EngiMetric

Stage 12 of 15 / Calculation

Build a screening-level annualized hydrogen cost

Assemble CAPEX and OPEX from editable unit rates and report a pre-tax, pre-revenue LCOH.

  • Advanced
  • 15 stages
  • 16 min
  • Process and energy systems
In development Green Hydrogen Plant
Draft development workbench (noindex). These stages are exercisable on a direct development route for learning and review. The journey remains a draft: not published, excluded from search/sitemap by existing protections, and not independently engineering-approved. Quantitative outputs are screening/educational where implemented and must not be treated as certified design, OEM guarantees, project approval, or bankable results.
Professional review required.Engines and workbench are implemented for draft development use. Defaults, sources, heating-value basis and engineering assumptions still require independent review. The journey must not be published or sitemap-indexed from this phase. Current verification state: Needs engineering review.

After this stage you can

Learning objectives
  • Trace each CAPEX line to a rate and a physical quantity from the model.
  • State LCOH with currency, life and discount rate.
  • Read the electricity-share and sensitivity table before defending the number.

The engineering

CAPEX is stack, BOP, compression, storage, water treatment and civil, plus design, contingency and commissioning percentages. OPEX is year-one electricity, water, maintenance, staff and other fixed cost. Electricity is the only item escalated in the cashflow. One stack replacement is discounted at the stated year.

LCOH is NPV of cost times a capital recovery factor, divided by year-one annual production held flat. There is no tax, debt, grant, oxygen credit or hydrogen revenue. Sensitivities re-run the same cost stack one change at a time.

Unit rates are assumptions. A result in USD/kg is not a market price and not an investment return.

EngiMetric / green hydrogen educational workbench

Green Hydrogen Plant — Educational Screening Workbench

Loading the hydrogen project state...

Draft development workbench (noindex). Inputs are saved in this browser only. Calculations shown are screening/educational outputs from the existing model where implemented; missing or unsupported quantitative areas remain explicit. Completing stages records self-declared learning progress only — it is not quantitative engineering capability, not an OEM guarantee, and not industrial/project approval.

Stage

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Inputs

Saved in this browser

Edit the screening inputs for this stage, then calculate. Values you enter are marked as user-entered in the local project state; defaults remain illustrative until replaced.

Screening results

Educational model output

Results come from the existing hydrogen screening model. Unsupported quantitative areas, missing evidence, and review requirements remain explicit; outputs are not certified design or approval decisions.

Process & balance context

Textual screening views

This educational workbench presents stage-specific calculated outputs and limitations. Detailed interactive diagrams are not required for journey completion; use the stage results and assumptions panels to review boundaries, flows, energy, storage, and economics context.

Assumptions, limitations & review

From journey definition

Your deliverable for this stage

Capstone evidence

A screening LCOH with CAPEX, OPEX and one-at-a-time sensitivities.

Stage assumptions, limits and sources

Provenance

Assumptions

  • Unit rates are editable screening values, not vendor quotes.
  • Production is held at the year-one annual figure for the whole life.

Constraints

  • No revenue, tax or subsidy is included.

Limitations

  • Not bankable. No financing structure, working capital or decommissioning.
  • No hourly power price or demand charge.

Review status

  • Needs engineering review
  • Professional review is required before publication or use as a design basis.

Stage progress is stored in this browser only. The explanation and every limit on this page remain readable with JavaScript disabled; the calculators need it to run.

Stage kind: Calculation / Journey: green-hydrogen / Stage: economics