Resource Center
The engineering vocabulary, methods and tools behind a green hydrogen plant.
01 — Glossary
Glossary
Plain-language definitions with typical ranges and sources.
30 terms →
02 — Guides
Guides
Our guides and the blog articles worth reading first, by plant system.
2 guides →
03 — Tools
Tools
Free tools for early project work, with the data sources they use.
1 tool →
Featured guide
Why Hybrid Solar-Wind Systems Outperform Single-Source RE for Green Hydrogen: The Capacity Factor Math
Why pairing solar with wind raises electrolyser capacity factor, and how the mix changes plant sizing.
· 19 min read
By plant system
Explore by plant system
Renewable input
Solar and wind supply, capacity factors and the power profile that feeds the plant.
Terms
Guides
Electrolysis
Electrolyzer technologies, stack performance, efficiency and degradation.
Terms
- Alkaline Water Electrolysis
- Gas Crossover (Hydrogen in Oxygen)
- LHV vs HHV Efficiency
- Minimum Load (Turndown)
- PEM Electrolysis
- Polarization Curve
- Solid Oxide Electrolysis
- Specific Energy Consumption
- Stack Degradation
Guides
Water & cooling
Water sourcing, treatment and desalination, and how the plant rejects heat.
Terms
Gas conditioning
Drying, purification and the hydrogen quality delivered downstream.
Terms
Compression
Compressor types, pressure levels and the energy it takes to move hydrogen.
Terms
Storage
Buffer and bulk storage of hydrogen and power, and how it is sized.
Terms
Economics
LCOH, CAPEX, OPEX, financing and the levers that move project cost.
Terms
Regulation
RFNBO rules, certification and the policy frameworks projects must meet.
Terms
Site Screener
Screen a site against live resource data
The free HYZEN Site Screener scores any location worldwide on solar, wind, grid access, port distance and protected areas.