In this very basic solar panel wiring installation tutorial, we will show how to connect a solar panel to the AC load through UPS/Inverter, charge controller. Here's a comprehensive step-by-step guide on how to install and wire a PV inverter correctly: Before starting the installation process, it is essential to ensure that the inverter model, specifications, and accessories match the purchased product. First, you need to figure out how much solar power you require. To do that, sum up the power consumption of all the. Connecting a photovoltaic (PV) inverter to a power system is a critical step in solar energy installations. Wiring in series increases the voltage, while wiring in parallel increases the current.