
FRED – Fire, Release, Explosion, and Dispersion consequence modelling tool
Developed by Shell and available exclusively through Gexcon
Based on 40 years of scientific research and model development, it generates fast and reliable predictions with validation credentials unrivalled in the market.

Developed by engineers who understand the need for accurate results and actionable outputs
As an owner-operator tool, FRED software has been developed by engineers who understand first-hand the need for accurate results and actionable outputs. It answers the questions that operators need to design, develop and maintain safe operations.
The software is underpinned by an advanced thermodynamic model, which enables extended multi-component fuel representation to be used in nearly all models.
Previously only available for use on Shell projects, it is known and trusted throughout the world and can be universally applied to facilities across a wide range of industries.
User-friendly interface
Modernised user interface developed in collaboration with users for improved usability.
Quick comparison of scenarios
Easily compare sensitivities and run variants.
Supports critical decisions
Apply results to live operations based on real-world conditions or planned changes.
Reliable hazard assessments
Assess hazards with greater clarity and accuracy using validated models.
Flexible mapping options
Display results on plant layouts, satellite images, or street maps.
Continuous development
Continuous development in new models including LNG, hydrogen, ammonia, and carbon dioxide.
Demo video
See how FRED enables batch creation and updates of multiple scenarios.
“The ever-evolving breadth and depth in features offered by FRED ensure the engineered solutions for our Clients meet the highest standards of Process Safety.”
Process Safety Engineering Team
Petrokon Utama Sdn Bhd Brunei

Uses and applications
- Preparation and update of safety cases
- Justification for new design and operation
- Facility layout and equipment optimisation
- Pre-incident and emergency response planning
- Domino effects/escalation management studies
- Accident investigation
- Quantitative risk analysis (QRA) – with results directly integrated into Shell’s QRA tool Shepherd
Insights

Now live: FRED 2025 v2
The latest version introduces several important improvements to better support users working with hydrogen mixtures, long pipeline networks, and custom fluids.