SF₆ Gas Recovery, Recycling and Distribution Service

National Grid is seeking a comprehensive sulphur hexafluoride (SF₆) management service provider to handle the complete lifecycle of SF₆ gas under National Grid ownership. The successful supplier will collect recovered SF₆ from National Grid sites across England and Wales, test and classify the gas, process it into reusable Technical Grade SF₆, maintain secure storage and inventory management, and distribute certified gas to National Grid locations. The supplier must also safely dispose of contaminated or non-recoverable SF₆ through licensed facilities and maintain full digital traceability of all consignments from recovery through final disposal. Key responsibilities include: collecting SF₆ from multiple sites; testing gas against BS EN IEC 60480 standards; processing treatable gas for reuse; managing storage capacity and stockpile arrangements; providing certified Technical Grade SF₆ delivery including urgent requests; safely handling disposal activities with complete audit trails; and implementing a secure digital tracking system with real-time inventory visibility. The service must support National Grid's environmental objectives of maximising SF₆ reuse, minimising emissions, preventing atmospheric releases, and reducing disposal volumes. The supplier will assume management of approximately 13.26 tonnes of existing Category A SF₆ stockpile at contract commencement. All resources including labour, facilities, equipment, transportation, testing and reporting must be provided by the supplier. All SF₆ remains National Grid property throughout the contract.