Kuzbass governor proposed placing data centers in spent coal mines Placing data processing centers in depleted coal mines will help support the coal industry and increase the level of facility security, Kemerovo Region Governor Ilya Serdiuk said in a speech at the session of the Russian Energy Week. "Data centers can be located in exhausted open mines, in the quarries of our coal plants, which today coal miners must reclaim, fill, improve," he said. "It is, roughly speaking, such a big hole, 300 meters deep.