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01 - OPERATIONAL
Camilla Farm BESS
Client - Eelpower & NextEnergy Capital
Location - Fife, Scotland
Connection - 33kV Distribution
Capacity - 50MW / 50MWh
Technology - BYD Cube
Energisation - December 2023
Camilla is a 50MW battery energy storage facility, connected at 33kV to the SPEN distribution network, delivered in Fife Scotland on behalf of Eelpower & Next Energy Capital. The asset supports regional grid flexibility and renewable energy integration within the distribution network.
Energy-io was engaged during the latter stages of the project to assume full electrical responsibility, refine the existing design and deliver the remaining balance of plant works under an accelerated programme. By consolidating engineering, procurement, installation and grid interface coordination within a single structured framework, the 33kV connection and commissioning activities were brought back into alignment, enabling successful energisation in December 2023.
02 - OPERATIONAL
Hagshaw Hill Wind Farm
Client - ScottishPower Renewables
Location - South Lanarkshire, Scotland
Connection - 33kV Transmission Connection
Capacity - 78MW
Technology - 14x Nordex N149 Turbines
Energisation - April 2025
Hagshaw Hill is a 78MW onshore wind development connected at 33kV and delivered on behalf of Scottish Power Renewables. The project comprises 14 Nordex turbines and associated high-voltage infrastructure supporting renewable generation within the regional network.
Energy-io provided integrated electrical balance of plant delivery, including 33kV infrastructure, substation integration and grid compliance coordination. Working in direct engineering alignment with the turbine manufacturer and network stakeholders , we ensured seamless integration between turbine systems, balance of plant assets and the wider grid through the successful operation.
03 - COMPLETED
Hagshaw Hill 33kV Substation Commissioning Support
Client - SP Energy Networks
Infrastructure - 2x Indoor 33kV Substations
Scope - Commissioning, Protection & Witness Testing
Energy-io was engaged by SP Energy Networks to provide commissioning and testing support across two indoor 33kV substations forming part of a live grid connection programme. The scope included 33kV switchgear panels, protection schemes, battery systems, interface signalling and communications integration.
Working within an accelerated timeframe, Energy-io undertook all commssioning and witness testing activities to align the substations with connection milestones. Leveraging extensive experience within SPEN network environments, we ensured coordinated integration between grid infrastructure and developer assets, supporting successful energisation.
04 - OPERATIONAL
Kilgallioch Wind Farm Extension
Client - ScottishPower Renewables
Location - Dumfries & Galloway, Scotland
Connection - 33kV (Existing Switchboard Extension)
Capacity - 50MW Extension (239MW Existing Site)
Technology - 9x Nordex N149 Turbines
Energisation - December 2025
Kilgallioch Wind Farm Extension is a 50MW expansion comprising nine Nordex N149 turbines, integrated into the existing 239MW operational wind farm in south-west Scotland. The extension required connection to the live 33kV infrastructure and coordination within an operational generation environment.
Energy-io delivered the electrical balance of plant works, including new 33kV circuits from the existing switchboard, control room modifications and hybrid control integration between the Nordex turbines and existing Gamesa fleet. Working within a live operational site, we planned and executed multiple controlled outages, undertook all 33kV SAP activities and coordinated commissioning to ensure seamless integration with minimal distruption to ongoing generation.
05 - UNDER CONSTRUCTION
Arecleoch Wind Farm Extension
Client - ScottishPower Renewables
Location - South Ayrshire, Scotland
Connection - 33kV Transmission Connected
Capacity - 73MW
Technology - 13x Nordex N149 Turbines
Energisation - Late 2026
Arecleoch Wind Fram Extension is a new 13-turbine development currently under construction for Scottish Power Renewables, scheduled for energisation in late 2026. The project will feature Nordex N149 turbines and connect via a new 132/33kV AIS substation constructed by SP Energy Networks.
Energy-io is delivering the electrical balance of plant works across the site, including 33kV infrastructure, substation integration and grid compliance coordination. As with previous SPR projects, our scope consolidates engineering, installation and commissioning leadership to ensure seamless integration between turbine systems, balance of plant assets and the transmission-connected network.
06 - UNDER CONSTRUCTION
Hams Hall BESS
Client - BW ESS
Location - Birmingham, England
Connection - 400kV
Technology - 248 Sungrow Power Titan 2.0
Energisation - Q3 2026
Hams Hall is a 400kV connected battery energy storage facility designed to provide large scale grid stability and flexibility within the transmission network. Upon completion, it is expected to be among the largest BESS assets in Europe.
Energy-io is delivering integrated electrical balance of plant infrastructure and grid interface coordination across the project. Through early technical collaboration and direct engineering interface with the equipment manufacturer, we act as system integrator between the OEM and the grid, aligning compliance and commissioning through to energisation.
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Get in touch to discuss how we can help you unlock the full potential of renewable energy, and to chat to us about Camilla, or any of the projects in our pipeline.