Today, the electricity sector faces many challenges, one of which is the reduction of greenhouse gas emissions and the transition to low-carbon electricity production. The thesis analyses the potential of low-carbon technologies such as renewable energy sources and nuclear energy. As part of this work, it is examined how such technology affects reliability of power system operation with the help of reliability indicators "Generation reserve margin", which gives us the relationship between the installed power of the system and the peak of electricity consumption, and "Loss of Load Expectation", which refers on the probability of loss of electricity supply. LOLE will be especially important, which will give us the number of hours in the year when production will not be able to meet demand with the help of electricity consumption forecasts. We will design several scenarios of the low-carbon electricity sector and look at how its composition affects the mentioned reliability indicators. Using the calculation of the indicator depending on the import of electricity, we will also describe the ability to be self-sufficient. The results and findings will contribute to a better understanding of how the low-carbon transition affects reliability, which can serve as a starting point for creating a plan for a future power system that will be reliable and emit minimal emissions.
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