SolarTester

SolarTester is a professional photovoltaic (PV) system simulation and measurement tool designed for worldwide applications. It enables users to predict performance and estimate energy costs for grid-connected solar power projects based on custom installation, operational, and design parameters. Users can simulate PV system output, model shading effects, analyze sun paths, and generate detailed PDF reports on energy generation, losses, and financial factors including payback periods and costs.

Beyond simulations, SolarTester offers real-time measurements of solar irradiance components—global, diffuse, direct, and reflected—using a special hardware add-on sensor connected to your smartphone's audio jack. It also measures the UV index to help users take protective actions against harmful ultraviolet radiation. The extension supports saving and sharing projects with multilingual interfaces in English, Spanish, German, French, and Italian.

Ideal for solar energy professionals, meteorologists, climatologists, and building physicists, SolarTester combines robust simulation features with accurate measurement capabilities to optimize photovoltaic system assessment and performance analysis.