За електричната енергија во служба на човековите потреби, биле потребни векови и упорно и постапно откривање низа електрични појави.
in service of human needs, centuries were spent and continuous and gradual discoveries of series of electric phenomena. When was the time electricity first was mentioned, it is hard to tell. People long ago have noticed and were fascinated by natural phenomena like lightning, thunder and the like. Supposedly, the Ancient Greek philosopher Thales of Miletus (around 600 BC) was the first who wrote down that rubbing a piece of amber with fur attracts hair, wool, wood chips. The human desire to understand nature continues.
around 1600, the English doctor William Gilbert noticed that other objects, like glass and wool by rubbing get the same characteristics as amber. Gilbert says that they have been electrified. And not by coincidence, the Greek amber is called electron.
In the period from the 17th century until the end of the 19th century
major discoveries were made – distinguishing conductors from insulators, positive and negative electricity, galvanic effect, electric arc, electromagnetism and electrodynamics, electromagnetic induction, electrolysis law, direct current electric motor, carbon fiber lamp, law on maintaining energy stability.
The real tuning point was the discovery of the generator for direct current, which marks the era of electrification of the world. In the last two decades of the 19th century the boom in the field of electric energy occurs, starting with the first ever built power station for direct current in Paris in 1880 for lighting a specific area of the city. After that follow the Edison plant in New York in 1881, that served around 3000 lights for 59 customers with few generators, the London plant in 1882, the Berlin plant 1883. In Rome in 1886, the first electric power plant for alternating current was built. In the 90s of the 19th century, thousands of power plants were built in the USA and in Europe, mainly for lighting.
The development continues. With the genius discoveries and patents by Nikola Tesla conditions were created for transmission of electricity on large distances. In 1891 the first power line of 175 km, for transmitting three-phase alternating current from the hydroelectric power plant in Laufen (Germany) to Frankfurt am Main, based on the Tesla system, was constructed.
on Niagara, USA, the first hydro power plant, created based on the Tesla patents, was put into operation with three generators with installed power of 3700 KW. Electricity was transmitted at a distance of 35 km to the city of Buffalo, where in was used in the aluminum industry. The construction and start of this hydroelectric plant is considered to be the beginning of the revolution in the electrification of the world.