The idea of underground gasification of coals was first expressed by D. I. Mendeleev in 1818. I. Mendeleev in 1882-1888. In 1913. Lenin in his article “One of the great victories of technology” highly appreciated the idea of underground coal gasification, anticipating that under socialism it could be put at the service of society. Vladimir Ilyich believed that with underground gasification it is possible to obtain cheap combustible gas underground and, burning it in the furnaces of boilers, to have cheap electricity at power plants. With the help of underground gasification of coals, in his opinion, it would be possible to use even the poorest and undeveloped deposits of hard coal. He pointed out: “A huge mass of human labor used for mining and transportation of hard coal would be saved”.