Foreign entity of concern (FEOC) restrictions and the scheduled Section 301 tariff increase to 25% on Chinese-origin battery energy storage systems (BESS) went into effect on 1 January 2026.

Luke Witmer, VP of software engineering at Wärtsilä Energy Storage, explains why 2025 was an “awkward” year, but one that saw the industry grow taller than ever.

Year in Review series perspectives, from FEOC to data centres, from Vaughn Morrison, partner at US law firm Troutman Pepper Locke.

While the UK grid-scale BESS market continues to be among the busiest in Europe, there are still huge questions and plenty work to be done in several key policy areas.

US-based iron-sodium battery manufacturer Inlyte Energy has successfully completed a factory acceptance test of its first field-ready battery at its facility near Derby, UK, witnessed by representatives from US utility Southern Company.

Energy-Storage.news Premium speaks with Phil Tonkin, field chief technology officer at Dragos, and Dr. Peter Fox-Penner, a Brattle principal, on BESS cybersecurity.

The managing director of Bluestar Energy Capital’s European BESS platform Noveria Energy gave a Q&A to Energy-Storage.news ahead of the Energy Storage Summit 2026 in London next month.

Lennart Hinrichs at TWAICE, discusses how the industry’s approach to battery analytics is changing, as part of our annual Year in Review series.

2025 saw genuinely large-scale BESS projects start construction in Germany, strengthening confidence among stakeholders. But significant challenges remain around grid connection, connection agreements and access to revenue streams, an operator said.

Mukesh Chatter, CEO of US sodium-ion battery startup Alsym, on the prospects for non-lithium alternative technologies in 2026 and beyond.