You have to be careful with powerline, because plugging a new device into your power system may completely kill your network. When engineers design home appliances they do not assume that your power wires are used to transmit data, so their appliances can add all kinds of noise over the power wires.
For example, the inverters of solar panels are known to kill powerline networking.
For example, the inverters of solar panels are known to kill powerline networking.