PoE works really well, data and power over a single ethernet cable for various low voltage devices. I have PoE powering network switches, WiFi access points, doorbells, cameras and raspberry pis.
The main problems is high amperage required to get the same wattage and the difficulty to change voltage with dc; coming from someone that has a small workshop running out of 12v dc from solar panels and batteries
We could make low voltage DC wiring a thing inside homes.
PoE works really well, data and power over a single ethernet cable for various low voltage devices. I have PoE powering network switches, WiFi access points, doorbells, cameras and raspberry pis.
The main problems is high amperage required to get the same wattage and the difficulty to change voltage with dc; coming from someone that has a small workshop running out of 12v dc from solar panels and batteries
It depends on what you’re running, but I used to work for a low voltage lighting company. We did mostly 24vdc.