Paul Harraka

Geologic hydrogen exploration and production technology

Clean technology investment and philanthropy

Scientific Society

Hydrogen occurring naturally in the Earth's crust and mantle, produced through inorganic chemical reactions rather than from fossil fuels. It is extracted directly from the ground without requiring energy-intensive production processes.

Hydrogen produced from renewable electricity sources, considered a critical component for hydrogen's long-term credibility as a clean fuel.

Hydrogen derived from natural gas with carbon capture technology, debated as a potential stepping stone or greenwashing.

Nebraska

Colorado

An unpublished research project estimating global subterranean hydrogen reserves at 5 trillion tonnes. Led by Geoffrey Ellis.

Exploratory drilling project by Natural Hydrogen Energy to assess natural hydrogen extraction viability. Expected to transition to commercial production within a couple of years.

A natural hydrogen extraction initiative at the Bulqize chrome mine in northeastern Albania, transitioning the site from traditional chrome mining to hydrogen energy production.