Electric Energy Consumption
{"Image DocumentName": "Electric Energy Consumption", "Image ImageDescription": "Consumption of electric energy is measured in watt-hours (written W\u00b7h, equal to Watt x Hour) 1 W\u00b7h = 3600 joule = calorie. Electric and electronic devices consume electric energy to generate desired output (i.e. light, heat, motion, etc.). During operation, some part of the energy is consumed in unintended output, such as waste heat. See Electrical Efficiency . In 2008, the world total of electricity production and consumption was 20,279 TWh (terawatt-hours). This number corresponds to an average consumption rate of around 2.3 terawatts continuously during the year. The total energy needed to produce this power is roughly a factor 2 to 3 higher because the efficiency of power plants is roughly 30-50%, see Electricity generation. The generated power is thus in the order of 5 TW. This is approximately a third of the total energy consumption of 15 TW, see World energy consumption TWh (83%) of electric energy was consumed by final users. The difference of 3464TWh (17%) was consumed in the process of generating power and consumed as transmission loss and all most consumed at misuse.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}