Because fiber lines don't carry electricity, your ONT (Optical Network Terminal), router, and WiFi equipment need to be powered. When the electricity goes out, your home devices shut off, taking your connectivity with them, even if the fiber network is still operating. Fiber internet, renowned for its speed and reliability, often sparks questions about its operational requirements. A common one is: does fiber internet require electricity? The straightforward answer is yes, but the nuances are important. What equipment is needed for fiber optic internet? What Equipment is Needed for Fiber Optic. This means you don't need a specialized modem-router device, but your router must support high-speed Ethernet input.