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One of the most important preparation steps towards synchronisation – the Baltic power system isolated operation test will take place in 2019. The isolated test is the one of the main action, identified in the Batic Synchronization Roadmap, prepared by Baltic TSOs in 2014. This August, the study determining technical conditions for the test as well as preparatory measures, was completed.

The international consulting company “Tractebel Engineering S.A.” which carried out the study during period from January till August 2017, analysed different scenarios for testing isolated operation. Differences in electricity demand, operation of power plants and interconnections with neighbouring countries, as well as other aspects were included in the scenarios. The study estimated the best timing for the isolated operation test to be summer of 2019. Technical measures needed to prepare power system for the test were also identified in the study.

On 31st August the results of the study on preparation for testing Baltic power system have been presented by Tractebel Engineering to representatives from Lithuanian, Latvian and Estonian TSOs, Ministries, responsible for energy field, National Regulators and ENTSO-E.

Based on the study results, the three Baltic TSOs Litgrid, AST and Elering will agree upon the most appropriate test scenario and a specific date for the test. Then, the preparation for the test will begin: certain equipment will be checked, additional measuring devices installed and personnel trained. Meanwhile, the conditions of the test will be coordinated with those who could be affected: the participants of the electricity market, the transmission system operators of other countries, electrical energy producers.

When the test is carried out the Baltic countries will restrict their connections with neighbouring countries – Russia and Belarus. To meet power demand, Lithuania, Latvia and Estonia will use only domestic power generation sources and HVDC power interconnections. The three Baltic countries will independently maintain the balance and frequency of power.

According to the study, the preliminary costs of the preparation for the isolated operation test would be from EUR 1.28 million. The study on preparation for testing is co-financed by the European Union's Connecting Europe Facility (CEF).

The more information can be found here.