Example calculation
SolarLab uses the current project values to show how the recommendation changes.
Connected design
Design your solar system without the technical overload.
Start with electricity use, battery preference, and roof size. Open Advanced view only when you need technical control.
No account Instant result PDF export
1Tell us what you knowUse the simple fields first.
2See the recommendationSolarLab explains what the number means.
3Refine or downloadContinue only when the result makes sense.
Design inputs
Start with the essentials
Most homeowners only need the Simple view. SolarLab keeps practical defaults in the background.
Roof fit
— See how the panels fit
—
Estimated energy coverage—
Do not rely on one number alone
Check the result against actual equipment and site conditions.
Is this installation-ready?
No. It is a planning estimate that should be verified by qualified professionals.
How was this calculated?
Calculation method
Formula
The calculator uses the displayed inputs and standard planning relationships.
Important assumptions
Read the full methodology and update history → Verify the final design against actual equipment data sheets, site conditions, and applicable requirements.