In Polish generation industry, lignite has been for many years a strategic fuel. It is evidenced by 8833 MW capacity installed in lignite-fired power plants and by annual electricity generation of 48.9 GWźh. This capacity constitute 25.4% of total generating capacity installed in Polish power plants and 37.3% of total electricity production is generated in there. The reserves in presently active lignite mines ensure full maintaining of present lignite production level for another 20 years or so and after that, lignite production will progressively be ceased for next twenty years as a result of exhaustion of reserves in particular mines. To prevent deprivation of nearly 40% of lowest cost-expensive electricity in our economy it is necessary to start works concerning the management of tremendous lignite reserves in the Legnica region. The activities in this area should result from perspective programme of energy policy in this country that has not been developed since more than ten years by the bodies responsible for Polish economy. The economic activities of power generation industry based on lignite depend also on legal regulations regarding rules of land classification for surface mining of lignite. The next issue which must be solved to provide a correct assessment of exploitation efficiency for deep-seated lignite deposits is determining legal acts that ensures adequate funds during exploitation for the management and reclamation of post-mining areas.