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Existing 330kV lines

Moving energy
High voltage power transmission and servicing the 330kV and 110kV power transmission lines in the Territory of Latvia.

The physical flows of electricity shown on the map are technical transit flows that enter the power system across one border and leave the power system across another border. Technical transit flows are not an indicator for commercial supplies.

Existing 330kV lines

Events
News

Continuing to support Ukraine in restoring its energy infrastructure and strengthening its independence, Latvia’s transmission system operator AS Augstsprieguma tīkls (AST), in cooperation with…

Announcements

JSC “Augstsprieguma tīkls” (AST) informs that the Chair of the Supervisory Board of AST, Olga Bogdanova, will perform her duties until 24 August 2026 in connection with continuing her professional…

Announcements

Latvia’s transmission system operator AS Augstsprieguma tīkls (AST) invested EUR 24,43 million in the development of the electricity transmission grid in the first three months of 2026,…

Announcements

The performance of Latvian transmission system operator AS Augstsprieguma tīkls (AST) in the areas of quality, environment, energy management, occupational health and safety has been highly rated…

Development
Management and development of the Latvian transmission system and its integration into the European energy system.
Services
We provide all market players with equal access to the transmission network and with transmission services according to the defined transmission service rates.
Diagnostics and expertise of technical condition and characteristic values of the electric safety means, power systems and electrical equipment, environmental parameter testing.
Arranging system connections for electricity Users and Producers. Increasing the permitted load of existing connections.
Balancing and other ancillary services
System use, Balance and Balance service agreement templates and relevant terms and conditions. Information on imbalance administration costs
Granting and issue of energy identification codes.