All tools
Nineteen professional-grade calculators, organised by discipline. All tools are free - no account required.
Economics & Finance
LCOH Calculator FREE
Levelised cost of hydrogen - standard NPV model with two-scenario comparison
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LCOH Advanced PRO
Detailed LCOH with capacity factors, stack degradation, replacement scheduling and sensitivity
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CAPEX Tool FREE
Capital expenditure estimation for electrolyser, storage, BoP and compression scope
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CAPEX Pro PRO
Advanced CAPEX with contingency, indirect costs, sensitivity waterfall and export
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LCOS Calculator FREE
Levelised cost of storage - NPV costs discounted against round-trip energy output
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Break-even Price FREE
Minimum H₂ offtake price for NPV breakeven and target IRR - NPV vs price curve
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Stack Replacement Economics FREE
Model replacement intervals, NPV cost and annual provision over project life
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Carbon Intensity Calculator FREE
Production CI vs grey, blue and green benchmarks - EU taxonomy flag at 3.38 kgCO₂/kgH₂
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Process Engineering ALL FREE
Electrolyser Sizing
Size electrolyser plant from H₂ demand - installed capacity, stack count, energy and water
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Compressor Power
Multi-stage isentropic compression power, outlet temperature and specific energy (kWh/kg)
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Heat Exchanger Sizing
LMTD method - heat duty, UA product and indicative area for H₂ cooling or heating duty
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Pipeline Pressure Drop
Darcy-Weisbach with Colebrook-White for H₂ pipelines - pressure profile, velocity and Re
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Storage Sizing
Compressed hydrogen storage volume, charge/discharge time and indicative vessel CAPEX
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Flow & Energy Conversion
Hydrogen flow unit conversions between Nm³/h, kg/h, MWh and GJ - live bidirectional
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Safety & Compliance ALL FREE
Flammability Zone Estimator
Indicative H₂ release rate, LFL/UFL cloud dimensions and 2D dispersion visualisation for leak scenarios
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Ventilation Rate Calculator
Required air changes per hour to control steady-state H₂ concentration - forward and reverse modes
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Purge Volume Calculator
Purge cycles, sweep volume and concentration decay curve for vessel or pipeline purging operations
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