Shallow (10s to 200 m) geological disposal facilities for particular nuclear wastes have been developed in a number of countries (e.g. SFR in Sweden) and are under active consideration elsewhere.

Our growing scientific software development portfolio includes: AMBER - flexible compartmental modelling software product TESLA - software product supporting complex decisions with uncertain evidence ...

AMBER allows users to build and visualise 3D dynamic compartment models of contaminants in environmental, biological and engineered systems. The software is flexible, transparent, fully probabilistic ...

Quintessa has developed a PHREEQC version of the Yucca Mountain EQ3/6 thermodynamic database that includes 'Pitzer data'to parameterise the activity coefficients of aqueous species. The work was ...

A range of Quintessa software and documentation is available for download below, including AMBER, GraphGrabber, Portfolio Picker, QPAC, TESLA, and LATIN.

Since 2004, Quintessa has carried out research and development in support of EDF Energy (and formerly British Energy) for the continued safe operation of Advanced Gas Cooled Reactors (AGRs). A ...

The following applied research publications reflect our role as an interface between academia and science-based organisations. Please contact the authors for further information. Zagorscak R, Metcalfe ...

Quintessa has been employee owned from its inception 25 years ago. Employee ownership benefits our employees and clients in numerous ways, including long-term stability of the company, a culture of ...

The capability to sufficiently characterise, understand and appropriately represent the behaviour of radionuclides in environmental systems is critical to understanding the risks posed. This, in turn, ...

The session’s theme was risk and vulnerability assessment related to the geological storage of CO 2. An underlying principle of any PA framework is that it should be adaptable to meet the different ...

Quintessa developed a generic Features, Events and Processes (FEP) database for the geological storage of carbon dioxide, and has also been developing a generic FEP database for the decommissioning of ...

Quintessa’s capabilities relate primarily to risk assessment of the storage integrity, building on work on this topic that Quintessa carried out for the Health and Safety Executive (HSE RR606) and ...