ENERGY, SAFETY AND RISK CONSULTANTS(UK) LIMITED

Their core work

Energy, Safety and Risk Consultants (ESR) is a UK-based engineering consultancy specializing in nuclear safety analysis and risk assessment for advanced reactor designs. They provide safety demonstration support using high-performance computational methods, including Monte Carlo simulations and multiphysics modelling for Generation IV and small modular reactor (SMR) concepts. Their work bridges experimental validation with advanced numerical methods, helping reactor designers and regulators assess safety margins for next-generation nuclear technologies. The company operates under the Amec/Wood Group umbrella, bringing industrial-scale engineering consultancy capabilities to EU nuclear research programmes.

What they specialise in

How they've shifted over time

ESR's H2020 trajectory shows a clear shift within nuclear safety. Their early work (2017) centred on sodium fast reactor safety and experimental validation through ESFR-SMART, alongside Monte Carlo safety methods in McSAFE. By 2020, their focus moved toward small modular reactors and more sophisticated multiscale/multiphysics safety analysis in McSAFER, reflecting the broader European pivot toward SMR deployment readiness. The progression from proof-of-concept Monte Carlo methods to realistic safety evaluation tools shows deepening computational capability applied to increasingly policy-relevant reactor types.

ESR is moving toward safety analysis for deployable small modular reactors, positioning them for the growing European SMR licensing and regulatory support market.

How they like to work

ESR operates exclusively as a participant, contributing specialist safety expertise rather than leading consortia. With 28 unique partners across just 3 projects, they work in large research consortia typical of EU nuclear safety programmes, averaging 9-10 partners per project. This pattern suggests they are a trusted technical contributor that major nuclear research networks call on when safety analysis and risk assessment capabilities are needed.

ESR has collaborated with 28 distinct partners across 13 countries through their nuclear safety projects, indicating strong integration into the European nuclear research community. Their network spans a wide geographic range, consistent with the internationally coordinated nature of Generation IV reactor safety research.

What sets them apart

ESR brings industrial engineering consultancy scale to academic-heavy nuclear safety research consortia. While many partners in these projects are national labs or universities, ESR provides the practical safety and risk assessment perspective of a commercial engineering firm with real-world regulatory experience. For consortium builders, they fill the critical gap between theoretical reactor physics research and the applied safety cases needed for actual licensing and deployment.

Highlights from their portfolio

• McSAFER
  Largest funding (EUR 252,900) and most recent project, extending Monte Carlo safety methods to small modular reactors — a rapidly growing policy priority in Europe.
• ESFR-SMART
  Five-year programme (2017-2022) on European Sodium Fast Reactor safety, connecting ESR to the core Generation IV research community.
• McSAFE
  Proof-of-concept project for high-performance Monte Carlo safety demonstration that directly spawned the follow-up McSAFER, showing ESR's sustained role in this research line.