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Open Jack

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Founder · OpenJack

Member since June 2026

Calculators
12
Total runs
336
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Published calculators12

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Based on Stolzenburg et al., Efficient Liquefaction of Hydrogen: Results of the IDEALHY Project (2013); DOE Hydrogen and Fuel Cells Program Record 19001 (2019).

Hydrogen liquefaction

Screening of specific liquefaction energy and levelized cost of liquefaction (EUR/kg) for turning gaseous H2 into LH2 at -253 C.

Energy mass balanceCostingHydrogen
Open Jack
66
Based on IEA Global Hydrogen Review 2024 — Assumptions annex

PEM 20 MW Germany 2024

PEM water electrolyser, 20 MW, grounded on EU/IEA/IRENA/DOE 2024 techno-economics for Germany.

Energy mass balanceCostingHydrogen
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49
Preview — CO2 methanation (Sabatier, power-to-gas)
Based on Goetz et al. 2016 (Renewable Energy); Frontiers in Energy Research 2021; IRENA; IEA

CO2 methanation (Sabatier, power-to-gas)

Screening synthetic natural gas (SNG) output and levelized cost (EUR/MWh) for catalytic CO2 methanation from green hydrogen and captured CO2.

Energy mass balanceCostingHydrogen
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Preview — Biogas Feedstock Mix & BMP Potential (CH4/CO2/Digestate) (fork)

Biogas Feedstock Mix & BMP Potential (CH4/CO2/Digestate) (fork)

Estimate annual biomethane potential from a mixed feedstock inlet using TS (MS), VS (MV), BMP and biogas CH4 content; outputs biogas, CH4, CO2 and digestate quantity.

Energy mass balanceBiomass
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Based on FCH 2 JU / Clean Hydrogen Partnership MAWP KPIs; US DOE stationary CHP targets; IEA Global Hydrogen Review 2024

PEM fuel cell CHP (H2 to power + heat)

Techno-economic screening of a PEM fuel cell cogeneration system: electricity, recovered heat, H2 consumption and electricity-only LCOE from a hydrogen feed.

Energy mass balanceCostingHydrogen
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29
Based on Argonne National Laboratory / US DOE (Papadias & Ahluwalia); FZ Julich (Caglayan et al.); EWI

Underground H2 storage (salt cavern)

Screening levelized cost of storage (LCOS) for hydrogen in solution-mined salt caverns: working capacity, annual throughput, injection energy and EUR/kg storage cost.

Equipment sizingEnergy mass balance+1Hydrogen
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Based on IRENA (2022) Innovation Outlook: Renewable Ammonia; C-THRU Ammonia Technical Brief (2022)

Green ammonia synthesis (Haber-Bosch)

Techno-economic screening of an electrified Haber-Bosch ammonia plant fed by green hydrogen and ASU nitrogen.

Energy mass balanceCostingHydrogen
Open Jack
23
Based on IEA Bioenergy Task 33 — Biomass gasification for hydrogen production (Feb 2025).

Biomass gasification to hydrogen

Screening of hydrogen yield (kg/t biomass) and levelized cost (EUR/kg) from thermochemical biomass gasification + water-gas shift.

Energy mass balanceCostingHydrogen
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23
Based on DOE Hydrogen Program Records 20007 (Delivery & Dispensing Cost, HDSAM) and 21002 (Fueling Station Cost); cross-checked vs E3S 312/07010 HRS cost model

Hydrogen refuelling station (HRS)

Screening levelized cost of dispensing (EUR/kg) at a 350/700 bar hydrogen refuelling station fed with delivered H2.

CostingEnergy mass balanceHydrogen
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21
Based on Argonne National Laboratory (Papadias, Peng, Ahluwalia 2021, OSTI 1807903) — Hydrogen carriers: toluene hydrogenation techno-economics; Wikipedia LOHC; Chiyoda SPERA.

LOHC hydrogenation (toluene to MCH)

Screening reaction energy and levelized cost (EUR/kg H2) of binding hydrogen into a toluene/methylcyclohexane liquid organic carrier for ambient-condition transport (hydrogenation leg only).

Energy mass balanceCostingHydrogen
Open Jack
19
Based on NREL / IEA-PVPS

PV inverter conversion, clipping and levelized cost

Turns a PV inverter datasheet into AC energy delivered, conversion and clipping losses, and the levelized cost of the conversion step.

Energy mass balanceCostingSolar
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66
Based on Fraunhofer ISE / NREL

PV module yield & levelized cost (module-level)

Turns a PV module datasheet into annual yield, degradation-adjusted lifetime energy and levelized cost.

Energy mass balanceCostingSolar
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