Hydrogen is not a silver bullet but dismissing it based on outdated assumptions or narrow comparisons can distort the bigger picture. With rising geopolitical interest, geological breakthroughs, and major industry investments, it’s time we separated science from scepticism.

Here are some persistent misconceptions about hydrogen and what the data and research actually say:

1. “Hydrogen is too dangerous, it’s highly explosive.”

Truth: Hydrogen is flammable, but so are methane and gasoline. What matters is risk management. Hydrogen has a wide flammability range but ignites only in specific concentrations with an ignition source. Its buoyancy (14x lighter than air) makes it disperse rapidly, reducing accumulation risk. Its diffusivity, low radiant heat, and non-toxic nature make it arguably safer than hydrocarbons in open environments.

2. “Hydrogen isn’t a primary energy source.”

Truth: While grey, blue, and green hydrogen are manufactured, geological (natural) hydrogen is an emerging primary energy resource. Produced via serpentinisation, radiolysis, degassing, and iron oxidation in ultramafic rocks, natural hydrogen has been found in various places.

3. “Green hydrogen is too expensive to scale.”

Truth: Prices are falling rapidly. Green hydrogen already costs $3–6/kg in many regions and is forecast to fall below $1.5/kg by 2030 in areas with abundant renewables. Innovations in electrolyser efficiency, economies of scale, and low-cost renewable energy (solar PV at <$0.02/kWh) are game changers. Plus, the true cost of fossil fuels includes externalities like air pollution, climate damage, and stranded asset risks.

4. “Hydrogen is inefficient compared to batteries.”

Truth: Batteries win for short-term, high-efficiency storage. But hydrogen excels where batteries fail:

• Long-duration energy storage (LDES) across seasons
• High-temperature industrial heat (>800°C)
• Heavy-duty transport (trucks, ships, aviation)
• Grid stabilization via power-to-gas-to-power (P2G2P) systems

Efficiency isn’t the only metric. Supply chain resilience, energy density, and system integration matter too.

5. “Hydrogen is only useful if it’s green.”

Truth: Hydrogen’s carbon footprint depends on its production pathway, not color. Blue hydrogen (from natural gas + CCS) can be low-emission if upstream methane leaks are minimised and carbon capture rates exceed 90%. Meanwhile, gold hydrogen (microbial or geologic hydrogen) offers near-zero emissions without requiring renewables or carbon capture.

6. “Hydrogen infrastructure is decades away.”

Truth: The groundwork is already underway.

• Over 1,000 hydrogen projects have been announced globally.
• EU’s Hydrogen Backbone plans 40,000+ km of dedicated pipelines by 2040.
• Countries like Japan, South Korea, Germany, Australia, and India are rolling out H2 corridors, hubs, and refueling networks. The parallels to early solar and EV adoption are striking and we’re accelerating faster this time.
• Existing natural gas infrastructure can be partially repurposed for hydrogen blending and eventually pure hydrogen with material upgrades.
• Hydrogen shipping (via ammonia or LOHCs) is advancing with pilot deliveries already completed.

7. “Hydrogen will always rely on fossil fuels.”

Truth: That’s exactly why green hydrogen matters. Currently, over 95% of hydrogen is made via steam methane reforming (SMR). But this represents an opportunity, not a dead-end. Replacing grey hydrogen with green hydrogen in existing industries (like ammonia and methanol production) is game changing. And with electrolytic retrofits, green hydrogen can displace fossil hydrogen across sectors without CO₂ emissions.

Hydrogen’s future won’t be defined by old assumptions but by current innovation and global momentum. As technology advances and infrastructure scales up, hydrogen is stepping into its rightful place in the energy transition.