Skip to content
RockyH₂

A team of researchers and entrepreneurs.

RockyH₂ brings together a unique combination of scientific excellence, field experience and entrepreneurial vision.

20+ years of expertise in fluid-rock interactions and hydrothermal reactions — transforming fundamental geoscience into industrial solutions.

A multidisciplinary team combining academic excellence and industrial experience.

Éric Gaucher

Éric Gaucher

Chairman

Find it

Identifying where natural hydrogen is and locating the right geological systems.

  • 29 years of experience (academic + industry), including 10 years at TotalEnergies
  • Task Leader “Natural Hydrogen” – IEA
  • Discoverer of the H₂ field in the Pyrenees (4 permits)
Samuel Barbier

Samuel Barbier

CEO

Optimize it

Reproducing natural phenomena in the lab and optimizing reactions.

  • PhD in Geosciences
  • Thesis on optimization of H₂ production in ultramafic reservoirs
  • Rare expertise in hydrothermal reactors
  • Participant in a Deep Tech entrepreneurship program
Muriel Andreani

Muriel Andreani

Scientific Advisor

Understand it

Analyzing water–rock interactions and the mechanisms of hydrogen production.

  • Professor, Lyon 1 University / ENS de Lyon
  • Member of LGL-TPE (CNRS)
  • Junior member of IUF (2016)
  • Publications in Nature Communications, Earth & Environment, Science Advances

16,000+

scientific citations in total

Google Scholar (July 2026)

Business development.

Christophe Hecker

Christophe Hecker

  • CEO of NaturalHy, a financial advisory firm specializing in fundraising in the field of natural hydrogen
  • Spokesperson at earth₂, a European initiative aiming to promote natural hydrogen as a key component of the energy transition and sovereignty in Europe
  • Advisor for Calderion, the first European investment fund dedicated to natural hydrogen
  • Strong connections in the mining sector. Author of articles in specialized mining magazines

Scientist board.

Pr. Isabelle Daniel

Pr. Isabelle Daniel

Professor of Earth Sciences

Université Lyon 1

Hervé Cardon

Hervé Cardon

Research Engineer

Laboratoire de Géologie de Lyon

Guy Raffin

Guy Raffin

Research Engineer

CNRS

Marguerite Godard

Marguerite Godard

Research Director

CNRS

Partnerships and collaborations.

  • Université Lyon 1
  • LGL-TPE
  • Lavoisier H₂ Geoconsult
  • ENS de Lyon
  • CNRS
  • BRGM
  • La French Tech
  • Pulsalys

We don’t just study the Earth. We work with it, to build a better future.

Could your mining asset produce natural hydrogen?

Let’s evaluate your potential together.

Talk to our geoscience team