The power system of Baltic States is undergoing a radical transformation. An intention to achieve a substantially higher share for renewable energy sources, going along with displacement of traditional generation sources that no longer conform to environmental requirements, will lead to a major structural changes of the power grid. These changes will take place simultaneously with desynchronization of the Baltic power grid from the Unified Power System of Russia and synchronization with the European Network of Transmission System Operators power system. It is expected that existing and future planned transformations may pose additional challenges to system operation, particularly, when system is exposed to extreme events. In this paper we evaluate an effect, the future planned configuration of the Baltic power grid has on system resilience. A practical method of evaluation of the system resilience when transiting from undisturbed state to a degraded one presented in the paper.