solXpect – Forecast the output of your solar power plant

solXpect is a free and open-source photovoltaic system (PV) or balcony PV system output forecast application for Android platform, developed by woheller69 from Germany. It uses direct and diffuse radiation data from Open-Meteo.com, provides precise calculations of the sun's position and projection of radiation onto your solar panel, and takes the shading and temperature coefficient into account.