Polestar Engineering tools
The engine, with the method written out.
Free calculations that run the same engine as HYDRA OS. Each one states its method, its assumptions and its references.
-
Electrolyser spec normaliser
AvailableAre these electrolyser quotes comparable once they are on the same basis?
-
Polarisation curve fitter
AvailableWhat does your polarisation curve say about kinetics, resistance and mass transport?
-
Degradation-adjusted LCOH
AvailableWhat does stack degradation do to the levelised cost of hydrogen over the project life?
-
Guarantee test correction
AvailableDoes the acceptance test pass once corrected to guarantee conditions?
-
Minimum turndown and H₂ in O₂
AvailableHow low can the stack go before hydrogen crossover reaches your alarm threshold?
-
Cell voltage cost
AvailableWhat does a millivolt cost in hydrogen production?
-
Degradation rate converter
AvailableµV/h, %/1000 h, mV/kh: one number, every convention.
Engine v0.3.0 · Engine changelog · Your tools account
Questions.
Are these the same calculations HYDRA OS runs?
Yes. Every tool runs the same engine as HYDRA OS, with its method, assumptions and references written out on the page.
Is an account needed?
No. Every calculation works without an account, and nothing entered is sent anywhere unless it is saved on purpose.
Can a result be used for a design decision?
These are screening calculations, not an engineering sign-off. Check every result against your own data and judgement.