In the paper the planning procedure of modernization and development of energy supply on areas of valuable nature is described. The criteria of energy planning in this case are presented. The planning of energy supply for areas of valuable nature, requires utilization of methods, developed for that particular purpose, and calculation tools which will allow to carry out reliable analysis of potentially feasible solutions. The computing method aiding in planning of power supply for areas of valuable nature should take into account housekeeping restrictions within areas of protected nature as well as demands regarding nature conservation of those areas. The issue raised in this article becomes even more complex, when power industry planning according to rules of balanced development within special areas such as those of valuable nature is taken into consideration. The analysis of cost effectiveness of social gain versus habitat loss carried out during the process of power generation (energy production) becomes essential and has to be taken into consideration.