PV - Solar Power System is an Android app developed by Anwar Ahmed Al-Haddad, which falls under the Business & Productivity category. This free app is designed to help users calculate the necessary elements of a PV solar power system based on loads and panel size. It also allows users to calculate water pump power requirements, tilt PV panels towards the sun using their phone to increase their efficiency, and learn how to connect panels in series and parallel.

The app's interface is user-friendly and easy to navigate, making it accessible to both professionals and novices. The app's main features are its ability to calculate the necessary elements of a PV system and its educational resources, which provide valuable information on solar power systems. The ability to tilt PV panels using your phone is a unique and useful feature that sets this app apart from others in its category.

Overall, PV - Solar Power System is a valuable tool for anyone looking to calculate the necessary elements of a PV system or learn more about solar power systems. Its user-friendly interface and unique features make it a must-have for anyone interested in solar power.