeod is instrumental in driving the project towards successful completion, reinforcing its critical role in supporting the UK’s renewable energy objectives.
The project, initiated with site mobilisation on 25 September 2023, has made substantial progress over the past few months. Set for completion, the primary scope involves the design and delivery of a complete civil and EBoP works package, including significant public road improvements, site access development, compound construction, and the installation of key electrical components such as transformers, switchgear, and backup power supplies.
Auchteraw BESS Conservation and Environment
From an environmental and conservation standpoint, the Auchteraw BESS project has made significant strides in minimising its impact on the local landscape. A key feature is the installation of a 4-metre high acoustic fence around the compound. This environmentally friendly barrier not only enhances noise control but also reduces the visual impact of the site, blending harmoniously with the natural surroundings. In addition, extensive landscaping efforts include the planting of mature trees, which align with planning consent requirements. These measures help preserve the local aesthetic and ensure that the project integrates seamlessly into the existing environment, benefiting both the community and the natural habitat.
Auchteraw Project Progress Mid-Year Progress May – July
Mark Chamberlain, Powersystems Senior Project Manager, provides an update on our progress: As spring transitioned into summer in Fort Augustus, the Auchteraw project achieved a significant milestone with the arrival of the first battery cubes in late May. On what can only be described as a typical Highland day—overcast with the occasional break of sunshine—the site buzzed with activity. After months of meticulous planning, the crane was ready, and the first delivery of battery cubes was on schedule. Each lorry carried seven cubes, the first of 316 to be delivered over a five-week period.
The groundwork for this phase was extensive. The concrete plinths had been meticulously prepared well in advance, with DC cable trays (support structures) and cables already installed. The precision with which the 1,640 chemical anchors (fastening systems) were drilled and installed paid off handsomely, as each battery cube slid seamlessly into place. This marked the beginning of a highly efficient and repeatable installation process, where each cube was securely anchored and perfectly aligned.
The following day brought a welcome spell of sunshine, though with it came the notorious Scottish midges. The team, undeterred, pressed on with the installation, refining their approach with each passing day. The client’s suggestions, informed by experience on previous projects, were promptly incorporated, demonstrating the collaborative spirit that has characterised this project. The quick thinking and adaptability of the team were also evident in how they managed the unexpected challenge of battery packaging waste. A waste management system was swiftly implemented, with large walk-in skips ordered and regularly emptied, ensuring the site remained tidy and efficient.
By early July, the progress was evident. The civil works for the Distribution Network Operator (DNO) building were completed, with landscaping and maintenance slabs in place. The BESS transformers and power conversion systems (PCSs) also arrived on-site.
The auxiliary transformer was installed on its plinth, and both 33 kV and LV cables were ready for final termination. Control panel glanding and terminations were progressing smoothly, reflecting the high standards of quality that Powersystems consistently delivers.
In the following weeks, the pace of progress remained impressive. SSE’s DNO equipment was installed, with final wiring work nearing completion. Temporary power was connected to the site, providing essential heating and lighting, though July in Fort Augustus rarely requires much heating!
By mid-July, all BESS equipment had been delivered and installed. The PCS DC cable glanding and termination were 95% complete, with work on the battery end around 80% finished. Cable containment, a critical aspect of the installation, was executed to the highest standards, with a quality finish that reflects the professionalism of the Powersystems team. The 33 kV cable terminations in all 14 BESS transformers were completed, and the jointing team moved on to the 33 kV switchroom, continuing with the circuit breakers, with very low frequency (VLF) testing scheduled for mid-August.
This period has been particularly intense, but the team has risen to the challenge. We expect to maintain this momentum over the next few weeks, with the goal of completing all Powersystems’ electrical installation work by the end of August.
This will position us well to notify the Client and SSE that we are ready for their scope of work to be completed.
The progress made from May to July highlights the exceptional teamwork and dedication that have driven this project forward. Despite facing external delays, the Powersystems team has demonstrated remarkable flexibility, overcoming challenges and delivering a high-quality product on schedule. The successful management of this complex project is a testament to the team’s expertise and commitment, ensuring that we meet our client’s expectations and contribute to the overall success of the Auchteraw BESS project.
Battery energy storage projects like the Auchteraw BESS are critical components in the UK’s transition to a net-zero carbon future. As the nation continues to expand its renewable energy capacity, the role of battery storage becomes increasingly vital. These systems not only store excess energy generated from renewable sources but also provide essential grid stability by responding to fluctuations in supply and demand.
The UK has seen a significant uptick in battery storage projects, driven by the need for greater flexibility and reliability in the energy system. With the government’s ambitious targets for renewable energy, battery storage systems are expected to play a key role in ensuring that the grid can accommodate the variable nature of wind and solar power.
Powersystems’ involvement in the Auchteraw BESS project underscores its expertise and commitment to supporting the UK’s renewable energy goals. The successful delivery of this project will contribute to the nation’s efforts to build a more resilient, sustainable energy infrastructure, paving the way for future innovations in energy storage and grid management.
The Auchteraw BESS project remains on schedule, thanks to the collaborative efforts of Powersystems, Field, and other stakeholders. The team’s ability to adapt to challenges and maintain progress is a testament to their expertise and dedication. As the project moves closer to completion, it will stand as a key milestone in the UK’s journey towards a greener, more secure energy future.
Notes to Editors:
Contact Information:
- This article is written by Jules Daly, Marketing and Communications Manager at Powersystems.
- Email jules.daly@powersystemsuk.com Telephone 01454 318000
- Photography Copyright please credit all images used to powersystemsuk.co.uk
Powersystems are powering the transition to a carbon free future
Powersystems is a leading high voltage specialist electrical engineering company with over 47 years of experience. Renowned for its expertise and reliability, Powersystems has become a trusted provider of design, installation, and commissioning services for electrical infrastructure and grid connections across the UK.
As the first Lloyds National Electricity Registration Scheme accredited Independent Connection Provider (ICP), Powersystems has been delivering contestable grid connections at voltages up to 132 kV for 27 years.
Since 2000, Powersystems has successfully connected over 6.1 gigawatts of renewable energy to the UK electricity grid. Our projects span many sectors from onshore and offshore wind, solar energy, tidal and hydroelectric power, electric vehicle infrastructure, as well as generation installations for short-term operating reserves (STOR), combined heat and power (CHP), grid stability initiatives such as rotating stabilisers, battery energy storage systems (BESS), and commercial industrial private wire networks.
In collaboration with partners, Powersystems has connected 30% of all onshore wind farms in the UK, contributing significantly to the nation’s renewable energy capacity to collectively work towards a sustainable future to help the UK achieve Net Zero by 2050.
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