The problem
A catalyst result in millivolts and electron-volts cannot be compared against a commercial target. The comparison people actually need is in euros per kilogram, at their current density, with their electricity price — and making that translation by hand, consistently, for every candidate, is what nobody has time to do.
How it works
- Activation, ohmic and transport losses are assembled into a cell voltage at your chosen current density.
- Cell voltage becomes energy consumption in kWh per kilogram of hydrogen.
- Catalyst loading and power density give iridium intensity in grams per kilowatt.
- Capex, stack lifetime, capacity factor and electricity price close it to a levelised cost with a full breakdown.
Same model as the free calculator
The public tool and the platform share one versioned method, so results are comparable.
Every assumption editable
Nothing is hidden in a constant. If you disagree with an assumption, change it and see the effect.
Breakdown, not just a total
Electricity, capex, stack replacement and opex are reported separately.
Questions
Is this a bankable financial model?
No. It is an engineering estimate for comparing candidates on a consistent basis. Treat the ranges as sensitivity bands, not confidence intervals, and do not put it in front of a lender.
Can I use my own cost assumptions?
Yes — capex, WACC, project life, capacity factor, electricity price and stack lifetime are all inputs.
Related
OER activity screening
Rank candidates by oxygen-evolution activity without setting up a single calculation.
Acidic stability
Activity is easy to find. Surviving acidic OER is the hard part.
Substitution series
One parent structure, a substitution rule, and the whole space comes back ranked.
Try it on your own chemistry
Early access includes free credits. The LCOH calculator is free and needs no account.