Is "10 MW PEM electrolyzer loop" the same as a PEM electrolyzer?

Yes — this model covers what is also called PEM electrolyzer, green hydrogen plant, electrolyzer loop. It runs the real process on the rigorous solver, so you can size and study it directly.

Which thermodynamic method does it use?

The NRTL property package, over water, h2 — already selected. You can switch the method on the canvas before running.

Which unit operations are in the flowsheet?

It chains PUMP, CELL. Every block is a real, solvable unit operation you can reconfigure, add to, or remove.

Do I need to install software or buy a license?

No. 10 MW PEM electrolyzer loop runs entirely in your browser on MaximaLabs — free, no install, no license. Open the model to load it live and run the deterministic solver.

All guides

Texas, USA

How to simulate 10 mw pem electrolyzer loop

A pilot-scale green-H₂ plant: water is pressurized and split in a rigorous PEM cell (Butler-Volmer + Nernst), drawing ~10 MW at a realistic ~1.9 V cell voltage.

Also known as: PEM electrolyzer, green hydrogen plant, electrolyzer loop.

Featured in:Green Hydrogen

Water

PUMP

CELL

1
Open the ready-made model
Open the "10 MW PEM electrolyzer loop" model in the MaximaLabs workspace — no install, no license. It loads live on the canvas, ready to edit and run.
2
Confirm the thermodynamics
This process is modeled with the NRTL property package over water, h2 — already selected, so the phase equilibrium and enthalpy are physically consistent from the first run.
3
Review the flowsheet
The flowsheet chains PUMP, CELL. Every block is a real, solvable unit op you can reconfigure on the canvas.
4
Run the simulation
Click Run. The deterministic solver converges the material and energy balances (recycles included) and fills the live stream table — the AI never invents a number.
5
Read the results and iterate
Inspect the converged streams, tweak a spec, and re-run — or ask the AI copilot to explain a result or diagnose a failed solve in plain English.

What you'll build

Thermodynamics: NRTL
Components: water, h2
Unit operations: PUMPCELL

Open this model in the workspace

Opens live on the canvas — free, no install.

Explore the model & flowsheet

Frequently asked questions

What does the 10 MW PEM electrolyzer loop model simulate?: A pilot-scale green-H₂ plant: water is pressurized and split in a rigorous PEM cell (Butler-Volmer + Nernst), drawing ~10 MW at a realistic ~1.9 V cell voltage.
Is "10 MW PEM electrolyzer loop" the same as a PEM electrolyzer?: Yes — this model covers what is also called PEM electrolyzer, green hydrogen plant, electrolyzer loop. It runs the real process on the rigorous solver, so you can size and study it directly.
Which thermodynamic method does it use?: The NRTL property package, over water, h2 — already selected. You can switch the method on the canvas before running.
Which unit operations are in the flowsheet?: It chains PUMP, CELL. Every block is a real, solvable unit operation you can reconfigure, add to, or remove.
Do I need to install software or buy a license?: No. 10 MW PEM electrolyzer loop runs entirely in your browser on MaximaLabs — free, no install, no license. Open the model to load it live and run the deterministic solver.

More guides like this

Illustrative — no specific site

Solar + wind green H₂ → CO₂ methanation

A solar PV array and a wind turbine each compute their own electrical output from a cited irradiance/power-curve model — not typed-in numbers — and a calculator block sums the two and writes it into a PEM electrolyzer's power draw, re-converging until the electrolyzer's hydrogen output is self-consistent with the array's own physics. That green H₂ is mixed with a CO₂-rich feed (representing the rich overhead of an amine-capture loop, e.g. basf-amdea-closed-solvent-loop or mixed-amine-acid-gas-treating — captured CO₂ standing in as a feed rather than re-solving the whole capture train here) and reacted to synthetic natural gas by the Sabatier reaction, same as co2-methanation. This is the full post-combustion-capture-plus-renewable-hydrogen loop: capture the carbon, split water with sun and wind, recombine them into pipeline-ready gas. CO₂ is deliberately fed in stoichiometric deficit so the electrolyzer's own H₂ output — not an assumed ratio — sets how much gas is made; the solar/wind design point (750 W/m² POA irradiance at 45°C cell temperature; a 9 m/s wind on a 100 m rotor) is a representative midday operating point, not a time series — this is a design-point simulation, not an 8760-hour production model.

Werlte, Germany

CO₂ methanation (e-fuels / power-to-gas)

The Sabatier reaction (CO₂ + 4H₂ ⇌ CH₄ + 2H₂O) converts captured CO₂ and green H₂ into synthetic natural gas at a 97% single-pass-equivalent conversion (real plants stage several adiabatic beds with intercooling to reach this; lumped into one reactor here), then a cooler and knockout drum condense the reaction water from the SNG — the e-fuels loop that closes the loop on captured carbon instead of just storing it.

Erlangen, Germany

LOHC hydrogen release (methylcyclohexane dehydrogenation)

A liquid organic hydrogen carrier (LOHC) power train: methylcyclohexane (MCH) is preheated and catalytically dehydrogenated (MCH → toluene + 3H2, endothermic, equilibrium-limited to ~90% single-pass conversion) to release hydrogen for downstream power generation. A flash drum separates the H₂-rich gas from the liquid; a distillation column then recovers the unreacted MCH overhead and recycles it to the reactor feed, closing a real tight liquid recycle loop, while spent toluene leaves the bottoms (to be re-hydrogenated back to MCH off-site, closing the supply-chain loop — out of scope for this dehydrogenation-side flowsheet). Screening-fidelity note: MCH and toluene are genuinely close-boiling (relative volatility ~1.4 under this thermo package at column conditions), so the recycle carries real toluene along with the recovered MCH rather than a sharp cut — a production column would use more stages to purify it further; this shows the recycle topology and its convergence, not an optimized column design.

Direct-reduced-iron (green steel) plant, Boden, Sweden

On-site oxygen: multi-bed vacuum pressure swing adsorption (VPSA)

Medical- / green-steel-grade oxygen generated on site from air by a 4-bed vacuum pressure swing adsorption unit over an N₂-selective zeolite (LiX/13X). This uses the native VPSA unit op — the proven 2-bed Skarstrom engine generalized to N beds with pressure-equalization steps and sub-atmospheric evacuation: nitrogen is adsorbed while oxygen passes as the light product, then each bed is pulled to a vacuum to desorb the nitrogen tail gas. The solver runs the real cyclic transient (tanks-in-series bed discretization + linear-driving-force kinetics + inter-bed equalization) to a periodic steady state — the transient dynamic equilibrium legacy steady-state simulators cannot capture without a separate dynamic license.

Herten, Germany