Energy Consumption

Posted on July 21, 2017 By

Energy consumption and global world power used terawatt (TW), between 1965 and 2005. used global power in increasing levels of detail Energy intensity of different economies The graph shows the amount of energy which is necessary to produce a dollar of GNP for selected countries. GNP refers to purchasing power parity in 2004 and 2000 dollars adjusted for inflation. Energy consumption per capita versus the GNP per capita The graph represents the energy per capita against income per capita of all countries more than 20 million people, representing over 90 of the world population. The image shows the broad relationship between wealth and power consumption. GDP and energy consumption of Japan from 1958-2000. The data show a strong correlation between GDP and energy use, but also shows that this link may be broken.After the oil crises of 1973 and 1979 eneg a use stagnated while Japan’s GDP continued to grow, after 1985, under the influence of low oil prices, energy use returned to their historic relationship GDP. TW global energy supply Remaining Oil Decline of the remaining 57 ZJ of oil on the planet. The annual oil consumption in 2005 was 0.18 ZJ. There is significant uncertainty about that data. The 11 ZJ of future additions of extractable reserves could be optimistic. Renewable energy sources worldwide at the end of 2006. Source: REN21 Renewable energy is available. The volume of the cubes represent the amount of geothermal, wind and solar available in TW, while only a small part is recoverable. The small red cube shows the overall energy consumption proportionately. Solar energy as scattered over the planet and radiated back into space.Values are in PW 1015 watts. In this paper, we employ the units, prefixes and magnitudes as the International System Power in Watts or Watts (W) and energy in Joules (J), face to directly compare consumption and energy resources worldwide. One watt is one joule per second. The total world energy consumption in 2005 was 500 EJ ( 5 x 1020 J) (or 138 900 TWh) to 86.5 resulting from the combustion of fossil fuels, although there are at least 10 of uncertainty in these data. This equates to an average power of 15 TW ( 1.5 x 1013 W). Not all the world’s economies track their energy consumption with the same rigor, and the exact energy content of a barrel of oil or ton of coal varies widely in quality.Most of the world’s energy resources come from solar irradiation of the Earth – some of this energy has been stored as fossil energy, another part of it is usable in direct or indirect means such as wind, water or waves. The term solar constant is the amount of incident solar electromagnetic radiation per unit area measured on the outer surface of the Earth’s atmosphere in a plane perpendicular to the rays. The solar constant includes all types of solar radiation, not just visible light. The satellite measurements are around 1366 watts per square meter, but fluctuates by 6.9 over the year – from 1412 W / m in early January to the 1321 W / m in early July, given the changes the distance from the Sun, a few parts per thousand daily.For the entire Earth, with a cross section of 127.4 million km , the power obtained is 1.740 1017 watts, plus or minus 3.5 . The estimates of remaining worldwide energy resources vary, with an estimated total of fossil fuels of about 0.4 YJ (1 YJ 1024J) and some available nuclear fuel such as uranium exceeding 2.5 YJ. The range of fossil fuels is extended to 0.6 to 3 YJ if estimates of methane hydrate reserves are accurate and if you get that its extraction is technically possible. Due mainly to the Sun, the world also has access to a usable energy that exceeds 120PW (8,000 times the total used in 2004), or 3.8 YJ / yr, dwarfing all non-renewable resources.