| Abstract [eng] |
The ongoing transformation process in the electricity industry is influencing the development of solar power plants. The transformation process has been influenced by the rapidly changing regulatory environment and the government’s promotion of energy efficiency. Companies use power incentives to install power plants from renewable energy sources, which generate electricity and cover part of the electricity consumed. By connecting power plants to the electricity distribution network, companies can choose how they will pay for the electricity consumed and supplied to the grid. Billing is defined and regulated by the Electricity Producer and Consumer Connection Description and The Rules for electricity supply and use. Thus, the aim of this work is to investigate the cost-effectiveness of electricity producers up to 500 kW capacity utilization of electricity networks. In the methodological part, a methodology is distinguished, which allows to perform economic evaluation of renewable energy sources power plants installed in enterprises. The economic value of renewable energy sources implementation is performed in the part of the research, which aims to determine the benefits that the installed renewable energy sources power plants will bring to the companies. The analysis shows that companies that choose the production method of the producing consumer save less than companies that choose to sell the excess electricity at the market price. In cases where companies fail to conclude a contract for the sale of electricity and sell the surplus electricity produced at a market price or higher and have to give e-mail energy into the grids free of charge, it is necessary to perform detailed calculations and assess what production method is produced by the consumer, or the transfer of surplus electricity to the e. networks, further reduces the company’s electricity costs. Also, in order to become a generating consumer, it must be borne in mind that electricity can only be paid for at one time zone tariff, so when companies change tariff and want to recover "stored" electricity from the distribution network, this will not always be an effective choice. |
