Hydrogen storage
Hydrogen storage is an unsolved engineering problem that limits the hydrogen economy; compressed gas, liquid, and solid-state approaches each have critical drawbacks.
Research snapshot · updated Apr 22, 2026
Core thesis
Hydrogen is the lightest element — storing useful quantities requires either extreme compression (700 bar), extreme cold (-253°C liquid), or metal hydride absorption. Each approach has low energy density per volume, high energy cost for compression/cooling, and infrastructure requirements that dwarf natural gas. Until storage is solved, hydrogen remains a point-to-point industrial chemical, not a portable fuel.
State of the art (2026)
Storage is no longer the binding question for the hydrogen economy; demand is. Through 2025 developers cancelled roughly 60 clean-hydrogen projects worth about 4.9 Mt/year of capacity, including BP's Duqm and H2Teesside schemes, as costs rose and confirmed offtakers stayed scarce. Salt caverns remain the only economical seasonal architecture: Mitsubishi Power's ACES Delta in Utah has two completed caverns and began hydrogen blending into its turbines in 2026. Tank storage (Hexagon Purus, Luxfer, NPROXX) and LOHC (Hydrogenious, Chiyoda) work technically but await volume. Air Products's NEOM ammonia complex slipped first output to 2027. The surviving template is captive, sovereign-backed, co-located.
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Signal stack
Evidence stacked leading → lagging
9 signals
Signal stack
Evidence stacked leading → lagging
Technology-native KPIs
Metrics that predict trajectory, tracked over time
3 tracked
Technology-native KPIs
Metrics that predict trajectory, tracked over time
Landscape map
Who builds what — and who depends on whom
53 players · 6 layers
Landscape map
Who builds what — and who depends on whom
Catalyst calendar
Dated events that will move the position
4 ahead
Catalyst calendar
Dated events that will move the position
Technology roadmap
Milestones on the path to maturity
8 milestones
Technology roadmap
Milestones on the path to maturity
Watchlists
Companies, people and papers — each with a remove-by condition
18 · 19
Watchlists
Companies, people and papers — each with a remove-by condition
Decision frameworks
The same call, framed for your desk
Locked
Decision frameworks
The same call, framed for your desk
Thesis changelog
When our view changed, and why
5 updates
Thesis changelog
When our view changed, and why
Change our mind
2 disconfirming conditions
You've read the verdict. The file is much deeper.
The full signal stack, technology-native KPIs tracked over time, the landscape of who depends on whom, the dated catalyst calendar, decision frameworks for every desk, live watchlists and the changelog of every time our call on Hydrogen storage has changed — all live inside CanaryIQ.