English Abstract: The increasing use of renewable energy sources is of great importance in the light of the imperatives … renewable energy sources is related to the existence of economic incentives for their growing use. In the group of economic … stimuli to the increased use of renewable energy sources, the central place belongs to the obligation to purchase electricity …

English Abstract: The increasing renewable source usage and energy efficiency enhancement represent the key aims of the … energy sector's development in EU countries. The purpose of their implementation is at the same time the creation of the … source usage and energy efficiency enhancement must be viewed from the perspective of the manifestation of economic …