Mining becomes really attractive when large quantities of miners are bundled together in order to make the calculations faster and faster and to be the first to receive the reward. Bundling of hundreds to thousands of miners is called a miningfarm. In countries such as Iceland, where electricity is relatively cheap and the temperature does not often exceed 15 degrees, large miningfarms of Bitmain, Moonlite and Genesis Mining, among others, establish themselves.

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