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About Optimal Tilt Angle for PV System (Free App)

* Simple and accurate determination of the optimal PV tilt angle. Make your PV System generate maximum electricity for your desired location. The wrong position of your PV System can cause losses in electricity generation and your project feasibility may be a question.


*** With this App you gain:
- Optimal Tilt angle for any desired location on the map
- Optimal orientation
- Optimal daily tilt angle
- Optimal monthly tilt angle
- On-site inclinometer for measuring angles
- More Solar Analytics tools for analyzing PV System
- Map compass for accurate determination of roof (field) azimuth
- Satellite map view


The tilt angle of the panels is one of the most important parameters for your PV system. It is the angle at which the photovoltaic panels are set to face the sun relative to a horizontal position. The panels must have appropriate tilt angle set for gaining maximum possible electricity from your PV system for your location. Optimal Tilt is using optimization model for obtaining the most ideal tilt angle of your panels in order to gain maximum electricity generation from your system.


The model is based on sophisticated methods for maximizing energy yield with finding the best performance for any desired location.


The additional tools and apps that can help you optimize your PV System and check the performance including financial benefits.

What’s new

Version Optimal Tilt v2.6.31 · Updated August 30, 2026

✔ Added live solar tracking tool with hourly sun azimuth and altitude for any day ✔ Bug fixes. ✔ Performance improvements. Thank you! PV Solcast www.pvsolcast.com

User reviews

Ben Williams
Ben Williams
Simple app.... some ads but remember... it's free!!!! Would be good if the inclinometre was part of the front screen but for lining up your 1st panel... good enough. Remember to average the entire year using the monthly figures and you are good to go.
Univerciel Univerciel
Univerciel Univerciel
Very accurate i did the math
Donny Collins
Donny Collins
Easy to use
Daniel carmona
Daniel carmona
Item works as described
Al Burken
Al Burken
Your app is a big help for anyone that's mathematically challenged. Thanks for the helpful app.
Asif Muhammad
Asif Muhammad
Excellent App ever used.

Alternatives to Optimal Tilt Angle for PV System (Free App)

Looking for apps like Optimal Tilt Angle for PV System (Free App)? Here are 3 similar Android apps on Google Play. The highest rated is SolarEdge Monitoring (4.3/5), and all 3 are free to download.

Optimal Tilt Angle for PV System (Free App) vs. alternatives
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Optimal Tilt Angle for PV System (Free App) 4.6 / 5 Free 100,000+ Aug 30, 2026
OpenSolar 3.2 / 5 Free 10,000+ Sep 2, 2026 Compare
SolarEdge Monitoring 4.3 / 5 Free 500,000+ May 24, 2020 Compare
Solar.web 2.6 / 5 Free 1,000,000+ Sep 30, 2026 Compare

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