Isolated operation test of the power system of the Republic of Lithuania
Status: The isolated operation test was successfully completed on 22 April 2023.
Objective of the project
In preparation for synchronisation with Continental European grid, it is necessary to test the readiness of the Lithuanian energy system to operate independently.
Significance of the project
During the test, the entire Lithuanian electricity system was temporarily disconnected from the IPS/UPS synchronous zone for the first time and operated in isolated mode. Prior to the test, we checked the readiness of priority customers to work during the test, and coordinated access to the Lithuanian electricity system with transmission system operators of other countries. We also trained dispatchers and prepared IT systems for dispatch management in advance of the test.
Work plan
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Activity
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Date of implementation
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Establishment of requirements for the assessment of priority critical network users and critical network users for the assessment of availability during isolated operation and the establishment of principles for the classification of users
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1st quarter of 2022
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Establishment of a list of priority critical network users and critical network users
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1st quarter of 2022
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Verification of the preparedness for isolated operation of priority critical network users and critical network users
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4th quarter of 2022
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Adaptation of an existing dispatching control system for frequency support during isolated operation tests of the Lithuanian power system
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3rd quarter of 2022
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Preparation and implementation of a test plan for isolated operation of the power system of the Republic of Lithuania. The test was postponed.
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4th quarter of 2022
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| Preparation of a test plan for isolated operation of the power system of the Republic of Lithuania. | 1th quarter of 2023 |
| Implementation of a test plan for isolated operation of the power system of the Republic of Lithuania. | 2th quarter of 2023 |
Video of the isolated work test:
Video on testing power plants:
