[G6Tanuki]

From what I can work out, it's a pulsed system in which pulses can contain a 'preamble' of digital data that tells a device connected to the system "this pulse of power is for you". So you can send power to specified devices.

It also has the benefit that being essentially a mix of SELV and addressability, the voltages are such that the cabling/installation can be done by unskilled staff rather than qualified electricians.

Ideal for things like LED lighting, or the sort of 'check-in kiosks' you find in hotels, the "your train has been delayed by 35 minutes" annunciator panels in train/bus-stations etc.

Now, if someone can only develop Power-over-Fibre......