Scientific paper ID 2038 : 2020/3

European energy policy is based on a number of measures aimed at achieving an integrated energy market, security of energy supply and sustainable development of the energy sector. Electricity billing costs are important for all industrial, public and household subscribers. The price of electricity in Bulgaria and worldwide is constantly growing. This encourages the search for new ways to supply electricity to sites through renewable energy sources, in order to reduce the cost of electricity. To support this, the report presents measured data needed for calculation by methodology, for the construction of a hybrid energy conversion system for power supply of real consumers of electricity, heat and cold, in which the sun and natural gas are used as an energy source.