Nine Quintessa consultants visited the Low-Level Waste Repository (LLWR) in May 2025, taking up an important opportunity to ...

PITZER is a PHREEQC version of the Yucca Mountain EQ3/6 thermodynamic database that includes 'Pitzer data' to parameterise the activity coefficients of aqueous species.

This video covers section 7.1.1 of the User Guide.

Richard Metcalfe attended the conference and gave a presentation on the importance of using multiple lines of evidence in the containment risk assessment (CRA) for underground storage of CO₂. Such an ...

Quintessa recently participated in the 7ᵗʰ workshop of the DECOVALEX project, hosted by the Korean Atomic Energy Research Institute (KAERI) in Busan, South Korea. The DECOVALEX project (DEvelopment of ...

The UK plans to safely dispose of its higher activity radioactive wastes deep underground in a geological disposal facility. Nuclear Waste Services (NWS) (formerly Radioactive Waste Management Limited ...

Quintessa is pleased to announce that it has made the shortlist of six companies selected by the Employee Ownership Association (EOA) for its employee-owned business of the year award. The award is ...

Richard Metcalfe recently participated as an Expert Panellist in a group discussion session entitled “Carbon Management from the Insurance Lens”, at the Climate Tech Conference 2024, organised by the ...

Quintessa celebrates the fact that our principal assets are talented individuals with leading edge expertise in their chosen fields and a passion for problem solving. Respect for each other and for ...

The Ownership Dividend report launched on the 27ᵗʰ June at the Institute of Directors presents the findings and recommendations of the independent Ownership Effect Inquiry chaired by Baroness Sharon ...

Jen and Tom will be working with us on a range of mathematical modelling, geoscience, decision support and software development projects over the next year. Quintessa has a long history of employing ...

Result Times are the times at which AMBER saves the Amounts in each compartment and the times at which values are plotted or written to a report. This video covers section 8.1 of the User Guide.