Lithuania's electricity system is managed by a single TSO, Litgrid, and several DSOs, with Energijos Skirstymo Operatorius (ESO) being the largest, alongside other regional DSOs.
Litgrid provides transparent hosting capacity information through an openly accessible online map covering Lithuania at the nodal (substation) level. The published data reflects both available and reserved capacities across the 110 kV and 330 kV networks, while other TSO lines, such as 300 kV DC and 400 kV, are represented but not open for new connections. Hosting capacity is assessed over a 10-year (Y+10) horizon, incorporating only projects with signed construction agreements. Updates occur as soon as possible, but more impactful changes happen quarterly due to the auction-based nature of capacity reservations.
The methodology used by Litgrid distinguishes between firm and flexible capacity. Firm contracts are offered to consumers, while generation and storage operate under flexible conditions. Capacity is allocated separately to solar, wind, and storage, with curtailment rules applied to manage simultaneous generation. Calculations are based on static system assessments after faults. Investors without capacity in their preferred location can still request preliminary connection requirements, including details on necessary reinforcements or grid expansions.
A Lithuanian DSO, ESO, has five public hosting capacity maps. The first, designed for consumers, is simplified to make it easier for the general public to understand and shows only available capacity and already installed capacity. There are two maps for solar and storage at the 110 kV and 35 kV levels, and two maps for wind energy at the same voltage levels.

