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Excel feasibility model vs Feaso.

Excel will let you do anything. Feaso decides for you. Where each one wins, and which to use when.

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Excel feasibility

What Excel gives you

  • Infinite flexibility, zero structure
  • Hours of setup before the first number
  • Formulas that break with every change
  • Versions named feasibility_v17_FINAL_use_this.xlsx
  • Manual scenario duplication
  • Print-formatting before every IC pack
Feaso

What Feaso gives you

  • Opinionated structure, fast first number
  • AU residential cost stack built in
  • No formulas to maintain or break
  • One project, many scenarios — side by side
  • Auditable inputs and outputs
  • Branded one-page PDF, ready to send

Why teams move from Excel to Feaso

Excel is the right tool for a one-off bespoke calculation. It's the wrong tool for a workflow you do five times a week. Feaso is built for the workflow — the structure that's the same on every project — so the bespoke part of your day shrinks back to scenario assumptions, not formula maintenance.

When Excel still wins

One-off ad-hoc calculations, custom funding structures Feaso doesn't yet model, and historical models you've inherited are still fine in Excel. We don't pretend Feaso is the right tool for every job — just for the recurring residential feasibility.

What changes day-to-day

  • Site screening goes from hours to under 90 seconds.
  • Scenario comparison stops being a copy-paste exercise.
  • Cashflow becomes a default output, not a Friday afternoon project.
  • IC packs assemble themselves from the model.

Related

Excel feasibility model problems
Spreadsheet vs software
Spreadsheet risk checklist

Questions

Frequently asked

Can I import my existing Excel model?

Not directly. The fastest path is to set up the project in Feaso once — most projects take 5–10 minutes the first time.

Do I lose flexibility moving off Excel?

You lose the ability to bend any cell. You gain a structure that doesn't break. Most teams find the trade worth it after the first project.

Run your first feasibility in 90 seconds.

No spreadsheets. No setup. Fourteen-day free trial, no credit card.

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