This article or section appears to contradict itselfon the power and energy contained in a lightning strike. Please see the talk page for more information.(August 2017)
Since the late 1980s, there have been several attempts to investigate the possibility of harvesting lightning energy. A single bolt of lightning carries a relatively large amount of energy (approximately 7 gigajoules[1] or about the energy stored in 38 gallons or 172 litres of gasoline). However, this energy is concentrated in a small location and is passed during an extremely short period of time (microseconds[2]); therefore, extremely high electrical power is involved.[3] 5 gigajoules over 10 microseconds is equal to 500 terawatts. Because lightning bolts vary in voltage and current, a more average calculation would be 10 gigawatts.[4] It has been proposed that the energy contained in lightning be used to generate hydrogen from water, to harness the energy from rapid heating of water due to lightning,[5] or to use a group of lightning arresters to harness a strike, either directly or by converting it to heat or mechanical energy,[citation needed] or to use inductors spaced far enough away so that a safe fraction of the energy might be captured.[6]
^"Could you power a city with lightning?". physics.org. Retrieved 1 September 2011.
^Yasuhiro Shiraishi; Takahiro Otsuka (September 18, 2006). "Direct measurement of lightning current through a wind turbine generator structure". Electrical Engineering in Japan. 157 (4): 42. doi:10.1002/eej.20250. S2CID 110075189.
^"The Electrification of Thunderstorms," Earle R. Williams, Scientific American, November 1988, pp. 88–99
^Dvorak, Paul. "How Much Power in a Bolt of Lightning". Windpower. Retrieved 1 October 2016.[dead link]
^Knowledge, Dr. (October 29, 2007). "Why can't we capture lightning and convert it into usable electricity?". The Boston Globe. Retrieved August 29, 2009.
^Helman, D.S. (2011). "Catching lightning for alternative energy". Renewable Energy. 36 (5): 1311–1314. doi:10.1016/j.renene.2010.10.027.
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