![]() ↑ 6.0 6.1 Brain, Marshall, and Dave Roos.Wolfson, "Electricity" in Energy, Environment, and Climate, 2nd ed., New York, NY: W.W. The corresponding power loss in the lines decreases by the square of the current, meaning that if the current dropped by a factor of 2, the power loss drops by a factor of 4. ![]() This problem is essentially solved (not completely, but to an acceptable level) by the use of high voltage power lines. The reason that step-up transformers are used is because when travelling long distances through a conducting wire, electricity will inevitably lose energy to resistance. This electricity can flow long distances, with a typical maximum distance being around 500 kilometers. This increase in voltage is accomplished by a transformer. This means that the voltage is increased, with a proportional decrease in the electric current (the amount of electrons that are flowing per second). not able to receive signals from a mobile-phone network Collins English Dictionary. not using public utilities, esp the supply of electricity off-grid living she lived off-grid for six months 2. Electricity exiting the power plant passes through a transmission station where the electricity is "stepped-up". off-grid in British English adjective, adverb 1. main articleĮlectrical transmission is accomplished by the use of power lines. Large high voltage power lines are a crucial component to the grid as they transport electricity with little energy losses. These plants generate lots of electricity and are often far away from the demand for electricity the next system (transmission) solves this problem.įigure 1. Power plants require the energy from fuels such as coal or natural gas, or primary energy flows, such as wind and sunlight in order to do this. The grid consists of countless complex interconnections, however there are three main sections- electricity generation, transmission and distribution.Įlectricity begins in power plants which work to convert mechanical energy of a turbine into electrical energy by the use of a generator (with the exception of solar power, which uses photovoltaic cells to accomplish this). These systems have grown from small local designs, to stretching thousands of kilometers and connecting millions of homes and businesses today. The electrical grid is the intricate system designed to provide electricity all the way from its generation to the customers that use it for their daily needs.
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