Home
Free solar savings calculator

Find out what
your panels are
costing you

Enter three details about your system and we'll show you exactly what soiling is costing you each year — and what a professional clean would recover.

Takes 60 seconds
No email required to see results
Northern Rivers based
Step 1 of 2 — Your system

Tell us about your solar

Move the sliders to match your system — results update instantly.

6.6 kW
5 yrs
30 ¢/kWh
Estimated annual loss from soiling
$—
— kWh lost per year

Cost of a professional clean
2-year savings after clean
Annual ROI on a clean

Clean system potential100%
Your panels right now

Results are estimates. WattNext measures actual before & after output on every job.

Step 2 of 2 — Get your results

We'll send your full
report to your inbox

Enter your details and we'll email you a personalised summary including your estimated annual loss, clean cost, and recommended next step — plus a quote if you'd like one.

System size
Panel age
Electricity rate
Last cleaned
Annual loss from soiling
Clean cost
2-year saving after clean

Results on their way

We've emailed your personalised solar savings summary. Check your inbox — it should arrive within a few minutes.

In the meantime, here's what we found for your system:

Estimated annual loss
from soiling
Annual ROI on
a professional clean
Cost of a clean
for your system
2-year saving
after clean