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.

Spirit Energy is maturing plans for the conversion of its Morecambe Bay gas hub into a net zero cluster of national scale and importance. To support those plans, Quintessa has conducted a preliminary ...

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 ...

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 employees have been involved in developing international guidance for safety assessments of radioactive waste disposals over many years, including both the International Atomic Energy Agency ...

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 ...

Experts from 15 Member States, including Richard Little from Quintessa, recently attended a technical meeting at the International Atomic Energy Agency (IAEA) in Vienna to examine suitable strategies ...

A major update of Quintessa’s free Graph Grabber tool, which allows users to extract data points from a graph image, has been released. The update includes the addition of automatic curve detection as ...

Renato Zagorscak was an invited speaker at the Climate Change in Civil Engineering Seminar Series organised by Brunel University London on 16ᵗʰ June 2022. The lectures covered the themes of analysing ...

Quintessa employees have co-authored a paper on a flexible risk assessment methodology for geoenergy technologies with Cardiff University's Geoenvironmental Research Centre. The transition to a ...