Worth to know
The electric power industry is the generation, transmission, distribution and sale of electric power to the general public. The electrical industry started with introduction of electric lighting in 1882. Throughout the 1880s and 1890s, growing economic and safety concerns lead to the regulation of the industry. Once an expensive novelty limited to the most densely populated areas, reliable and economical electric power has become a requirement for normal operation of all elements of developed economies.
By the middle of the 20th century, electric power was seen as a "natural monopoly", only efficient if a restricted number of organizations participated in the market; in some areas, vertically-integrated companies provides all stages from generation to retail, and only governmental supervision regulated the rate of return and cost structure.
Since the 1990s, many regions have opened up the generation and distribution of electric power to provide a more competitive electricity market. While such markets can be abusively manipulated with consequent adverse price and reliability impact to consumers, generally competitive production of electrical energy leads to worthwhile improvements in efficiency. However, transmission and distribution are harder problems since returns on investment are not as easy to find.
Many electricians providing electrical services, such as repair of electrical installations requires reliable and proven place where they could procure the necessary materials such as, for example, cables or wires. Therefore, many people in the industry decides to cooperate with the wholesale of electrical materials. Without the proper equipment electrician it is not yet able to perform even the simplest repairs requiring hardware replacement. Wholesale materials allow electrical supply is needed in these articles; mediate between the manufacturer and individual customers.
Control of electricity in large plants
Electricians are very necessary personnel especially in large industrial plants. With such a huge production, reaching sometimes up to tens of tons per day, continuous supervision of the relevant parameters of devices working in the production plant is necessary. It allows not only to maintain the proper functioning of electrical appliances and any other, but also a very quick response when a possible failure. Many equipment manufacturers have to be plugged in to be able to work freely, and therefore supervision electrician on a given device is necessary.