Photovoltaic Calculations

Contains adsIn-app purchases
4.1
213 reviews
50K+
Downloads
Content rating
USK: All ages
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About this app

Photovoltaic systems represent the future, this app brings together simple and quick calculations to make the most of solar energy.

Main:
Efficiency of solar panels, Air mass coefficient, Fill factor, Sun position, Optimal tilt angle, Solar radiation on a tilted surface, Solar cell temperature, Effect of temperature on the photovoltaic module, Compass, Tilt, Size of the solar cable (DC), Protection device sizing, String sizing, Short-circuit current of strings, Choice of inverter, Decay of photovoltaic panels over the years, Occupied surface, Hours of daylight during the year.

Resources:
Series solar panels connection, Parallel solar panels connection, Module - string - array, Solar zenith, Solar azimuth, Solar declination.

The app also contains a very useful form.
Updated on
7 May 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Financial info, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.1
210 reviews
Rick Bello
14 October 2023
I like the app but some of the language should be more consistent with the NEC. Perhaps the developer is IEC based in which case I apologize, but let's call a PV output circuit feeder what it is defined as by the NEC 690 definitions not a sub array cable. I design solar for a living but can't make any use out of the fuse sizing tool. Easier to do with a normal calculator. Rooting for the devs here and like a lot of what this app offers. Just want to see it be even better.
2 people found this review helpful
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Ettore Gallina
18 October 2023
Hello, thank you very much for your comment and review. Hello, thank you very much for your comment and review. Yes we use IEC, if you want to give us suggestions regarding the NEC standard contact us at our email address.
Dragančo Velkov
3 September 2024
excellent application, keep working and make better and better
1 person found this review helpful
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Ettore Gallina
4 September 2024
Hello, thank you immensely for your comment and review.
Alan Paardenkooper
14 September 2024
Really useful calculating array fusing requirements according to the IEC standards.
1 person found this review helpful
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Ettore Gallina
16 September 2024
Hello, thank you immensely for your comment and review.

What's new

v2.2.5
* Upd: Portuguese [Brazil] language (by Isaias Alves)