Battery pack prices for stationary storage fell to $70/kWh in 2025, a 45% drop from 2024, making it the cheapest lithium-ion category for the first time, according to BloombergNEF (BNEF). December 9, 2025 Marija Maisch Image: BloombergNEF From ESS News While the pace of price decreases has slowed, lithium-ion battery packs have reached a new record low in 2025. According to the latest analysis by BloombergNEF (BNEF), prices have fallen 8% since 2024 to $108/kWh, making them 93% lower than in 201...

The Chinese Ministry said it will take swift action to rein in aggressive low‑price competition that threatens to destabilize businesses and impede sustainable industry growth. November 28, 2025 Marija Maisch...

The new 12.5 kWh pack-based design supports flexible configuration up to 250 kWh per system. An optional long-duration combiner box supports 2–4 clusters, expandable to 1,000 kWh and 8 hours of storage. November 27, 2025 Marija Maisch Image: Sungrow From ESS News Chinese inverter and battery manufacturer Sungrow has introduced its latest commercial and industrial (C&I) battery energy storage solution, the PowerKeeper series, offering a one-stop DC-coupled system with a modular design....

After last year’s slowdown, investment in China’s sodium-ion battery sector is rebounding in 2025, and one of the biggest projects yet has now entered the development pipeline. November 24, 2025 Marija Maisch Image: Southern Power Grid From ESS News While many lithium-ion battery manufacturers in China are sold out and struggling to keep pace with demand from the energy storage sector, investment is increasingly flowing not only to the ubiquitous lithium-ion technology but also, and substant...

Engie has fully commissioned its 200 MW/800 MWh battery in Vilvoorde, Belgium, and is assessing a potential 100 MW/400 MWh expansion while advancing additional large-scale storage projects. November 21, 2025 Marija Maisch Image: Engie From ESS News Just a few weeks after starting commercial operation of the first half of its battery park in Vilvoorde, Engie has also connected the second 100 MW/400 MWh portion to the high-voltage grid. This milestone marks the full commissioning of the entire...

LCP Delta and Energy Storage Europe say installed storage capacity across the European Union, the United Kingdom, Norway, and Switzerland will exceed 100 GW this month, with battery systems driving the fastest growth. November 19, 2025 Marija Maisch Image: Energy Storage Europe From ESS News The European Union, the United Kingdom, Norway, and Switzerland together are expected to reach 100 GW of installed energy storage later this month, according to new analysis by LCP Delta and Energy Storage E...

Tesla says its recall and replacement effort stems from a contained battery-cell defect that has raised safety concerns in both the United States and Australia. November 14, 2025 Marija Maisch Image: Tesla From ESS News Tesla has issued a recall notice for its fully integrated Powerwall 2 AC battery energy storage system and initiated a replacement program for roughly 10,500 affected units in the United States. The US Consumer Product Safety Commission reported that Tesla has received 22 report...