Electric energy consumption is the form of energy consumption that uses electric energy. Electric energy consumption is the actual energy demand made on existing electricity supply.Electric and electronic devices consume electric energy to generate desired output (i.e., light, heat, motion, etc.). During operation, some part of the energy—depending on the electrical efficiency—is consumed in unintended output, such as waste heat.
Electricity has been generated in power stations since 1882.[2] The invention of the steam turbine in 1883 to drive the electric generator started a strong increase of world electricity consumption.
In 2008, the world total of electricity production was 20.279 petawatt-hours (PWh). This number corresponds to an average power of 2.31 TW continuously during the year. The total energy used in a thermal power station to produce this power is roughly a factor 2 to 3 higher because the efficiency of generating electricity is roughly 30–50%. The generated power is thus in the order of 5 TW. This is approximately a third of the total energy consumption of 15 TW
Several fundamental methods exist to convert other forms of energy into electrical energy. The triboelectric effect, piezoelectric effect, and even direct capture of the energy of nuclear decay Betavoltaics are used in niche applications, as is a direct conversion of heat to electric power in the thermoelectric effect. Utility-scale generation is done by rotating electric generators, or by photovoltaic systems. A very small proportion of electric power distributed by utilities is provided by batteries.
TOPICS SHOWN -
ELECTRICITY CONSUMPTION
ELECTRICITY USAGE
TOP 20 COUNTRIES WITH MOST ELECTRICITY USAGE
COUNTRIES CONSUMING MOST ELECTRICAL ENERGY
COUNTRIES RANKED ON THE BASIC OF ELECTRICITY CONSUMPTION
NOTE- SCALE OF THE DATA IS Kilowatt hour ( KW/h)
SOURCE INTERNET
MUSIC:BENSOUNDS.COM
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