How it works: Solar panels are photovoltaic (PV) cells. In a nutshell, these special batteries harness sunlight, transform it into energy, then send that energy to an inverter, which converts it into electricity to power the home.
Who to hire: Installing solar panels isn’t as simple as slapping cells on a rooftop. You’ll need to install additional wiring, and panel placement is key to building an efficient system. So this is one that’s best left for the pros