Paul Harraka

Clean technology investment and philanthropy

Geologic hydrogen exploration and production technology

Airline

Hydrogen produced from natural gas without carbon capture, which is the most common method currently.

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

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

United States

Albania

Mali

Natural hydrogen extraction and utilization for electricity generation in the village of Bourakébougou, Mali. Operating since 2012 with nearly pure hydrogen.

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

An unpublished research project estimating global subterranean hydrogen reserves at 5 trillion tonnes.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