by Devil » Tue 19 Jul 2005, 07:55:15
Actually the energy is not negligible. The energy input in a typical 3-mile long lightning channel is estimated to be one billion to ten billion joules. Now, if that could be captured and stored, then, on an average, it could keep an average US/European household in electricity for a couple of months or so. As there are ~3 billion lightning flashes/year in the world, it is easy to see that the total energy dissipated as heat is, say, 10^19 joules or 2.8 trillion kWh or the output of about 285 nuclear power stations over a year. If only...!
Devil