Free solar calculator

Estimate yearly yield, savings and payback in 30 seconds. No signup, no data stored.

System size
—
kWp
Yearly yield
—
kWh/year
Yearly savings
—
EUR/year
Payback
—
years

Estimate only. Real yield depends on shading, panel quality, inverter losses, and local weather. For accurate design, use Diaz Editor with 3D shading analysis.

Want exact numbers?

Diaz Editor does 3D shading, BOM, PDF permit packs, and multi-discipline design (solar + battery + heat pump + electrical). €99 founding lifetime, no subscription.

Get founding lifetime — €99 →
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What you get for €99

One-time. Lifetime. 3 seats. No subscription.

  • Diaz Editor Pro — lifetime license for your full workday €997
  • 3 seats — you + your foreman + your work-prep +€600
  • All trades in one tool — building, carpentry, electrical, plumbing, mechanical, solar 4 tools saved
  • DXF + IFC import — works with any architect, contractor, or installer Included
  • 1-click PDF export — quote, work-drawing, and BOM in one pack Included
  • DXF + CNC export for the workshop — cut lists, sheet layouts, mill paths Included
  • All future updates — v0.4, v0.5, v0.6... Included
  • Founding-member feedback board — your voice on the roadmap Exclusive

Built for self-employed tradespeople + small teams (1-10 people). Not for architects or utility-scale engineering — AutoCAD and Aurora are better at those.

Regular price (after founding):

€997 €99 today

Become a founding member — €99 →

100 spots total. Stripe checkout. Instant download after payment.

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