A flexible, future-ready battery energy storage solution (BESS)

Delivered in partnership with ICP (Independent Connections Provider) Green Frog Connect on behalf of Centrica

EHV

Farburn Terrace

Aberdeen, UK

The challenge

Farburn Terrace marked a significant milestone as Leep’s first 33kV connected battery energy storage system (BESS), delivered in partnership with ICP (Independent Connections Provider) Green Frog Connect on behalf of Centrica.

The project’s primary objective was to reinforce the local network for SSE Networks while aligning with net zero requirements. This meant increasing capacity without relying on traditional fossil fuel generation such as gas or coal.

In addition, the system needed to operate within a Bi-Lateral Electrical Generation Agreement (BEGA) framework, requiring a complex discharge profile across multiple daily peaks, including morning and early evening demand, alongside a later evening surge driven by public sector shift changes, providing a reliable 2.5 discharge cycles per day.

Compounding this technical complexity were external pressures, including evolving political leadership and legislative changes throughout the project lifecycle, creating a moving target for compliance and approvals.

33kV

Battery energy storage system (BESS)

2.5

Discharge cycles per day

The solution

Leep delivered a flexible, future-ready battery energy storage solution capable of meeting both network reinforcement needs and dynamic demand profiles.

By integrating advanced system components and ensuring compatibility with evolving regulatory requirements, the project provided a renewable-led alternative to traditional reinforcement methods.

Close collaboration with Green Frog Connect ensured the delivery of a technically robust solution, incorporating key elements to enable effective monitoring, control, and performance optimisation.

Why Leep?

Leep’s approach combined technical expertise, regulatory agility, and strong partnership working:

  • Regulatory navigation: Our in-house legal team worked continuously with local specialists and government bodies to manage evolving legislative requirements, ensuring the project maintained momentum through to final sign-off.

  • Adaptive design: As technology advanced during the project, we continuously reviewed and refined the solution to incorporate the most efficient and effective components available.

  • Collaborative delivery: Acting as a trusted partner, we provided technical assurance and strategic guidance to stakeholders, helping to resolve issues quickly and maintain programme confidence.

  • Engineering problem-solving: Working closely with SSEN it was highlighted that there was the need for upgraded 33kV circuit breakers at the Grid Substation, uncovering wider network anomalies. We spearheaded the specification, design, and implementation to ensure system integrity.

  • Partnership strength: Our collaboration with Green Frog Connect combined expertise and industry credibility, enabling us to address complex technical challenges and align stakeholders around clear priorities.

Results

Despite significant technical, regulatory, and operational challenges, the Farburn Terrace project was successfully delivered to energisation on time and on budget.

The project has:

  • Strengthened the local electricity network using a renewable-led solution

  • Enabled flexible, demand-responsive energy discharge aligned with real-world usage patterns

  • Delivered critical infrastructure improvements beyond the immediate site

  • Built valuable capability and experience within Leep for future BESS projects

Crucially, the project has positioned Leep to confidently deliver similar large-scale, complex energy solutions, combining practical delivery experience with proven technical, legal and regulatory expertise.

“Farburn Terrace is a great example of what can be achieved through true partnership. Working closely with Leep, we were able to navigate complex technical and regulatory challenges to deliver a robust, future-ready energy solution for Centrica. Their collaborative approach and technical expertise were key to keeping the project on track and achieving a successful outcome.”

Richard Shearer, Managing Director, Green Frog Connect

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