A Swiss-engineered solution for deep geothermal energy 

EAPOSYS wasn’t built alone. It was built through a chain of people arriving at the right moment, starting with my father, Lucien Vouillamoz, an entrepreneur and nuclear engineer, and Patrick Scherrer, an astute operator in business with a wealth of experience in economics. They were the two earliest connections behind the company. Together they helped us set up the business almost overnight.

Proof that a vision is worth the fight, is a patent that draws in believers.

From there, one connection led to the next. Alain Jaccard, an intellectual property specialist, had worked alongside Lucien for over a decade, developing patent families across several early-stage companies. That relationship brought the speed and trust required to turn our idea into a first provisional US patent in record time, securing the closed-loop geothermal system, built to operate and expand incrementally.

With the patent in progress, we were able to transition from bootstrapped to our first capital raise, giving us the initial resources to uncover potential showstoppers and sharpen our core value proposition. Drawing on Patrick and Lucien’s hard-earned networks, we united our earliest believers around a shared vision. That early capital allowed us to rigorously evaluate our concept from every angle, launching key workstreams spanning deep rock mechanics, Energy Return on Energy Invested (ERoEI), thermodynamics, brand, and renewable energy market opportunities.

“When your goal is to rewrite energy standards, partnering with leading domain specialists is the only way to achieve an honest, unvarnished, and expert-backed validation of a vision built for industrial-scale impact.”
A purpose-led mission demands a truth that cannot be shaken.

Then, in the middle of it all, COVID hit, giving me an unexpected gift: time to dig deep into the philosophy behind the business we were building. I explored the deeper intersections of the energy transition, philosophy, and the economic systems that govern our everyday lives… I interrogated how market structures shape energy infrastructure, the possible decentralised disruption brought by renewables, and how smaller, agile players are challenging established capitalist mindsets to forge a new paradigm. A time where my thinking behind energy as a common good, Energy Return on Energy Invested, and the broader role of social sciences in the energy transition really began to flourish.

Transition updates the past. Transformation rewrites it.
That mindset shaped our response when the Swiss Federal Office of Energy opened SWEET, its flagship funding programme for the energy transition. Leading a multidisciplinary team across economics, geology, pedagogy, sociology, and systemic transition, I guided the authoring of PhilTheGap, a 200-page strategic framework created alongside Sophie Barathieu, Martin Clerc, Samuel Heinzen, Dr. Sophie Perdrix, Patrick Scherrer, Sophie Varone, and Jonathan Vouillamoz. Together, we made the case that overcoming the energy crisis requires solving for human behaviour just as much as subsurface thermodynamics. Because this is far more than a transition, it is a transformation requiring us to fundamentally adapt our collective behaviour as a society. It was this thinking that carried us forward. Our name was decided.

“EA (Earth) + PO (Power) + SYS (Systems) = EAPOSYS. More than just a name, it became our commitment: uniting subsurface engineering with socio-economic reality to transform the energy landscape from the ground up.”

Naming EAPOSYS marked the completion of our foundational chapter. With the groundwork laid, the stage was set to move from feasibility to real-world deployment.