Interesting. It's pretty cool that you can basically have a mobile wired network.
The unfortunate thing about powerline Ethernet is that it really depends on your house's power lines in order for that to work. If you have two separate power connections, a 120v and a 240v I don't think that will work.
Schmide is right, it doesn't mater it's flowing thru your homes wires, the only thing i noticed affecting these is A) appliances (toasters, electric shavers, freezers to name the most common anything that generates static lines on a tube television which lets you clearly see the interference) that generate alot of dirty line noise which interferes with the signal B) anything that cleans up dirty noisy electricity such as surge suppressor & arrestors.
i've run these things out on the frozen lake using a portable 3500w generator between 2-5 fish houses while we video conferenced & voice conferenced and did some card playing on our laptops as well as some classic games the run great on modern laptops such as total annihilation and supreme commander to unreal tournament and unreal tournament 2004 and diablo2 and rarely microsoft combat flight simulator2 and they worked ok, not great, there are alot of factors being dealth with because the generator made alot of line noise when switching the load and ramping up. i have been trying to resolve this with UPS's that are old and cheap and not much of a load and easy to maintain.
the one thing that wrecked the lan was the electric kerosene heater and the electric heaters. i have solved that on my end by getting a portable desktop i-7 with a gtx470 (because chris angelini said they ran hot i specifically bought that one for the purpose of replacing my fish house space heater and because they are dirt cheap on ebay so if the system gets wet and fries i won't cry much and no, i don't keep this any where near the floor where all the water is, have some common sense the only thing traversing the ground is the power extension cords running from the generator strapped to the towing arms of the trailer hitch where the portable propane tanks used to be, and that's because we almost clothes lined a friend on his snowmobile in a snow storm running the cords from roof top to roof top, we forgot snow drifts could form 4 feet high on the middle of a lake randomly and be gone the next day and reappear another day all depending on the weather.)
model used is the linksys plsk-400