This Regulation of the Minister of Economy, which is composed of seven Paragraphs, establishes that the power company involved in the turnover of electric energy or heat is obliged to purchase, in compliance with the conditions hereby defined, regardless of the amount of installed power and relevantly to the scope of economical activities conducted, the electric energy or heat acquired from non conventional and renewable sources connected to the common grid, particularly the electric energy or heat acquired from: hydroelectric power plants; wind turbines; biogas, particularly if acquired from: animal waste processing installations, sewage treatment plants, municipal waste dumps; biomass; bio-fuel; solar photo-voltaic cells; heat-producing solar energy collectors; geothermal heat. The power company involved in the transmission and distribution of heat is obliged to purchase the heat acquired from non conventional and renewable power sources connected to the heat network managed by the particular company if: the transmitted heat is not a subject to turnover; the amount of heat offered for sale had not been purchased in total by the power company involved in the turnover of heat transmitted by the particular network.