Key facts
- Naturally occurring underground hydrogen reserves could power Earth for 170,000 years.
- Green hydrogen is seen as a solution for decarbonizing hard-to-abate sectors.
- Green hydrogen can be combusted cleanly, producing only water vapor.
- Green hydrogen currently represents less than 1% of U.S. hydrogen production.
- Producing green hydrogen is expensive and often inefficient.
Green hydrogen is frequently discussed as a key component in the transition away from fossil fuels, particularly for industries that are difficult to electrify. Its ability to burn cleanly, producing only water, makes it an attractive alternative. However, significant economic and efficiency hurdles have prevented its widespread adoption.