Electricity is a very convenient way to transfer energy, and it has been adapted to a huge, and growing, number of uses.
The invention of a practical incandescent light bulb in the 1870s led to lighting becoming one of the first publicly available applications of electrical power.Although electrification brought with it its own dangers, replacing the naked flames of gas lighting greatly reduced fire hazards within homes and factories. Public utilities were set up in many cities targeting the burgeoning market for electrical lighting. The resistive Joule heating effect employed in filament light bulbs also sees more direct use in electric heating.
While this is versatile and controllable, it can be seen as wasteful, since most electrical generation has already required the production of heat at a power station.A number of countries, such as Denmark, have issued legislation restricting or banning the use of resistive electric heating in new buildings.
Electricity is however still a highly practical energy source for heating and refrigeration, with air conditioning/heat pumps representing a growing sector for electricity demand for heating and cooling, the effects of which electricity utilities are increasingly obliged to accommodate.Źródło: https://en.wikipedia.org/wiki/Electricity
It is also unnecessary, since the most common electrical services are provided within the city, or other specific area.
Many electricians use, but with all sorts of advertising opportunities.
Currently, in addition to placing the appropriate printing on trucks, which move electricians, it is also popular free opportunity to advertise their services by setting up a website which deals with the activities of electricity.