The way solar panels are connected significantly affects the performance of your solar system. Panels can be wired in series or in parallel. In a series-connected system, the entire circuit performs based on the weakest panel, which can be especially problematic if one panel is shaded. For instance, shadows from a chimney or tall tree can negatively impact the overall output. In contrast, parallel connection allows each panel to operate independently through a micro-inverter per panel. This setup is ideal for situations with significant shading or multiple light exposure profiles. For optimal performance, it’s advisable to connect panels in parallel using Enphase micro-inverters installed under each panel.