Hasim 2.1.0 · Green Hydrogen Engineering Suite

Design green hydrogen plants from the cell to the plant fence – in minutes.

Hasim turns a design basis into a complete engineering package: process flow and single-line diagrams, stream tables, equipment datasheets, energy and mass balances, an 8760-hour simulation, economics, safety distances and a printable design report.

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Windows 10/11 · works offline · one price, paid once · free 14-day trial in your browser
Hasim engineering workstation with a process flow diagram
137engineering equations
9engineering drawings
8760 hannual dispatch simulation
318validation checks
86comparisons with measured plants and tools
See it in action

Hasim in 90 seconds

From the design basis to drawings, a full-year simulation, economics, design checks and the design report – the Store edition as you will use it.

What Hasim does

A complete engineering workstation for green hydrogen

Edit the design basis in the property grid and the whole system is re-solved instantly – equipment, streams, drawings, annual performance, costs and design checks stay consistent.

Process engineering

Process flow diagram with a live stream table

The PFD follows ISO 10628 conventions with numbered streams, equipment tags and instrument bubbles. Every stream carries temperature, pressure, mass and volume flow and composition.

  • Electrolyser stacks, separators, gas processing, deoxo and TSA dryers
  • Water treatment, cooling loops, compression, storage and end use
  • Click any item for its datasheet; hover a stream for its data
  • Export drawings as SVG and tables as CSV
Process flow diagram
Electrical engineering

Single-line diagram and power-electronics sizing

Transformers, rectifiers, harmonic filters, busbars and the MV connection are sized with the equations of the design manual and drawn with IEC 60617 symbols.

  • Thyristor 12-pulse or IGBT active front-end rectifiers
  • Short-circuit currents (IEC 60909), harmonics at the PCC (IEEE 519-2022), power factor
  • PV inverters, wind turbines, battery and grid feeders
  • Auxiliary transformer and load list
Electrical single-line diagram
Balances

Energy and mass balances as Sankey diagrams

The annual energy flow from PV, wind and grid through conversion losses to the chemical energy of hydrogen – and the water balance from raw water to hydrogen, oxygen and brine – close to machine precision.

  • Curtailment, battery, auxiliary and conversion losses
  • Raw water, demineralised water, brine and blowdown
  • Ammonia synthesis for Power-to-X cases
  • Balance closure reported as a design check
Energy Sankey diagram
Simulation

8760-hour dispatch with a live power-flow view

A synthetic typical year of weather drives the dispatch of renewables, battery, grid and electrolyser against the storage and offtake – watch any hour of the year in the power-flow player.

  • Capacity factor, full-load hours, starts and curtailment
  • Battery cycles, storage inventory and unserved energy
  • Load-duration curve and hour-by-day heat map
  • Hourly results exportable to CSV
Annual simulation with power flow
Economics

LCOH, CAPEX and sensitivity in one click

Levelised cost of hydrogen from the full-year simulation, CAPEX build-up, and a one-at-a-time sensitivity analysis that re-solves the complete system for every case.

  • LCOH breakdown: capital, stacks, O&M, electricity, water
  • Tornado chart of the key drivers
  • Carbon intensity with hourly and monthly matching (RFNBO)
  • Design report with all assumptions and references
Economics and sensitivity analysis
Engineering tools

137 equations, a Cell & Stack Lab and a script console

Every numbered equation of the underlying calculation and plant-design manuals is available as a live calculator with parametric sweeps – validated against 318 worked-example values.

  • Polarisation curves, losses, part-load and gas purity
  • Seventeen ready-made engineering experiments
  • Block-based model builder from supply to end use
  • JavaScript API for automated studies
Equation library
Sustainability

Component library and impact assessment

Build plants and value chains from a library of generic equipment – or from your own supplier data – and see the technical, economic, environmental and social impacts while you design.

  • 35 components: PV, wind turbines for all IEC classes and offshore, batteries, water plants, stacks, power electronics, compressors, storage, delivery and ammonia
  • Component wizard with the live effect on LCOH, carbon intensity, jobs and design checks
  • Life-cycle carbon intensity, water stress, land use and local content
  • Construction and permanent jobs, hazard distances and Seveso III tier
Impact assessment of a plant
Drawing set

Nine engineering drawings, regenerated on every change

Each drawing is produced on a sheet with frame, zones and title block – ready for design reviews and reports.

PFD-001
PFD-001 Process flow diagram with stream table
SLD-001
SLD-001 Electrical single-line diagram
SNK-001
SNK-001/002 Energy and mass Sankey diagrams
CEL-001
CEL-001 Cell cross-section and voltage breakdown
WTR-001
WTR-001 / CMP-001 Water-treatment and compression trains
LAY-001
LAY-001 Plot plan with safety distances
Technical scope

What you can model

ElectrolysisPEM, alkaline (AEL), AEM and solid-oxide (SOEC); cell, stack, module and plant level; degradation, stack life and gas purity (ISO 22734-1).
Power supplyGrid with PPA, islanded PV–wind–battery hybrids, grid top-up modes, auxiliary backup.
WaterMunicipal water or seawater RO with EDI polishing, scaling indices, brine dilution and water cost.
Heat and gas processingElectrolyte cooling, dry coolers, gas cooling, deoxo and TSA drying.
Compression and storageMultistage compression within the API 618 temperature limit, real-gas storage sizing, ASME VIII vessel walls and PED category.
Delivery and end usePipelines, tube trailers, 70 MPa refuelling stations and ammonia synthesis.
Economics and carbonCAPEX, OPEX, stack replacement from degradation, LCOH; RFNBO, EU Taxonomy and US 45V carbon screening.
Safety and codesLeak, jet-fire and overpressure distances, NFPA 2 separation, hazardous areas (IEC 60079-10-1), Seveso III and OSHA PSM screening, ASME B31.12 pipelines.
Pricing

One price, paid once

Hasim is sold in the Microsoft Store as a one-time purchase – a lifetime licence for one user with all updates of the Store edition. No subscription, no licence key, no sign-in.

Microsoft Store

Hasim for Windows

Lifetime licence for one user
US$ 99.99
one-time purchase · no subscription
  • Every function: drawings, stream and equipment tables, 8760-hour simulation, economics, design checks and report
  • Equation library, Cell & Stack Lab, experiments, model builder and script console
  • Component library, component wizard and impact assessment
  • Commercial and non-commercial use; unwatermarked outputs
  • All updates of the Microsoft Store edition
  • Works offline – your projects stay on your computer
Get it from Microsoft

The Microsoft Store shows the price in your currency, including applicable taxes. Payment, receipts and refunds are handled by Microsoft.

Universities and companies that need several licences: sales@hasim-software.com.

FAQ

Frequently asked questions

How do I buy Hasim?

In the Microsoft Store, as a one-time purchase. Hasim installs like any Windows app and starts as the full version – no licence key and no sign-in are needed.

Can I try it first?

Yes. Open Hasim in your browser and use every function for 14 days; evaluation outputs carry a watermark. Your projects stay in your browser.

Can I use Hasim on more than one computer?

Install it from the Microsoft Store with the same Microsoft account on your other Windows computers.

Are updates included?

Yes. All updates of the Microsoft Store edition are included and installed through the Store.

Does Hasim send my project data anywhere?

No. Hasim runs entirely on your computer. Projects are saved as local .hasim files.

Which systems are supported?

The Store app runs on Windows 10 (version 1809 or later) and Windows 11, 64-bit. The free trial runs in any current browser.

Who handles payment and refunds?

Microsoft. The Store shows the price in your currency including applicable taxes; receipts and refund requests are in your Microsoft account.

Can my university or company buy several licences?

Yes – write to sales@hasim-software.com for licences for several users, site licences or a quotation.

Developed by Prof. Hani Muhsen

Hasim is written, maintained and supported by its author. Every result is traceable to a numbered equation of the underlying engineering manuals and to worked examples used for validation.

Get it from Microsoft Try it free in your browser