The sun gives.Dust takes.Helios helps you decide.
Two layers.
One system.
Weather and air quality model
Helios estimates soiling using local weather and atmospheric data — no inverter or sensors needed. Works from the moment you add your system.
Soiling
7.9%
vs. clean baseline
Lost today
€3.95
at current tariff
Payback
52d
if cleaned now
SOILING · 7 WEEKS · DRAG TO SCRUB
- Daily physics-based soiling model
- Payback-period cleaning recommendation
- Rain clean detection and history
- Weekly email digest
Real inverter data analysis
Upload your inverter's production data and Helios compares what your system actually generated against what the system should have produced theoretically — day by day.
Perf. ratio
84.2%
30-day average
Clipping
2.1%
of daily yield lost
PR trend
−0.8%/mo
6-month regression
PERFORMANCE RATIO · 30 DAYS
- Inverter CSV data import
- Performance ratio tracking
- Soiling losses in kWh and €
- Actual vs expected yield
Know your
system.
Data-backed decisions your panels never had before.
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 in the background using local weather, air quality, and your panel specs.
Your first report in minutes.
A few minutes after setup, your dashboard shows your soiling level, financial impact, and whether it is time to clean. 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