Large power plants are used for the economic generation of energy. The capacities of individual generator sets have recently risen. In many countries generators are manufactured in the range of 10 MW, 210 MW and 500 MW. The generating station is now not necessarily located in the cargo centers. In fact other factors such as the availability of fuel and water play a more dominant role in the selection of sites for thermal power plants. Hydroelectric stations are obviously only found at places where water is available in sufficient head. An extensive network of transmission systems has been created so that the energy generated in a station can be fed to the network system and can be distributed over large areas and number of states. The transmission and distribution system comprises a network of three-phase circuits with transformation and / or switching substations at the various junctions.
When people talk about the electric power industry, the focus of the conversation is usually on the power generation side of the business or on utilities. The power generation side examines the extraction of fossil fuels, alternative energy generation, oil spills, carbon emissions and nuclear power. The utilities side focuses on the customer-oriented delivery side of the company, from electricity bill surcharges to outages in our electricity supply.
A third part of the energy and energy industry is the transmission and distribution space (T & D), an important group of industries that include the production of machinery, power lines and transformers, as well as line management systems - Grid ") that improve efficiency. These are responsible for the actual "delivery" of electric energy, regardless of the source of generation, whether solar, gas, oil, wind or otherwise, to commercial, private and industrial users in a usable format.