Whole home surge protection works by diverting excess voltage and current from electrical surges away from your home's electrical system. It typically involves the installation of a surge protection device, which is placed at the main electrical panel. The device monitors the incoming electrical supply and detects any voltage or current surges. When a surge occurs, the device diverts the excess energy to a grounding wire, which safely dissipates the energy to the ground. This helps protect all of the electrical equipment in your home from damage caused by power surges.