Local, Scalable & Dispatchable

Baseload Electricity & District Heating

No Fracturing

AGS (Advanced Geothermal Systems) eliminate the risk of induced seismicity and socio-political acceptance posed by EGS (Enhanced Geothermal Systems) because no fracking is involved.


EAPOSYS simply collects the heat stored in rocks by circulating a working fluid in series of closed-loop wellbore. Our incremental system architecture can be tailored to match local energy demand.

Endless Use

Flow rates are intentionnally kept at minimal level to avoid heat resource depletion. EAPOSYS is dimensioned to supply heat and electricity for more than a century, at least!


Environmental and social sustainability indicators are comprehensively evaluated and incorporated at the very inception of EAPOSYS proposal.

To mitigate climate change, most developed countries have adopted a ‘much-commented’ energy transition, aiming at implementing the Kyoto Protocol and Paris Agreement, electrifying the world but losing the battle of reducing greenhouse gases (GHG) emissions. In 2020, new renewable still accounted for less than 5% of the total share of global energy with average GHG emission rate of 1000 tons per second.

Mainstream energy policies define energy security as the uninterrupted availability of energy sources at an affordable price. Concepts of rational use of energy are preferentially marginalized, and renewable energy often assimilated to sustainability without justification.


Unique Closed-Loop Technology

AGS are deep geothermal closed loop systems. EAPOSYS uniqueness lies in its PROPRIETARY SERVICE WELL: a central well to incrementally drill and deploy pairs of multilaterals at heat depth. Multilaterals are connected to the injection and production wells to close the heat collection loops. EAPOSYS can start operation as soon as the first loop is completed enabling early revenues while the system is being scaled.


Conventional geothermal resources (highly permeable aquifer at volcanic-like temperature) are limited to geographic niches. Hence the hot dry basement rocks represent the largest potential and must be targeted for local power generation and district heating.

Current technologies for hot dry rock systems involve hydraulic fracturing to form and propagate fractures with the aim of creating an artificial reservoir to circulate hot fluids at depth, posing the risk of induced seismicity.

Due to the extremely low permeability of artificial reservoirs, combined to uncontrolled flow paths, such enhanced geothermal systems (EGS) have not proven at date the capability of creating a 5 MWel capacity plant.

Geothermal is the greatest source of renewable energy; and yet, it is the least exploited. Why are we waiting?

99% of the Earth’s mass is hotter than 1000°C, only the three first kilometers are cooler than 100°C. EAPOSYS intends to find and provide the means to develop a deep geothermal system, capable of optimized heat extraction for local electricity and heat generation over a long period of time (+50 years).