Litgrid AB (Litgrid) maintains the national power system and controls electricity flows. It integrates the national power system into the European power infrastructure and electricity market. The company implemented cross-border electricity links such as Lithuania-Sweden (NordBalt) and Lithuania-Poland (LitPol Link). Litgrid classifies its business operations into two segments: Electricity Transmission and Related Services Activities; and Repair and Maintainance Activities. As of December 31, 2022, the company's electricity transmission through high-voltage networks for national needs amounted to 10,234 million kilowatt-hours (kWh).

The company's R&D activities focus on expanding and enhancing the efficiency of the transmission grid. In line with this, the company plans to construct new and restructure existing facilities; improve the efficiency of management of renewable energy sources (RES), and create alternatives for the implementation of an optimal RES administration model. The company’s R&D activities aim to contribute towards the effective implementation of Litgrid’s strategy and the National energy Independence Strategy.