| Abstract [eng] |
Generation of renewable resources in Lithuania is growing unstoppably, but at the same time this process causes its problems. Integration of renewable sources, balance of electricity flows and reliability of systems are only a few of many problems caused by renewable sources. The Clean Energy Package accepted by Europe Union lets to regulate the energy sector laws once again, while creating new technology areas. The purpose of this work is to analyze dynamic price and hybrid power plants impact to Lithuania's electricity market. Renewable energy system of Kaunas University of technology was chosen as a research object. Firstly, the aim of this work is to clarify new possible applications of measures to Lithuanian electricity market, that now are possible after accepted Clean Energy Package. Second aim is to examine the technical paraments and application possibilities of different energy storage devices. Third aim is to apply energy storage system and dynamic price to the system of renewable sources of Kaunas University of Technology and to analyze their impact on electricity bills. Also, to calculate the economic indicators as of the new measures that are implemented as a single project, and to perform a cost-benefit analysis. And, of course, to evaluate the future possibilities of measures, that were adopted after the Clean Energy Package. In this work, in order to solve the set tasks, a literature analysis and a statistical mathematical model with comparative analysis are performed. The research work models a situation when an energy storage system is added to the already existing renewable energy sources installed in the research object, and also a dynamic price tariff is applied. The literature analysis showed that the most suitable energy storage for the studied object is lithium-ion batteries. After applying the energy storage and the dynamic electricity price tariff to the system of renewable sources of Kaunas University of Technology, it can be concluded that both technologies allow to reduce electricity bills. A cost-benefit analysis has shown that both measures, as a single project, have suitable economic performance for investment. Evaluating there measures separately, energy storages, in contrast to the dynamic price measure, is so far financially inefficient. After having evaluated the future possibilities of the measures adopted under the Clean Energy Package, it is concluded that dynamic prices could fluctuate in a larger amplitude than the prices chosen to model the situation. Electricity storage devices (lithium-ion batteries) cause significant economic benefits, which would allow to consider the country’s support model and thus encourage consumers to install energy storage devices in the future. Also, the price of lithium-ion batteries is forecast to decrease by 2050, which will also encourage their integration into the electricity market in Lithuania. |
