Hydrogen Is Finally Getting Serious — Here Is Where It Actually Makes Sense

Hydrogen energy hype has been replaced by pragmatic deployment in specific applications. Here is where hydrogen genuinely makes sense and where battery electric has already won.

Hydrogen energy has been described as perpetually '20 years away' from commercial relevance since the 1970s. The 2026 assessment is more nuanced: hydrogen is commercially relevant now in specific applications whose characteristics make it genuinely superior to battery alternatives, while in other applications where hydrogen's inherent inefficiencies are most severe, battery electric technology has definitively won.

The applications where hydrogen makes genuine technical and economic sense: industrial high-heat processes (steel, cement, glass, chemical manufacturing) that require temperatures above 1,000°C that electric resistance heating cannot efficiently achieve; long-haul aviation, where the weight of batteries required for jet-range electric flight is prohibitive and hydrogen's energy density advantage is decisive; shipping for long voyages, where the energy density of hydrogen or ammonia-based fuels significantly exceeds lithium-ion battery density at comparable weight; and backup power for critical infrastructure that requires multi-day reliability beyond what battery storage can economically provide.

The applications where hydrogen has lost to battery electric: passenger vehicles, where the round-trip efficiency advantage of batteries (90+ percent) over hydrogen fuel cells (30-40 percent, given the energy losses in hydrogen production, compression, and fuel cell conversion) translates directly into lower running costs; short-haul aviation (battery electric is advancing rapidly for routes under 500km); and grid-scale electricity storage in most geographies, where battery storage economics have fallen below hydrogen storage economics for storage durations under approximately 12 hours.

Green hydrogen — produced by electrolysing water using renewable electricity rather than from natural gas — is the only version with a clean energy credential. Current green hydrogen costs of approximately €4-7 per kilogram are falling as electrolyser manufacturing scales. The EU's Hydrogen Strategy targets €2 per kilogram by 2030 — the cost level at which green hydrogen becomes competitive with fossil hydrogen for industrial applications.

For European industrial decarbonisation, hydrogen is a necessary component for the hard-to-electrify sectors. It is not the universal decarbonisation solution that some of its advocates have described.