Mantle8 Lands €31M to Fund Natural Hydrogen Exploration

The big picture: Mantle8, a Grenoble, France-based natural hydrogen exploration company, has raised €31 million in Series A funding. This round brings the company’s total funding to €37 million (US$44 million).

Why it matters:

• Decarbonization Driver: Hydrogen is a crucial component for future decarbonized industrial systems, with its role dependent on price and origin.
• Cost Efficiency: Mantle8’s technology aims to identify commercially viable natural hydrogen reserves, projecting production costs as low as €0.80/kg, significantly lowering clean hydrogen supply costs.
• Energy Sovereignty: This development can unlock a low-carbon, sovereign energy supply for Europe and other geographies, reducing reliance on external sources.

How it works:

• Proprietary Exploration: Mantle8 develops proprietary subsurface modeling and exploration technologies to reduce exploration risk and cost.
• HOREX® Platform: The company utilizes HOREX®, a multiphysics platform that generates 4D images of active underground hydrogen systems.
• Geological Trifecta: Its exploration framework identifies reservoirs where an active hydrogen-generating source, continuous replenishment, and a sufficiently sealed reservoir converge.

The catch: While Mantle8’s technology shows promise in identifying viable natural hydrogen reserves, the broader industry faces significant hurdles in scaling production. Proving sustained, commercially viable flow from these active hydrogen systems remains a critical next step, with long-term economic and environmental impacts still to be fully demonstrated against established energy sources.