Phase 1 of this project selected two Polychlorinated Biphenyl (PCB) sampling tool design concepts for further development.
Phase 2 focuses on developing one of these concepts into a fully functioning and field-tested prototype, whilst also delivering a proposal for a third phase focused on business as usual (BAU) deployment.
The Challenge
All UK distribution network operators (DNOs) are required to replace or test oil -filled assets made before 1987 for PCBs by 31 December 2025.
PCBs were used in transformers before their ban in 1987, with an estimated 88,000 now requiring testing or replacement (Energy Networks Association PCB Working Group).
Pole-mounted transformers (PMTs) make up most of these assets, presenting a challenge for oil sampling because of their height and the safety zones around live conductors. Typically, PMTs must be de-energised and removed for testing; a costly, time-consuming and disruptive process.
DNOs want to be able to test PMTs for PCBs while they remain in situ and energised. This approach would eliminate the need for de-energisation and replacement, saving on costs and resources.
The Innovator
Founded in 2012, Steer Energy is a technical consultancy specialising in innovative solutions for the energy and utilities sectors.
With a small core team, Steer Energy collaborates with a diverse community of established and emerging specialists. They excel at understanding challenges and delivering elegant, technically optimised, user-friendly products and services.
Steer Energy is committed to providing effective solutions across various sectors, ensuring their offerings are accessible and beneficial to all involved.
What’s Next?
The project will deliver four fully functional prototype assemblies of the selected solution in phase 2.
Steer will also develop a comprehensive product specification document to guide the engineering design in stage 2. This will include product engineering drawings, operational guides, test procedures and reports.