Electricity providers are the quantity of lifeblood in modern society, and an important service. As a result, it allows light and heat into every household with a flick of the switch. Function themselves belong to generational transmission electricity units--they consist in all these processes and on top of that add distribution networks for providing it at home. Technologically, as for these providers: high-tech network management systems makes the supply reliable; smart meters read usage in real time; and a host of new energy sources including wind power or sunlight directly generate electricity. All of these features do more than respond to an increasing thirst for electricity. Their greatest merit lies in promoting the protection of our environment. There is a wide range of their services, from providing services to illuminate residential areas and supplying power driving industrial machinery--these suppliers can be said to satisfy all needs for energy production.