Higher network fees threaten battery storage projects in Estonia

Six energy firms have cautioned that a revision of Elering's network fee schedule for battery storage, set to take effect in 2027, may deter investment in Estonia. They argue that the higher charges will raise the cost of operating battery parks, making them far less attractive compared with neighboring Lithuania where fees are lower. Mihkel Annus, head of regulatory affairs at Enery Estonia, warned that the shift could cause essential storage projects to relocate elsewhere, reducing benefits for Estonian consumers.

Elering's chief executive Kalle Kilk said the adjustments are part of a broader fee restructuring that aims to allocate costs more equitably among grid users, and noted that the Competition Authority has already endorsed the new model. The Ministry of Climate, Energy and Environment, represented by Erkki Keldo, acknowledged the need for more battery capacity but emphasized that Elering must also cover its own expenses and fund grid upgrades. Officials said they will seek a compromise that protects both grid investment and the competitiveness of battery storage.