Modernization and development of transmission network

Latvian electricity transmission system operator Augstsprieguma tīkls AS is responsible for the safety of electricity supply and modernization and development of transmission network. Major development projects are shown on the map.

Project
Synchronisation, 1st phase
Synchronisation, 2nd phase
System synchr. and inertia equipment
Completion of the project
2019
2020
2021
2023
2024
2025
2025
Total costs, including:
128 MEUR
15 MEUR
83 MEUR
23 MEUR
22 MEUR
32 MEUR
100 MEUR
EU co-financing
55 MEUR
7 MEUR
51 MEUR
17 MEUR
17 MEUR
24 MEUR
55 MEUR
Overload charge revenue
11 MEUR
7 MEUR
31 MEUR
6 MEUR
5 MEUR
7 MEUR
25 MEUR
Line length
214,3 km
13 km
180 km
49 km
49 km
 
 

The power transmission network is developed according to the Latvian power transmission System Development Plan and the European Ten Year Network Development Plan. Those Latvian projects are included in the European Ten Year Network Development Plan that are strategically important not only nationally, but for the Baltic Sea Region in general, and inclusion in the European Ten Year Network Development Plan is one of the preconditions for the projects to be able to apply for European co-funding.To provide for safe operation of the Latvian electricity system, effective functioning of the electricity market and to prevent ageing of equipment, Augstsprieguma tīkls AS is reconstructing and modernising the high voltage substations and the points of electricity distribution. Considering the trends in the development of electricity systems in Latvia and neighbouring countries, Augstsprieguma tīkls AS is assessing and deciding on the need to develop interconnections of the Latvian power transmission system and to strengthen and modernise the internal network.

The above development projects may be funded from various sources:

  • One of the principal sources of funding is the power transmission tariff approved by the Public Utilities Commission, a certain portion of which is intended for development projects;
  • It is possible to attract European co-funding from the CEF (Connection Europe Facility)  for strategically and internationally important power transmission network development projects;
  • Development projects that increase the cross-border transmission power and eliminate bottlenecks in the power transmission network may be funded from the congestion management revenue of the transmission system operator, which is generated from the difference in electricity prices in different trading regions due to insufficient cross-border transmission power.
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