Using the electric utility to provide Internet access. Also called "power line communications" (PLC), high-frequencies carrying data are superimposed over the low-frequency waves on the electrical transmission lines. It gives customers high speed Internet access through electrical networks. Lower costs are achieved because the service is implemented on standard electrical lines. The service is also convenient because it's already in your home or offices.
Combined with a Cable/ADSL router and using existing AC wiring, it allows for all your computers to share files, printers, and most importantly your DSL/Cable connection. It can also be used to expand a wireless network into a "dead zone", as wireless signals cannot penetrate thick walls or reach down to basements. Not only is PLC applicable to your business its also manageable; where there is an electrical plug outlet, there is a connection point!