power line to ethernet

This is a developing area. It takes a lot of sophistication to put signals over ANY powerline. First, it is stopped by the transformers. Second, it is shared with anyone on the same transformer. Third, you do not want to think about lightening. Fourth, it is as or more challenging than cell phones in the city and uses the same sort of Code Division Multiplexing.

Think about what happens to the anntenna properties of your power lines in your house when you ... turn on the toaster. - RM