Abstract

Globally, approximately 44 TW of geothermal heat is transferred through convection from the earth’s core to the surface. The largest portion of this heat (30 TW) is generated by radioactive decay in the core and mantle of the Earth. The difference (14 TW) indicates continuous cooling of the Earth, mainly through the oceans. The Kardashev Scale classifies a Type 1 civilization’s energy consumption to be estimated at 40 TW, capable of harnessing the energy of its planet. In comparison, earth’s electrical energy generation in 2019 was estimated at about 7.5TW. The Kardashev Scale was later modified and expanded by Ćirković and Michio Kaku to include an additional requirement that earth as a Type -1 civilization must control the crust of the planet (eliminate earthquakes). Research shows that the energy available within 80km on both sides of the 80000km long oceanic ridges of this planet is estimated at approximately 10TW. Indications from the only oceanic ridge geothermal harvesting example in Iceland are that it may delay large earthquakes, implying a reduction in crustal movement. If the future engineering and construction technology is advanced enough, it could be possible to harvest a significant amount of geothermal energy at oceanic ridges deep below the ocean’s surface and reduce seafloor spreading, which is one of the main drivers behind plate tectonics and earthquakes: - A benefit while harvesting a significant amount of clean renewable energy, the energy of the planet

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