The sun gives.
Dust takes.
Helios decides.
A physics-based monitor using weather and air quality, models the dust on your panels, and tells you when cleaning pays off — in kilowatt-hours and euros.
Scrub through 14 weeks.
Watch the wash flip green.
Drag the slider to step through a demo rooftop. Soiling climbs, the model recomputes the 90-day ROI, and the verdict flips when the math earns it.
Soiling
2.4%
vs. clean baseline
Wash ROI · 90d
€0
net of €60 wash
Verdict
Hold
Week 1 · Mar 1
SOILING · 14 WEEKS · DRAG TO SHOW
What Helios does for you.
Three ways your solar investment becomes visible.
Clean when it pays off
Helios tracks soiling losses week by week and tells you the exact moment cleaning pays for itself. Not a guess; a calculation based on your panels, your location, and your costs.
Spot underperformance early
Soiling builds up invisibly. A few percent today becomes a real cost over weeks. Helios flags unusual drops in plain language so you can act before small losses become big ones.
See your real solar ROI
How much has soiling cost you this year? How much did your last clean save? Helios puts euro figures on everything so your solar investment is never a black box.
Up and running in minutes.
No hardware. No engineer. Just your postcode.
Tell us about your system
Enter your location, panel capacity, and electricity tariff. Takes less than 3 minutes.
We analyse your environment
Our model runs overnight using local weather, air quality, and your panel specs.
Wake up to your first report
By morning, your dashboard shows your soiling level, financial impact, and whether cleaning makes sense. From then on, Helios updates every night.
Your system,
delivered to your inbox.
Opt in once and Helios emails you a plain-English summary every week — soiling trend, financial losses, and whether to clean. No login needed.
- Current soiling ratio and trend
- Weekly energy and financial loss
- Urgent cleaning alert if threshold reached
Plug it in.
Watch it work.
Configure your system in a few steps. The first soiling estimate is ready in a few minutes.
Try for free