Consult | Design | Build
AMS Nuclear is an engineering company specialising in Electrical, Control & Instrumentation systems, Environmental Sampling systems and Ageing & Obsolescence solutions to the nuclear industry. With safety being a consideration in everything that we do; our pragmatic, ‘right first time’ approach minimises risk, reduces costs and saves time for the organisations that we work with.
AMS Nuclear delivers bespoke EC&I systems across the full project lifecycle, from initial feasibility studies through to installation and commissioning. Following a proven V-model approach, we provide either complete turnkey solutions or discrete elements working collaboratively with clients and partners. Our vendor-independent position ensures we specify the best technical and commercial solution for your application, whether that’s process instrumentation, PLCs, pneumatic systems, relay logic, or alarm management systems for nuclear licensed sites.
AMS Nuclear delivers integrated Electrical, Control & Instrumentation (EC&I) systems from concept to commissioning, backed by a proven track record across the entire nuclear project lifecycle. For over 25 years we have provided the full EC&I solution – consulting, designing, qualifying, building and testing safety-critical systems for new builds, operational reactors, decommissioning projects and defence. Our vendor-independent approach ensures each solution is technically optimal, practical, and delivered right-first-time. Every project is executed by our Suitably Qualified and Experienced Personnel (SQEP) team, following rigorous quality processes and a robust nuclear safety culture so that safety remains the top priority. We consistently deliver on time and on budget, as evidenced by hundreds of successful projects to date.
Our consultancy services are led by SQEP experts adept at navigating the UK nuclear sector’s regulatory landscape. We provide detailed design substantiation, technical input to safety cases, equipment qualification programs and stringent standards-compliance support to ensure every solution meets its regulatory requirements. With over a decade of framework experience on EDF Energy’s reactor fleet and with more recent involvement at Hinkley Point C new build, we understand how to satisfy nuclear industry procedures and quality standards. We foster a well-developed nuclear safety culture with security-cleared personnel, reflecting a proactive, accountable approach to quality and safety. Clients trust us to deliver clear, dependable guidance that keeps their projects on track in highly regulated environments.
AMS Nuclear designs and manufactures environmental sampling equipment compliant with Environment Agency guidelines and industry best practice. Our sampling systems utilise Best Available Techniques for capturing particulates and radionuclides including Carbon-14, Sulphur-35, and Tritium across portable, mobile, and static applications. From self-contained portable units to complete isokinetic stack monitoring systems, we provide standard and bespoke solutions backed by full engineering services from survey through commissioning, ensuring optimum performance for highly regulated nuclear clients.
Our Total Oxidation Units feature AMS Nuclear-designed glass reaction tubes achieving oxidation efficiency below 10ppm when heated above 900°C, with combustion temperatures reaching 1200°C. Rigorously tested and approved by Magnox plc and British Energy, our mobile samplers are available in three variants – Single Stream for stack air sampling, Dual Stream for supplemented oxygen applications like AGR coolant gas monitoring, and High Pressure with onboard regulation. Customisations include thermal mass flow measurement, alarm integration, and datalogging capabilities.
Static sampling systems incorporate isokinetic probes sized for specific stack velocities, sample extraction cubicles with duty/standby pump auto-changeover, and latest thermal mass flow technology. Our modular approach eliminates unnecessary complexity, simplifying maintenance and fault-finding. Portable samplers in aluminium carry cases feature integral datalogging of volumetric flow rate, pressure, temperature, and run time. We maintain stock of consumable parts including furnaces, reaction tubes, and thermocouples to support ongoing operations.
As nuclear power stations extend beyond their original design life, obsolescence becomes a critical challenge. With thousands of obsolete items across the UK nuclear fleet, aging components threaten plant reliability and availability. When 1970s-era control systems fail or manufacturers cease production, AMS Nuclear provides pragmatic engineering solutions grounded in BS EN 62402:2007 methodology. We understand that every obsolescence challenge requires a cost-effective approach – avoiding expensive full system replacements where simpler solutions exist.
Our approach prioritises cost efficiency through rigorous Item Equivalency Evaluation (IEE) and Fit Form & Function comparisons, enabling lower-cost solutions before considering total system replacements. We’ve successfully delivered everything from reverse-engineered PCBs to complete modern equivalent replacement systems. Working with Appropriate Rigour, we apply client-specific guidelines and OPEX analysis to ensure safety-critical systems meet exacting standards.
Our SQEP engineers bring deep technical insight into ageing and obsolescence management across safety-critical EC&I systems. We understand the challenges of sustaining legacy plant equipment, from obsolete control logic to discontinued instrumentation, and apply structured methodologies to extend asset life safely and efficiently. Combining detailed system knowledge with robust engineering processes, we evaluate, substantiate, and modernise components in line with nuclear standards and client requirements. Supported by established OEM relationships and a disciplined supply chain, we deliver dependable, qualified solutions that maintain plant reliability and compliance without unnecessary redesign or requalification effort.
