Imagery © UK Atomic Energy Authority
About RH3OVA
RH3OVA is a newly established engineering services company supporting the development of advanced energy technologies, with a particular focus on tritium systems and fusion applications.
The company commercialises specialist engineering and consultancy services delivered through a robust industrial and research ecosystem, enabling clients to address complex technical, safety and regulatory challenges.
RH3OVA is a joint venture between UKAEA and Eni. It offers the combined IP and capabilities of each organisation but operates as an independent, client-focused delivery team.
UK Atomic Energy Authority (UKAEA) is the UK’s national organisation responsible for fusion energy research and development, working to advance the science and engineering needed to deliver commercial fusion power. It operates major research facilities such as the Culham Centre for Fusion Energy and collaborates internationally to accelerate the transition to clean, sustainable fusion energy. UKAEA has over 30 years of experience working with tritium as fusion fuel.
Eni is a global energy company headquartered in Italy, engaged in the exploration, production, and supply of oil, gas, and low-carbon energy solutions. Eni has over 70 years of experience delivering industrial plants at scale. The company is investing heavily in energy transition technologies, including renewables, biofuels, and innovative solutions such as fusion, to support a more sustainable energy future.
Eni is a global energy company headquartered in Italy, engaged in the exploration, production, and supply of oil, gas, and low-carbon energy solutions. Eni has over 70 years of experience delivering industrial plants at scale. The company is investing heavily in energy transition technologies, including renewables, biofuels, and innovative solutions such as fusion, to support a more sustainable energy future.
Delivering specialist engineering expertise to enable the safe, scalable and efficient development of tritium and fusion technologies.
Team & expertise
The management team
Giorgio Ricci Maccarini
CEO & Board Chair
Energy professional with international experience, specialized in the commercial valorisation of frontier technologies and the industrialization of the energy transition.
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Iryna Bennett
CTO
Chartered chemical engineer with 19 years’ experience across operations, design, and technology development, specialising in driving efficient R&D from proof of concept to market-ready solutions.
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Sophie Davies
CCO
Tritium fuel cycle specialist combining hands on operational experience with commercial insight to translate customer needs into practical, technically robust and commercially viable solutions.
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Donald Cockburn
CFO
Senior governance and compliance leader with 20+ years’ international experience in global tax, payroll, mobility and M&A integration, driving compliance and operational efficiency.
LinkedIn profileBoard of directors
Stephen Wheeler
Board member
Senior technical and organisational leader with cross-sectoral experience in advanced manufacturing and process technologies, product development and establishing new business operations.
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Francesca Ferrazza
Board member
Head of Magnetic Fusion Initiatives at Eni. A physicist with 30+ years in R&D, she leads strategic projects in nuclear fusion, innovation, and renewable energy sources.
LinkedIn profileWhat we do
RH3OVA provides end-to-end engineering and consultancy services supporting the development of complex tritium and fusion-related systems. From early concept definition and feasibility studies to detailed engineering, system integration and operational support, the company works alongside industrial players, research organisations and technology developers to address challenges across the entire project lifecycle.
Our services
RH3OVA assessments, studies and concept designs are underpinned by real-life DT fusion fuel cycle operating experience and leverage expertise in delivery of large engineering projects.
Examples of potential scope:
- Fuel cycle concept design for a range of plasma scenarios (pulsed or continuous)
- Assessment of the impact of whole-plant decisions on fuel cycle technical risk, including the selection of seeded gases, cooling media and other process utilities, plasma impurity tolerance
- Development and implementation of strategies to mitigate technical risk, including experimental campaigns and targeted development campaigns to increase confidence in scalability and lifecycle performance
- Estimation of fuel cycle tritium inventory, parasitic load and significant material costs
Contacts & Info
Please use the contact details below to get in touch with us. We aim to respond to enquiries as quickly as possible.
Imagery © UK Atomic Energy Authority
Tritium systems
Tritium plays a critical role in the development of fusion energy technologies, presenting unique technical, safety and regulatory challenges. RH3OVA delivers specialist engineering activities related to tritium systems, including processing, handling, storage, recycling and associated safety aspects. Building on engineering expertise developed within Eni UK and UKAEA, the company supports the development and deployment of tritium systems that are safe, compliant and scalable.