Section
Energy Storage
Batteries, BESS, PCS, BMS and long-duration storage — from cells and chemistry to project economics and grid services. Coverage follows both technology shifts and the commercial models that make storage bankable.
Vietnam-made energy storage battery systems receive international certification
VinEnergo's 5 MWh battery energy storage system has become the first BESS manufactured in Southeast Asia to receive UL 9540 safety certification. This achievement validates the safety standards of locally produced storage technology and supports the modernization of Vietnam's national power grid.
Flexible electricity generation through battery storage systems
Quang Ninh Power Company has commissioned three battery energy storage systems at 110 kV substations to manage rising peak loads in Vietnam. This deployment supports grid stability and load balancing as the region anticipates higher electricity demand in 2026.
What Energy Storage Buyers Need to Know Heading Into 2027
Large loads like data centers are now contracting directly with construction firms to build storage systems, bypassing traditional developers. This shift creates significant risk for buyers who lack in-house expertise in quality assurance, sourcing, and financing standards.
Italy: Sodium-ion narrows the gap with lithium-ion, says Polytechnic University of Turin professor
Silvia Bodoardo from the Polytechnic University of Turin notes that state-of-the-art sodium-ion cells have reached 175 Wh/kg with high capacity retention at extreme temperatures. This technological convergence is significant for energy storage professionals as it positions sodium-ion as a viable alternative for utility-scale applications where cost and safety are prioritized over maximum energy density.
How Far Can BESS Continue to Contribute in Chile? Coordinator Warns of Potential Saturation
The National Electric Coordinator warns that Chile's battery storage system may reach saturation as 5,130 MW of new capacity comes online. This shift forces operators to diversify revenue streams beyond energy arbitrage to maintain grid stability and asset viability.
Sodium-ion batteries gain ground as a lithium alternative thanks to supply chain diversification and cold-weather performance
Wood Mackenzie reports that sodium-ion battery supply agreements have exceeded 70 GWh, signaling a shift toward commercial production. This development is critical for energy storage professionals as it highlights the technology's potential to diversify supply chains and offer cost-competitive alternatives to lithium-ion systems in specific markets.
Middle East: Power Storage Costs in the Gulf Reach $74, with Four Key Factors at Play (Report)
A new report estimates the levelized cost of battery storage in the Gulf at $74 per megawatt-hour for a gigawatt-scale model. This cost benchmark is critical for developers assessing the viability of pairing storage with low-cost solar to compete with gas-fired generation in the region.
Are There Too Many Battery Storage Facilities? Experts Disagree on the Ideal Number
Industry experts in the Czech Republic are debating the optimal scale of battery energy storage systems, with estimates ranging from 3 to 4 GW by 2028 to a market ceiling of several hundred MW. This disagreement highlights the uncertainty in capacity planning and the potential impact of storage deployment on electricity price stability for grid operators and investors.
Sliding-Mode Control Tames Oscillations in Grid-Forming Battery Storage
Researchers from Hainan Power Grid and Tsinghua University demonstrated that replacing the conventional current regulator with an integral sliding-mode controller eliminates low-frequency oscillations in grid-forming battery storage. This finding is critical for engineers designing stable control strategies for BESS projects that must interface with high short-circuit-ratio grids.
Solar Smoothing Batteries Face Steep Operating Declines in Available Power
A detailed engineering study reveals that battery systems providing solar ramp firming and state-of-charge recovery deliver significantly less upward reserve than nameplate ratings suggest. This finding is critical for developers and grid operators to accurately model available capacity and avoid overestimating the operational value of hybrid solar-storage assets.
Spain: Regional Government Gives Environmental Approval to 70 MWh Battery Plant in Medina del Campo
The Government of Castilla y León has issued a favorable environmental impact report for the 70 MWh BESS El Carrascal project in Medina del Campo. This regulatory milestone allows the administrative processing of the battery storage facility to proceed, which is critical for developers integrating storage with existing solar assets to enhance grid management.
Belgium: Flanders Counts Nearly 200,000 Home Batteries and Almost 2 Gigawatt-Hours of Storage Capacity
Fluvius data reveals that Flanders has installed nearly 200,000 home batteries with cumulative storage capacity approaching 2 gigawatt-hours. This rapid expansion highlights the critical role of residential storage in managing grid stability and self-consumption within the European energy transition.
Australia: Williamsdale Battery Starts Operation at 500 MWh
The Williamsdale battery has been commissioned, marking the completion of the utility-scale component of the Big Canberra Battery program. This milestone provides a tangible asset for evaluating the performance and revenue potential of large-scale battery storage in the Australian Capital Territory.
Brazil: C&I Leads Battery Market, But Residential Contracted Volume Triples
Greener's 2027 Strategic Energy Storage Study projects Brazil's cumulative contracted battery storage capacity to reach 2.8 GWh by the end of 2026, with C&I systems leading the market. This expansion highlights the growing role of load shifting and backup power in commercial and industrial applications across the region.
Brazil: Commercial and industrial sector leads battery market, but residential customers triple contracted volume
Greener's 2027 Strategic Energy Storage Study reports that Brazil's contracted battery storage capacity reached 1,227 MWh in 2026, a 50% increase from 2025. This growth is notable because the residential sector tripled its contracted volume, indicating a significant shift in market dynamics beyond the commercial and industrial segment.
Brazil’s state energy planner projects 139 GWh for behind-the-meter BESS by 2036
EPE projects 139 GWh of behind-the-meter storage potential in Brazil by 2036, linked to 92 GW of distributed solar. This highlights the emerging market for residential and commercial storage driven by grid injection rules and cost declines.
Batteries Take Over BOE: Nearly 930 MW of BESS Advance in Spain as 700 MW of Renewables Decline
The article reports that 928.81 MW of battery storage advanced in Spain's Official State Gazette during October, while 699.92 MW of renewable energy projects were withdrawn or dismissed. This shift highlights the growing importance of operational flexibility and energy timing for new investment models in the face of curtailment and negative prices.
United States: Samsung SDI to Repurpose US EV Battery Line for ESS, Reusing Underutilized Equipment
Samsung SDI is converting its underutilized U.S. EV battery production lines at the Indiana plant to manufacture LFP batteries for energy storage systems. This strategic shift allows the company to leverage existing infrastructure to meet growing ESS demand while improving operational efficiency in a slowing EV market.
United States: Samsung SDI Shakes Up ESS Market Amid Carbon Neutrality Push
Samsung SDI has secured over 60 GWh of ESS battery orders and is converting U.S. production facilities to focus on energy storage systems. This expansion is significant for professionals as it highlights the growing demand for storage capacity driven by renewable energy integration and AI data centers.
China Reaches 167 GW of Energy Storage, Up 63%, Adding 435 GWh in Batteries
China's operational energy storage capacity reached 167 GW and 435 GWh by September 2026, representing a 63% year-on-year increase. This rapid expansion highlights the critical role of domestic manufacturing and grid integration in scaling storage for renewable energy systems.
China: Chinese team's slurry boosts capacity of manganese batteries by 409%
Shanghai University researchers reported a 409 percent capacity boost in manganese-based semi-solid batteries by using a MnO2 slurry electrolyte. This advancement is significant for energy storage professionals as it addresses capacity limitations in manganese systems, potentially enabling more efficient large-scale storage solutions.
China Solar PV News Snippets: Tibet Completes 100 MW PV + 500 MWh Storage Project & More
Tibet Development and Investment Group has completed a 100 MW PV project paired with a 500 MWh LFP storage system in Shigatse, marking the region's first source-grid-load-storage integrated facility. This project is significant for energy professionals as it demonstrates the operational readiness of large-scale grid-forming storage systems designed to supply clean power to industrial mining operations in remote areas.
Electric batteries are buying cheap energy and selling it at a much higher price
The article analyzes how battery storage operators in Spain are profiting from buying electricity during negative price hours and selling it during peak demand. It highlights the potential market distortion this creates for power plant viability and the need for robust forecasting to ensure long-term project financing.
YOU.ON targets 1 GW of locally compliant BESS for Brazil auction
YOU.ON has signed a binding agreement with Hyperstrong to supply approximately 1 GW of battery energy storage systems for Brazil's upcoming capacity reserve auction. This collaboration is significant as it addresses local content requirements set by BNDES, enabling the import of DC components while ensuring compliance with nationalization rules for the Brazilian market.