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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
Back to home Book a clean now