About Photovoltaic Calculations
THE FUTURE IS SOLAR ENERGY. MAXIMIZE YOUR PLANT'S YIELD. Photovoltaic Calculations is the ultimate app for industry professionals, installers, and renewable energy enthusiasts. Design, size, and analyze every aspect of...
THE FUTURE IS SOLAR ENERGY. MAXIMIZE YOUR PLANT'S YIELD.
Photovoltaic Calculations is the ultimate app for industry professionals, installers, and renewable energy enthusiasts. Design, size, and analyze every aspect of your solar plant with precision and speed. Get the most out of your solar panels by optimizing every single component simply and instantly!
MAIN CALCULATIONS AND SIZING:
✓ Photovoltaic panel yield
✓ Air mass index and fill factor
✓ Sun position and optimal tilt angle
✓ Irradiance on a tilted surface
✓ Solar cell temperature and temperature effect on the module
✓ Integrated tools: compass, inclination, altitude
✓ Solar cable ampacity and cross-section calculation (DC)
✓ Protective device sizing and SPD (Surge Protection Device) requirements
✓ String sizing and short-circuit currents
✓ Ideal inverter selection
✓ Photovoltaic panel decay over the years
✓ Occupied surface area and spacing between module rows
✓ Estimation of daylight hours during the year
THEORETICAL AND PRACTICAL RESOURCES:
✓ Series and parallel panel connections
✓ Basic concepts: module, string, and photovoltaic array
✓ Astronomical parameters: solar zenith, solar azimuth, solar declination
Everything you need is packed into an intuitive interface, which also includes a VERY USEFUL FORMULARY always at your fingertips.
Do not leave efficiency to chance, start designing your perfect solar plant today!
Previous Versions
Here you can find the changelog of Photovoltaic Calculations since it was posted on our website on 2023-09-25 11:10:05.
The latest version is 3.2.0 and it was updated on 2026-10-12 20:06:42. See below the changes in each version.
Photovoltaic Calculations version 3.2.0
Updated At: 2026-09-04
Changes: v3.2.0
* New: Module layout
* New: Annual energy production
* New: Annual solar irradiation
* New: Ground-reflected irradiance (albedo)
* New: Table of albedo values
* Mod: "Card" interface in all calculations
* Mod: Coordinates (if entered) are passed to the map
* Mod: Use Wp and kWp units for module power
* Fix: In the calculation of the protection device only the results of the set cables are shown
Photovoltaic Calculations version 3.1.2
Updated At: 2026-08-24
Changes: v3.1.2
* Add: The calculation of the occupied surface area now also takes into account the spacing between modules
* Add: The calculation of the degradation of the panels now also takes into consideration the initial degradation (LID)
* Add: Width and length of the module in the efficiency calculation
* Add: Ability to include azimuth in the optimal tilt calculation
* Add: The azimuth can be expressed with a range of -180°/+180° or with a range of 0°/360°
Photovoltaic Calculations version 3.1.1
Updated At: 2026-07-06
Changes: v3.1.1
* Mod: Improved cache
* Mod: Improved some layouts
* Fix: Main page launched twice
* Fix: Compass rotation when layout changes size
* Fix: Precise location permission required to detect altitude
Photovoltaic Calculations version 3.1.0
Updated At: 2026-05-05
Changes: v3.1.0
* Fix: The application session is now restarted if the process is killed
* Fix: Crash on main page when dialogs with finished activity are shown
* Fix: Minor bug fix
* Mod: Native ads instead of interstitials
* Upd: In-depth language review
Photovoltaic Calculations version 3.0.3
Updated At: 2026-03-16
Changes: v3.0.3
* Mod: Set the resistivity of copper to 0.01851 Ω*mm²/m and of aluminum to 0.02941 Ω*mm²/m
* Add: Guide on safe operating currents for circuit breakers and fuses
* Add: Support for IEC circuit breakers up to 6300A
* Fix: Automatic selection of temperature behind panels when sizing NEC protection device
* Fix: Crash when starting printing from an invalid fragment
* Upd: Macedonian language (by Dragančo Velkov)
* Upd: General update of the languages
Photovoltaic Calculations version 3.0.2
Updated At: 2026-01-12
Changes: v3.0.2
* Add: Full compatibility with Android 16 (SDK 36)
* Imp: The standard is automatically selected (when possible)
* Fix: Invalid context error when getting license from a fragment
* Fix: Minor bug fix
* Upd: Chatbot model updated to Gemini 2.5
* Upd: General update of the languages
Photovoltaic Calculations version 3.0.1
Updated At: 2025-11-10
Changes: v3.0.1
* Fix: Minor bug fix
* Upd: Updated some external libraries
Photovoltaic Calculations version 2.2.10
Updated At: 2025-09-22
Changes: v2.2.10
* Fix: Ads volume
* Fix: English language selection
Photovoltaic Calculations version 2.2.9
Updated At: 2025-08-20
Changes: v2.2.9
* Upd: General update of the languages
Photovoltaic Calculations version 2.2.8
Updated At: 2025-07-15
Changes: v2.2.8
* Fix: Crash on some foldable devices
Disclaimer
Official Google Play Link
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