Build a bankable configuration

Select your preferred electrolyser technology, target capacity and storage profile. The tool estimates high-level CAPEX with a configurable breakdown and gives indicative sizing guidance.

Plant parameters

Plant capacity (MW) i

Electrolyser technology i

Module size (MW per skid) i

Target availability (% runtime) i

Storage & compression

Storage autonomy (hours) i

Storage medium i

Export pressure (bar) i

Include downstream compressor (disable if electrolyser provides required pressure)

General CAPEX factors

Balance-of-plant factor (% of electrolyser CAPEX) i

Grid & connection allowance (MEUR) i

Contingency (% of subtotal) i

Include buildings & civils allowance (default 0.8 MEUR per 10 MW)

Additional CAPEX items

Engineering & design (% of electrolyser + BOP) i

Installation & erection (% of equipment) i

Freight & logistics (% of equipment) i

Land acquisition (MEUR) i

Permitting & environmental (MEUR) i

Commissioning & start-up (MEUR) i

Owner's costs (% of subtotal) i

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Assumptions are indicative. For investment cases, validate with vendor quotes and site-specific estimates.

CAPEX breakdown

Adjust the parameters to see totals.

Scenario	Total CAPEX	Actions
No CAPEX scenarios saved yet.

Indicative use only. Use this output to frame scope and compare options, then validate it with vendor quotations, site conditions, and project-specific engineering before using it in any formal approval process.

What this tool does

Provides an indicative CAPEX screen for hydrogen plant concepts, helping teams compare technology choices, storage strategies, and scope decisions before committing to detailed estimates.

When to use it

Use it for concept comparison, early supplier conversations, and budget framing. Do not use it as a substitute for EPC pricing, detailed quantity take-off, or an approved project cost estimate.

Key assumptions

Electrolyser technology and module size drive the starting equipment basis.
Storage, pressure, and compressor choices adjust downstream scope and cost allowances.
Balance-of-plant, engineering, installation, freight, owner's costs, and contingency are treated as heuristic early-stage allowances.
Default values are intended to speed up screening and should be replaced with site-specific and vendor-specific inputs before any external use.

Results interpretation

This estimate is most useful for comparing concepts, spotting major cost drivers, and deciding where supplier engagement is needed. It is not a bankable budget and should not be treated as a final project control number.

How this tool works: BuckleBridge combines technology-specific starting assumptions with scope-based allowances commonly used in early hydrogen project development, while keeping the internal cost logic proprietary.

Next steps

Use the outputs to brief suppliers, align budgets, and feed the LCOH calculator.

Email the CAPEX file pack

Send the CSV or PDF to your inbox, then use it to brief suppliers, align budget conversations, or tighten the next project discussion.

Want this pressure-tested?

Discuss your project with BuckleBridge if you want a review of vendor logic, contingency levels, or project-specific scope assumptions.