Energy Cells operates a 200 MW/200 MWh battery energy storage system across four sites in Lithuania, providing sub‑second reserve and frequency regulation services to transmission operators such as Litgrid. The platform delivers 24/7 remote monitoring, automatic power injection or absorption, ancillary grid‑balancing services, and technical consulting for BESS design, integration, and long‑term operation.
Funding
Funding not disclosed
Founders
Product
Problem
Lithuania’s power grid requires a reliable, instantaneous reserve to maintain stability and to operate in isolated mode while transitioning to the continental European network. Existing reserve solutions are limited in capacity, response speed, and geographic coverage, creating a risk of frequency deviations and supply interruptions.
Solution
Energy Cells operates a 200 MW / 200 MWh battery energy storage system composed of four 50 MW, 50 MWh battery parks located in Vilnius, Šiauliai, Alytus and Utena. The system delivers an isolated‑mode power reserve for the transmission system operator Litgrid, automatically injecting or absorbing power within one second to balance frequency and support grid stability. Continuous 24/7 remote monitoring and control from a central operations centre ensures high availability and rapid fault response. The platform also provides ancillary services such as frequency regulation, reserve provision, and grid‑balancing, and it can be leveraged to integrate increasing shares of renewable generation after synchronization with the continental European grid. In addition, Energy Cells offers technical consulting and project‑level expertise for battery energy storage system (BESS) design, installation, testing, integration and long‑term operation across Lithuania and the broader European market.
Target Audience
Primary customers are transmission system operators such as Litgrid, national and regional electricity utilities, and renewable energy developers requiring fast‑acting reserve and grid‑balancing services.
Features
- Four modular battery parks (50 MW / 50 MWh each) strategically sited to cover key grid nodes.
- Sub‑second (≤ 1 s) automatic response to operator dispatch signals for frequency and reserve control.
- 24 / 7 remote monitoring, fault detection, and real‑time control via a centralized control centre.
- Integrated design, construction, commissioning and 15‑year maintenance contract provided by the Siemens Energy & Fluence consortium.
- Vendor‑neutral technical consulting covering technology selection, system sizing, grid interconnection studies, and compliance documentation.
- Capability to support renewable energy integration and future ancillary services after Lithuania’s synchronization with the continental European network.
- Compliance with EU and Lithuanian regulatory frameworks, including robust data security and operational reporting.