During testing at Estonia’s 100 MW Kiisa battery park, both EstLink 1 and EstLink 2 tripped, triggering the most severe disturbance to the regional power grid since desynchronization from the Russian electricity system. As a result, nearly 1 GW of capacity was lost within seconds. The park’s owner has since publicly pointed to the battery manufacturer. January 29, 2026 Marija Maisch Image: NIB From ESS News A disturbance in Estonia’s power system on Jan. 20 forced both EstLink interconnect...

The European Union added 27.1 GWh of battery energy storage capacity in 2025, with utility-scale systems accounting for the majority of new installations as residential storage declined amid lower electricity prices and reduced support schemes, according to a new report from SolarPower Europe. January 28, 2026 Marija Maisch Image: pv magazine From ESS News The European Union’s battery energy storage fleet has grown for the 12th consecutive year, marking yet another record year for new installa...

The SLDBatt project brings together TRL 7 battery technologies – including molten sodium‑salt, saltwater acid–base flow, and hydrogen–iron flow batteries – to deliver an innovative and cost-effective long-duration energy storage solution. January 14, 2026 Marija Maisch Image: Elestor From ESS News A Dutch consortium, ranging from innovative start-ups to internationally operating energy companies, is developing a new type of long-duration energy storage (LDES) solution capable of storin...

By 2050, sodium-ion batteries with fast learning rates could deliver storage at 11–14 €/MWh – cheaper than lithium-ion at 16–22 €/MWh – while also offering higher energy-to-power ratios and high cycle durability, a new research finds. January 9, 2026 Marija Maisch Image: Southern Power Grid From ESS News Any technology aiming to compete with lithium-ion batteries (LIBs) faces the challenge of rapidly declining costs for this already ubiquitous technology. As LIBs continue to expa...

The Indian Ministry of Power has ordered all battery energy storage system (BESS) projects supported under the viability gap funding (VGF) scheme to meet a minimum 20% local content threshold, aiming to boost domestic manufacturing and innovation. December 30, 2025 Marija Maisch Image: FRV Australia From ESS News The Indian Ministry of Power has issued a directive requiring a minimum 20% local content in all battery energy storage system (BESS) projects implemented under the Viability Gap Fundin...

Poland has awarded public support to 172 large-scale battery storage projects totaling 14.5 GWh, with construction required to be completed by the end of 2028. December 19, 2025 Marija Maisch Image: Government of Poland From ESS News The Polish government has announced the final list of energy storage projects to receive support under its PLN 4.15 billion ($1.15 billion) subsidy program. The ranking published by the National Fund for Environmental Protection and Water Management (NFOŚiGW) inclu...

Saudi Electricity Co. has completed a massive storage project across three sites, enhancing grid stability and renewable integration. Once fully operational, the installation will become the world’s largest battery energy storage system (BESS). December 18, 2025 Marija Maisch Image: Algihaz Holding From ESS News The Kingdom of Saudi Arabia has officially completed grid connection of its landmark battery energy storage project, with a nameplate capacity of 7.8 GWh. The project spans three sites...

Market trends suggest battery energy storage systems (BESS) will likely operate 1.5 cycles per day, bringing the effective storage cost down to just INR 2.8/kWh (0.031/kWh), the Ministry said on Monday. December 15, 2025 Marija Maisch Image: FRV Australia From ESS News The Indian Ministry of Power said in a statement on Monday that the cost of battery energy storage systems (BESS) in India has dropped sharply over recent years. Tariff-based competitive bidding during 2022–23 revealed costs of...

The Hungarian government says its new HUF 100 billion ($305.4 million) program will support 10 kW home battery systems to boost solar self-consumption and cut evening-peak demand. December 12, 2025 Marija Maisch Image: Senec From ESS News The Hungarian government has launched a residential energy storage program with a budget of HUF 100 billion. Under the initiative, households can install 10 kW battery energy storage systems, with a non-refundable subsidy of HUF 2.5 million to support the purch...