Powersystems, a specialist in high voltage electrical engineering, is pleased to provide an update on the progress of the electrical works contract for the Limekiln Wind Farm. This project, developed in collaboration with RJ McLeod, marks an important step towards site energisation in September 2024. The Limekiln Wind Farm, developed on behalf of Boralex, consists of 24 wind turbines with a total capacity of 108 MW.
Project Overview
The scope of our work involves the design, supply, installation, testing, and commissioning of the complete electrical infrastructure, which is compliant with SSEN and National Grid standards. This work supports the UK’s goal of achieving net-zero carbon emissions by 2045, contributing to Scotland’s renewable energy ambitions.
Technical Details
- Wind Farm Details: The project features 24 Vestas V136 4.5 MW turbines connected to the 132 kV network.
- High Voltage System: We installed a new 33 kV indoor substation housing an 8-panel Schneider WS switchboard and a 132 kV outdoor substation compound, consisting of an overhead busbar network, 90/120 MVA 132/33 kV grid transformer, 2500 A circuit breaker, disconnectors, and surge arrestors. Powersystems designed the protection schemes and managed the integration of metering equipment supplied by SSEN at the Point of Common Connection.
- 33 kV Cable Network: We installed a comprehensive network of 33 kV cables connecting the substation to each wind turbine, including trefoil cable arrangements and termination onto switchgear.
- Switchgear and Control Systems: We provided and commissioned an 8-panel 33 kV switchboard with protective relays and auxiliary equipment, along with advanced monitoring and control systems for seamless operation.
- Auxiliary Systems and Safety: Our work includes the installation of LV distribution systems, fire and intruder alarms, and an auxiliary power supply (via auxiliary earthing transformer, standby diesel generator or grid supply) with an auto-changeover panel for operational resilience. We also implemented emergency trip mechanisms and a comprehensive CCTV system to enhance site security.
- Earthing and Compliance: Robust earthing systems were installed to protect against electrical faults and lightning strikes, ensuring compliance with relevant standards. We conducted site-wide earth resistance testing to verify system integrity.
Project Management and Design
A dedicated project manager was assigned to oversee the project from inception to completion, supported by an on-site electrical works supervisor to ensure quality and safety. Our team executed the electrical balance of plant design in line with specifications from SSEN, National Grid, and the wind turbine supplier.
Commissioning and Training
Following installation, Powersystems will provide on-site training and comprehensive operation and maintenance manuals. Our engineers will conduct Grid Code compliance testing to ensure the wind farm meets all regulatory requirements.
Commitment to a Greener Future
The Limekiln Wind Farm is a vital addition to the UK’s renewable energy landscape. Powersystems, alongside RJ McLeod, is proud to contribute to this project, which embodies engineering excellence and a commitment to sustainable progress. We are pleased to have RJ McLeod on board once again, as their strong local connections allow our investment to support the Highland economy.
Project Timeline and Future Steps
The Limekiln Wind Farm is expected to be commissioned by the end of 2024, with construction proceeding as planned. Turbine deliveries have begun, marking a significant milestone in the project. This development represents a crucial step forward for Boralex and the generation of renewable energy for nearly 100,000 homes.
Boralex and Renewable Energy Goals
Boralex is dedicated to increasing the use of zero-carbon electricity through wind and solar PV projects. By securing a Power Purchase Agreement (PPA) with Statkraft for a 3-year contract, Boralex demonstrates its commitment to sustainable energy solutions that support modern lifestyles while preserving the environment.
Supporting Scotland’s Renewable Energy Goals
Scotland is committed to reaching net-zero carbon emissions by 2045, as outlined in the Climate Change Act 2019. The Limekiln Wind Farm is an important part of this effort, supporting the Scottish Government’s ambition to install 20 GW of onshore wind power by 2030.
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.
Our commitment to excellence is reflected in our integrated management systems, which are ISO accredited, and our rigorous approach to health and safety under the ‘Priority No.1’ brand, ensuring best practices across the industry.
Powersystems UK Ltd. is an employee-owned business that values the well-being of its employees, fostering an environment where innovation is encouraged, and everyone is empowered to share ideas and contribute to the company’s success.
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