This step-by-step guide will help you navigate each stage of the installation process. This article walks you through the basics of PV system installation, focusing on the practical steps from mounting modules to connecting the inverter to the electrical grid, and emphasizes the importance of ongoing maintenance to optimize system performance. PVWatts ® is a registered trademark by. Solar projects are making it easier for Americans to choose solar energy to power their homes. A photovoltaic system does not need bright sunlight in order to operate. It can also generate electricity on cloudy and rainy days from reflected sunlight. It consists of an arrangement of several components, including solar panels to absorb and convert sunlight into electricity, a solar.