Solar Pre-Audit Tool

Find out what solar system you actually need before you spend money

Get a practical solar sizing estimate in under a minute using either your electricity bill or your appliance list.

Start Pre-Audit

< 60 sec complete the flow

Bifacial panel options 550W to 720W module basis

249 countries ready in the country picker

Step 1

Start your pre-audit

Country City

Step 2

Choose your input mode

Electricity bill Appliance estimate

Monthly bill Currency Price per kWh (optional)

Appliance rows

Duty cycle controls how much of the entered time the appliance actually runs at full wattage. A 60% duty on 12 hours/day means the calculator uses 7.2 effective full-power hours.

Solar offset target

50% 75% 100%

Battery Panel selection

All panel options are modeled as bifacial modules. Final layout and stringing still need roof-face review.

Find out what solar system you actually need before you spend money

Start your pre-audit

Choose your input mode

Appliance rows

Your instant pre-audit result

Recommendation snapshot

Unlock the full report

Assumptions and system notes