The article discusses grid-connected solar PV system, focusing on residential, small-scale, and commercial applications. A grid connected PV system is one where the photovoltaic panels or array are connected to the utility grid through a power inverter unit allowing them to operate in parallel with the electric utility grid. It covers system configurations, components, standards such as UL 1741, battery backup options, inverter sizing, and microinverter systems. And guess what? It's not just for eco-warriors anymore.