Optimal Tilt Angle - PV System

NRG Labs

Contains adsIn-app purchases

About this 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 the solar tools we have optimized more than 520.000 Photovoltaic Systems worldwide, including rooftop solar, ground mounted PV Systems and large-scale photovoltaic power plants. Our tools are trusted by more than 170.000 satisfied users. Play Store rating: 4.8.

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
- Live Solar Tracking tool with hourly sun azimuth and altitude for any desired day, worldwide
- Ideal tilt angle for any desired azimuth (premium feature)
- On-site inclinometer for measuring angles
- More solar 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 can help you optimize your PV System and check the performance including financial implications.

email: [e-mail]
website: www.pvsolcast.com

Ratings and reviews

The app seems ok, it can tell where I am, but it doesn't seem to give me the best angle for this time of year. Update: correction, best angles are listed in the menu under monthly tilts. Update: as I've become more familiar the app, the better I'm able to utilize it. Thanks!

App is useful only if we select location on map, on its own won't show the correct tilt or when it is first launched after giving permission to location, wish inclinometer button appears on the clock type inclinometer page.

I used this app to set up my solar panels while camping. Very convenient and accurate.

What’s new

✔ 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