Australia’s National Electricity Market (NEM) achieved multiple battery energy storage records during the weekend of 27-28 September 2025, highlighted by total storage capacity reaching 6,591.5MWh for the first time.

Advances in sodium-ion battery energy storage systems come from Peak Energy in the US, deploying its sodium-ion system in Colorado, and Phenogy, deploying Europe’s largest sodium-ion system in Germany.

Chinese battery manufacturer Rept Battero and Energy Vault have signed a 2026 supply agreement in the United States.

A recent decision from South Dakota’s Public Utilities Commission (PUC) has highlighted a legal permitting ambiguity in the way energy storage facilities are treated in the Mount Rushmore State. 

Samsung C&T Renewable Energy Australia has submitted plans for a 300MWh solar-plus-storage project in Queensland to Australia’s EPBC Act.

Utility Georgia Power has announced the open comment period for its 2025 Request for Proposals (RFP) for battery energy storage system (BESS) resources. 

Investment and IPP news from across Europe, with DTEK buying a BESS project in Poland, Ingrid inaugurating one in Sweden and Triodos investing in a German portfolio.

Hithium will supply its latest 6.25MWh DC block products to engineering, procurement and construction (EPC) company Solarpro, for projects in Eastern Europe.

Northern California Power Agency (NCPA) has negotiated the terms of an energy storage services agreement (ESSA) with Aypa Power, relating to offtake from a 400MW standalone BESS destined for the County of San Bernardino. 

Microsoft, Sunrock, Zurich, and AlphaStruxure are among 20 participants joining Schneider Electric to deploy community-based energy systems across the US, supporting public and private sector organisations with “innovative solutions” and financing.