OTECSA Invests in Advanced Phast Consequence Modelling Software from DNV

OTECSA Consulting has invested in advanced Phast Consequence Modelling to deliver more accurate fire, explosion and toxic dispersion assessments. This upgrade strengthens our technical risk capabilities and enhances the support we provide across high-hazard industries.

At OTECSA Consulting Ltd., we’re committed to continuously enhancing the technical quality of our process safety services. We’re excited to announce our latest investment in DNV’s Phast consequence modelling software. This is a significant step forward in strengthening our capabilities across complex risk assessments and high-hazard studies. This investment marks a major step forward in our ability to deliver precise and reliable Phast Consequence Modelling for complex industrial scenarios.

Strengthening Our Consequence Modelling Capabilities

Phast is one of the industry’s most widely recognised and trusted tools for modelling fires, explosions and toxic gas dispersion. While several consequence modelling software packages exist, Phast stands out for its user-friendly interface, accuracy and alignment with international good practice.

This investment supports the continued development of our team and aligns with our growth into more complex and detailed technical safety challenges. Phast enables us to deliver more robust assessments, supported by transparent modelling outputs trusted across sectors. This includes energy, chemical processing, manufacturing and COMAH-regulated industries.

How Phast Consequence Modelling Enhances Our Services

Phast is particularly valuable for:

  • Occupied Buildings Risk Assessments (OBRA)
  • COMAH Consequence Modelling
  • Toxic dispersion studies
  • Fire and explosion modelling
  • Bespoke scenario analysis for complex sites

By adopting Phast across the business, we now have the flexibility to perform consequence modelling at a higher technical level, validating hand calculations, improving accuracy and providing clearer justification for risk-based decision-making.

A Message from Our Managing Director

Managing Director Owen Llanwarne shared why this investment was an important next step for the company:

“As we embark on another year of OTECSA providing practical and pragmatic process safety support to our clients, we listened to feedback from our team and clients and took the decision to invest in Phast to enhance our services.

Although consequence modelling has become a standard product for our team, using more advanced software will only help to ensure we help keep our clients safe, with more accurate consequence modelling studies.”

Supporting Our Clients with More Accurate, Data-Driven Insights

Whether assessing new projects, supporting COMAH submissions or evaluating worst-case scenarios for safety-critical decisions, our enhanced consequence modelling capability allows us to:

  • Provide more precise modelling outputs
  • Evaluate a broader range of credible major accident scenarios
  • Improve transparency and confidence in risk assessments
  • Support robust safety justification and regulatory engagement

This development strengthens our full suite of process safety services and ensures we continue delivering practical, evidence-based guidance to our clients.

Want to See How OTECSA and Phast Can Support Your Site?

If you’re interested in learning more—or would like a demonstration of how DNV Phast can be applied to your operations—our team would be happy to help.

Contact us