TInnov Orléans 2025.
© BRGM
The challenge: 36 hours to invent the future of energy transition
TInnov is BRGM's annual open innovation event, where creativity and collaboration take centre stage.
Like a big hackathon, participants with different profiles brainstorm to come up with solutions to subsurface challenges on a specific theme each year.
This 8th edition had a new format, with a majority of student participants and 2 full days to co-construct innovative concepts alongside experts, researchers and manufacturers.
Key figures
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8.00thedition
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50.00students
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20.00scientific and innovation experts
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6.00groups and imagined concepts
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10.00invités et partenaires
TInnov Orléans 2025: thematic challenges.
© BRGM
Thematic immersion: meeting the new subsurface energy challenges
As the energy transition gathers pace, the subsurface is emerging as a promising terrain for sustainable, high-performance solutions.
TInnov is a genuine invitation to explore and co-design new approaches to reveal the full energy potential of the subsurface and optimise its emerging uses.
From native hydrogen to storage solutions, geothermal energy and the optimisation of energy systems, each challenge identified opens the way to decisive advances.
How can we make the hydrogen sector more efficient and resilient? How can the subsurface be transformed so that it plays a key energy storage and management role? What new synergies can be created between the surface and subsurface to meet the growing needs of urban and industrial areas?
Undergraduates, doctoral students, companies, researchers and engineers pooled their skills to form 6 groups ready to take on the major energy challenges of the subsurface.
Guided by experts, the participants came to grips with the context and the issues involved.
Go through the themed immersion booklets
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Booklet 1 : H2, hydrogen resources and energy efficiency(PDF, 5 MB)
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Booklet 2 : Urban energy needs and constraints(PDF, 4 MB)
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Booklet 3 : Extraction and use of native hydrogen(PDF, 4 MB)
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Booklet 4 : Underground energy storage(PDF, 6 MB)
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Booklet 5 : Multifunctionality and function coupling(PDF, 2 MB)
TInnov Orléans 2025: logos of project partners.
© IMT
From ideas to innovation
This was followed by brainstorming sessions, during which participants unleashed their creativity to generate as many ideas as possible.
Over 200 ideas were put forward
The experts helped the groups to prioritise and formalise all their ideas using co-design tools and methods.
Each team considered every stage of the innovation model: value proposition, business model, uses, risks and stakeholder involvement.
A prototyping area allowed ideas to be taken further through physical mock-ups or digital models.
Tinnov 2025 : retour en images
Condens’Hy, the winning concept in this edition, focuses on recovering and recycling air conditioning condensate to produce green hydrogen.
© BRGM
TInnovMetro, in second place, proposes to recover waste heat from the underground railway system and convert it into energy, thereby improving passenger comfort.
© BRGM
In third place, the Scoops Energy concept aims to store energy using compressed CO₂ in saline cavities, a solution that is three times more efficient than conventional systems.
© BRGM
The Seasmoz concept, an innovative system for producing H2 by recovering seawater.
© BRGM
The SolvH2 concept, a tool for assessing the feasibility of a native H2 extraction project
© BRGM
The Terrascopus concept, a decision-making tool for urban project planning that combines the resources and constraints of the territory.
© BRGM
6 concepts to keep an eye on
The groups finished the challenge by pitching in favour of their solution.
Each group had 7 minutes to convince all the participants and members of the jury of the relevance of their concept.
- Condens'Hy was the winning concept of this edition: betting on the recovery and treatment of air conditioning condensates to produce green hydrogen.
- Taking second place, the TInnovMetro concept proposed recycling the metro's waste heat into energy and to improve user comfort.
- In third place the Scoops Energy concept aimed to store energy as compressed CO2 in saline cavities, a solution 3x more efficient than conventional systems.
Not forgetting: Seasmoz, Solved H2 and Terrascopus.
A LinkedIn group for the latest Tinnov news
To keep up to date with all the latest news on TInnov, follow the concepts developed and meet potential partners, join us in the TInnov@BRGM Group on LinkedIn !
