Solar Stack
Solar Stack
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Solar Stack

Free solar panel & inverter compatibility checker. Verify your PV string configuration is safe before installation.

Tools

  • Calculator
  • Panel Matcher
  • Inverter Finder
  • Inverter Compare
  • Panel Replacement
  • Cable sizing

Resources

  • Guides
  • How it works
  • Standards & Compliance
  • Data API
  • Replacement methodology
  • Add Equipment
  • Feedback

Legal

  • About
  • Support
  • Privacy Policy
  • Terms of Service
  • Cookie Policy

© 2026 Solar Stack

Help and Support

Help with Solar Stack — the website and the apps for iOS and Android. You can write to us in any of the site's languages.

Contact us

Email
Questions, problems with the app or the site, or anything that looks wrong. For the app, mention your phone model and the app version.
support@solar-stack.com
Feedback form
The same message, without opening your mail app.
Open the form
Your data
Requests to access, export or delete your personal data.
privacy@solar-stack.com

Common questions

The app cannot load the catalogue
The first time it opens, the app confirms with Apple or Google that it is the genuine app on a genuine device, so it needs an internet connection. The check can fail on a phone with a modified operating system or on a copy not installed from the App Store or Google Play. If the error persists on an ordinary phone with a working connection, email us your phone model and the app version.
A specification looks wrong
Email us the model and, if you have one, a link to the manufacturer's datasheet; signed-in users can also report the error from the model's page on the website. We check every report against the datasheet and correct the catalogue.
A panel or inverter is missing
Send us its datasheet: upload the PDF on the website's “Add Equipment” page (this needs an account with a confirmed email) or attach it to an email. We review it and add the model to the catalogue.
How do I delete my data?
The apps have no accounts. Their only record is a device record that is not linked to your name or email, and uninstalling the app destroys the key it belongs to. A website account and everything saved in it can be deleted in Settings, or write to privacy@solar-stack.com.

Legal

How we handle your data and the rules for using the service:

  • Privacy Policy
  • Terms of Service