Getting started: hydrogen projects and calculators
Start with a project question or a calculation. Use Projects to find reported developments and inspect their evidence; use Calculators to test your own assumptions. Before comparing results, check what each number measures, its unit and the scope of the original source.
Choose a starting point for your question
A question such as “Which projects are being developed in this country?” starts in Projects. A question such as “How much hydrogen could this plant produce?” starts in Calculators. The two views support different tasks: project records organize reported information; calculator results follow the inputs you choose.
| Your question | Start with | What to check next |
|---|---|---|
| Find a hydrogen development | Projects | Location, product, project phase and sources |
| Understand an organization or a country | Companies or Countries | Linked records and the scope of each source |
| Estimate hydrogen production or cost | Calculators | Units, system boundary and operating assumptions |
| Find a report or policy document | Report library or Policies | Original document, applicable location and conditions |
Read the project before comparing its numbers
Search for a project name or use the available filters, then open its detail page. Read the product and reported development stage alongside capacity. Electrical input in MW and hydrogen production in tonnes per year measure different quantities; a renewable power project and an electrolyzer may also have different boundaries.
Keep phases separate. An announced expansion can describe a future target while an earlier phase has a different capacity. A stage label and a production target do not establish that the target has been achieved. The project comparison guide provides a worked example and a short comparison checklist.
Open Sources when a value matters to your decision
On a detail page, open Sources for the relevant section and expand the field you want to check. Follow the original document link where it is available. Check which facility or phase it describes, what the unit means and which period the statement covers.
Source details may distinguish “As of”, the time described by the source, from “Last confirmed”, when H2Prism checked the information. A later check does not make an old measurement a new measurement. For a policy, an effective date describes when a provision applies. Read the underlying conditions before applying it to a project.
Treat a missing value as an unanswered question
A dash means a value is not shown in that field. It does not mean zero capacity, no investment or no activity. Do not replace it with a guess when calculating an average or ranking projects.
A search result is a starting point for research. If a field needed for your comparison is absent, keep the project in a separate “needs information” list or return to the original source. H2Prism does not establish a fact merely because it appears in a search result.
Try a small calculation with stated assumptions
For a production example, open the electrolyzer production tool. An illustrative 100 MW plant using 50 kWh per kg produces 2,000 kg per hour at full input power. At a 50% annual capacity factor over 8,760 hours, the same assumptions give 8,760 tonnes per year. These are calculated examples, not a forecast for a named project.
Use the price calculator for a production-cost case. Start with Quick example to learn the controls, then replace the assumptions with your own. Check the plant conditions, electricity price, equipment costs and operating period before reading the result. The production-cost guide explains why the electricity component, LCOH and a selling price answer different questions.
Keep a clear record of the case you compared
In the price calculator, Duplicate creates a case you can change and Compare lets you inspect cases together. Change one assumption at a time when you want to understand its effect. Copy summary or Export cases can preserve the calculation context for your own notes.
Keep the input values, units and source references with a result. For reported project facts, retain the original source and the phase it describes. For a calculated value, retain the operating assumptions. That makes it possible to explain a difference later instead of comparing two unexplained numbers.
Common questions
Do the example inputs describe a real hydrogen project?
No. Quick example and the numerical example in this guide are illustrative starting points. Replace the inputs and inspect their sources before using a case for project screening.
Does a dash mean zero?
No. It means a value is not shown in that field. Keep missing information separate from a measured or reported zero.
Where do I find the original evidence?
Open Sources in the relevant detail-page section, expand the field and follow its original source link where available. Check the scope and date of that source.
Which calculation should I use first?
Use the production tool for a MW-to-output or demand-to-MW question, the converter for matching units, and the price calculator for a cost case with plant and financial assumptions.