Enline and Energiot Awarded Dynamic Line Rating Contract by Litgrid

Enline, in partnership with Energiot Devices, has been awarded a contract by Lithuania’s electricity transmission system operator Litgrid to deploy Dynamic Line Rating (DLR) technology across the country’s national transmission grid. The project will modernize more than 1,000 km of transmission lines, enabling higher grid capacity, improved operational efficiency, and stronger integration of renewable energy sources.

Under the agreement, the DLR system will be installed across 38 overhead transmission lines covering approximately 1,170 km. The rollout combines virtual monitoring with physical sensing to provide real-time and forecast-based assessment of line capacity. Twenty-five lines, totaling about 844 km, will use virtual sensors based on technical parameters, tower coordinates, and weather forecasts, while thirteen lines, totaling about 328 km, will be equipped with self-powered physical sensors measuring environmental and conductor conditions directly in the field.

According to results from previous pilot projects conducted by Litgrid, the use of Dynamic Line Rating increased transmission capacity by an average of 52 percent compared to the static design rating, demonstrating the potential of the technology to support higher renewable generation without immediate investment in new lines.

Donatas Matelionis, Head of the System Management Department at Litgrid, emphasized the importance of the technology in strengthening the flexibility of the Lithuanian grid:

“Variable line rating technologies, under suitable environmental conditions, allow for significantly lower costs than rebuilding lines to increase their capacity, enabling the flow of more electricity. Greater capacity of overhead transmission lines will allow renewable energy plants to produce more electricity without restrictions. I am pleased that, in making the investment decision, we were able to rely on the results of the pilot tests.”

Lithuania’s transmission network is undergoing rapid transformation as renewable energy capacity continues to grow. Installed wind and solar generation in the country has already reached nearly 6 GW, representing more than 60 percent of total generation capacity. This rapid expansion requires more flexible transmission operation to avoid congestion and to ensure that renewable plants can deliver power to the grid with minimal curtailment.

More information about the project is available through Litgrid’s official communication channels and recent public announcements.