PV Calculations is an Android app developed by Ettore Gallina that aims to simplify and streamline the process of calculating various aspects of photovoltaic systems. Designed for both professionals and enthusiasts, this app offers a range of features to optimize the utilization of solar energy.

The app covers a wide range of calculations, including the efficiency of solar panels, air mass coefficient, fill factor, sun position, optimal tilt angle, solar radiation on a tilted surface, solar cell temperature, and the effect of temperature on photovoltaic modules. Additionally, it provides tools for compass orientation, tilt measurement, and the sizing of the solar cable for DC power transmission.

PV Calculations also offers assistance in determining the appropriate protection device sizing, string sizing, and inverter selection. It takes into account the decay of photovoltaic panels over the years and calculates the occupied surface area required for installation. Furthermore, it provides information on the hours of daylight throughout the year.

The app also includes a range of resources such as series and parallel solar panel connection methods, module-string-array calculations, and information on solar zenith, azimuth, and declination.

PV Calculations is a comprehensive and user-friendly app that consolidates essential calculations and resources for photovoltaic systems. Whether you are a professional in the field or simply interested in solar energy, this app is a valuable tool to maximize the potential of solar power.