Hydrogen calculators & data for practitioners

Free hydrogen calculators plus a sourced project map and national policy database.

H2Prism is a free workbench for the early engineering, commercial, and policy questions behind hydrogen projects. Use the calculators for a transparent first pass, then check each assumption against the linked data.

Start with the decision in front of you

• Price hydrogen with LCOH tools, from a quick estimate to cash flow, NPV, IRR, and payback.
• Check engineering inputs, including unit conversion, electrolyzer sizing, water demand, and carbon intensity.
• Compare evidence in the policy database, offtake tracker, reports library, and project map.

What H2Prism does differently

We separate estimates from source-backed records, preserve technology and system boundaries, and link data pages back to the primary material where available. Results are useful for screening work, not certified compliance or investment advice.