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Your solar advisor

Know what your panels are really earning you.

Helios turns weather, air quality, and your panel specs into one clear answer: how your system is performing and what to do about it.

Start free — takes 3 minutes

No credit card. No inverter data. Just your postcode.

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Your panels this week

Soiling building up

Soiling ratio

0.912

8.8% loss

Daily loss

1.24 kWh

≈ €0.30

Since last clean

€34.60

47 days

Last cleaned

2 Jan

47 days ago

You invested thousands in solar. Do you know if it's paying off?

Most solar owners check their app, see numbers, and hope for the best. Helios gives you the financial picture — what soiling is costing you, when cleaning makes sense, and whether your system is actually delivering what it should.

What Helios does for you

Three ways your solar investment becomes visible.

Clean when it pays off

Helios tracks soiling losses day by day 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.

  1. Tell us about your system

    Enter your location, panel capacity, and electricity tariff. Takes less than 3 minutes.

  2. We analyse your environment

    Our model runs overnight using local weather, air quality, and your panel specs.

  3. 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.

Every Monday, 08:00

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

To: you@example.com

Weekly solar report — My Home Solar

Status: Soiling is building up

Soiling ratio: 93%

Trend: worsening

Weekly loss: €0.84

Manage in Settings → Notifications

Your panels have a story to tell.

Set up in 3 minutes. Free forever for core features. No card, no inverter data — just your postcode.

Meet your solar advisor