Installation of renewable energy at our most energy intensive mine water treatment schemes is a critical part of us reducing our scope 2 emissions as we work towards our Net Zero by 2030 aspiration. Working with the Department for Energy Security and Net Zero and other government partners, we developed a procurement process that goes beyond the baseline requirements of the Modern Slavery Act 2015 and Procurement Policy Note 02/23, recognising the complex and evolving risks associated with global solar manufacturing.
Concerns about modern slavery in global solar supply chains first emerged across government in 2020, particularly around the mining of raw materials used to manufacture solar panels. In response, we paused progress on our solar programme to ensure that any future purchases could be made responsibly and with confidence. During this time, we worked closely with other public bodies, including the Government Property Agency, and contributed to shared guidance aimed at improving ethical procurement across government.
Using this learning, we developed a tailored approach to purchasing 10,000 solar panels, which we developed a tender for during 2024 and was awarded in January 2025. Our approach introduced stronger checks at every stage of the process. Suppliers were required to demonstrate how they identify and manage modern slavery risks, provide independent ethical audits, and use recognised tools that assess labour standards within their supply chains. Only suppliers able to meet these higher standards were invited to submit a full bid.
This level of scrutiny reduced the number of suppliers able to take part, highlighting the challenges of ethical procurement in a complex global market. It gave us greater confidence that all reasonable steps had been taken to reduce risk. Early engagement and clear expectations helped build a positive working relationship with the chosen supplier, who has demonstrated a shared commitment to ethical practices and continuous improvement.
The strict criteria set out in the procurement strategy have resulted in solar panels being manufactured and delivered to secure storage, ready for installation. We are already using these panels to increase efficiency at our existing sites, where some panels required replacement They will be used at our upcoming solar projects at our mine water treatment schemes and our headquarters, while also helping to shape a longer-term programme of renewable energy generation over the next five years.
Our forthcoming solar installations include the Lynemouth Mine Water Treatment Scheme, Silverdale Pumping Station, and our Mansfield Head Office. Across these sites, we will install more than 2,600 solar panels, generating approximately 807 MWh of electricity in the first year and delivering an estimated 800 tonnes of carbon (CO₂e) savings over a 25‑year period.
This work shows how it is possible to support the transition to renewable energy while taking a responsible and transparent approach to procurement. By strengthening our supply chain criteria and working closely with government partners, we are demonstrating our commitment to lowering emissions, while also supporting more ethical practices across the sector.