The Konin lignite mining and power generation basin relies on the Konin Mine and the two power plants included in ZE PAK S.A. In previous years, the mine produced over 550 million tons of lignite, initiating exploitation at 10 open pits. However, the current resources of lignite in active open pits (amounting to about 100 million tons) are enough to supply work in the Konin basin for a little more than 10 years. Therefore, the strategic prerequisite for the extension work in the basin is the development of new lignite deposits in a very short time, and the total restoration of the power units in the Konin power plants. Among the prospective deposits located in the vicinity of the currently used areas are the following deposits: Ościsłowo, Mąkoszyn-Grochowiska, and Dęby Szlacheckie. Additionally, in determining the development of the mining and energy basin in Konin, the Piaski deposit can also be included, on which the future of the basin in Adamów may be based. Broadening the resource base of the Poniec-Krobia and Oczkowice deposits with pre-defined industrial resources of about 600 million tons opens up entirely new possibilities to extend the life of the Konin lignite mining and power generation basin. It should be noted that the Poniec-Krobia deposit has been characterized by a small number of prospecting holes and its resources are defined as resources in sight. To make a more detailed analysis of the possibilities for its use, it is necessary to carry out specific geological works. The initial development concept for these deposits has shown that their resources can be used to produce electricity in modern power units for supercritical or ultra-supercritical parameters with a capacity of 2,200–2,500 MW, with annual coal production of 13 million tons. In such a case, the life of the entire mining and energy lignite basin could be extended for another 50 years.