A tool designed to help system designers determine the optimal configuration of photovoltaic modules in a series connection, often referred to as a string, helps ensure safe and efficient system operation by considering factors like voltage limitations, current carrying capacity, and environmental conditions. For instance, it can determine the maximum number of panels that can be safely connected in series given the inverter’s maximum input voltage and the panel’s open-circuit voltage at the lowest expected temperature.
Accurate string sizing is critical for maximizing power output while adhering to safety regulations and equipment specifications. Historically, these calculations were performed manually, a tedious and error-prone process. Automated tools streamline the design process, reduce the risk of miscalculations, and facilitate the rapid exploration of different system configurations to optimize performance based on site-specific conditions. This results in more efficient and reliable solar energy systems, contributing to the broader adoption of renewable energy.