Storing solar electricity using utility-scale batteries has dropped to just $65/MWh, Ember says
A new analysis from energy think tank Ember shows that the cost of storing electricity with utility-scale batteries has fallen to just $65/MWh as of October 2025 outside China and the US, making it economically feasible to deliver solar power when it is needed.
Dec 12, 2025
Spain publishes new network access rules, redefining connection of demand and storage
The National Commission of Markets and Competition (CNMC) will set access capacity, short-circuit limits, and monthly maps from February 2026. Meanwhile, the Ministry for the Ecological Transition (MITECO) has published guidance on calculating installed capacity for administrative authorizations, addressing both standalone and hybrid battery energy storage systems under the new Royal Decree 997/2025.
Inlyte proves out first full-scale iron–sodium battery system in factory test, paving way for 2026 US production
According to Inlyte, the tested unit incorporates what it describes as the world’s largest sodium metal chloride battery cells and modules built to date, with each module capable of storing more than 300 kWh of energy.
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BNEF: Lithium-ion battery pack prices fall to $108/kWh, stationary storage becomes lowest price segment
According to BNEF, battery pack prices for stationary storage fell to $70/kWh in 2025, a 45% decrease from 2024. This represents the steepest decline among all lithium-ion battery use cases and and makes stationary storage the cheapest category for the first time.
World’s first high-power aluminum-ion battery system for energy storage
For the first time, a complete aluminum-graphite-dual-ion battery system has been built and tested, showing that lithium-free, high-power batteries can deliver stability, fast response, and recyclability for next-generation grid applications.
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Building the grid required for the future
Ten years ago, when the Paris Agreement set the world on a path toward limiting global warming to 1.5°C, most energy experts understood that renewable energy and battery energy storage systems (BESS) would need to scale dramatically. What fewer anticipated was just how completely this would require us to reimagine the grid itself, writes Aazzum Yassir of Pulse Clean Energy.
Demand diligence from US battery integration
Tariffs continue to reshape the US storage market. Rising costs for overseas systems have created new incentives to integrate equipment domestically, and many developers are turning to US firms to assemble battery systems. Integration capacity can scale faster than battery cell manufacturing, but not without risk. Unlike cell plants, where automated processes keep variations in check, battery assembly and integration depends on people, as Jeff Zwijack from Intertek CEA explains.
Stacking value in a changing market: BESS revenue in October
October brought a fundamental shift to battery trading dynamics In Germany as the day-ahead market switched from hourly to 15-minute intervals. Lennard Wilkening, CEO and Co-Founder of suena energy, breaks down how this structural change, combined with shifting weather patterns, reshaped revenue opportunities – and why tactical responsiveness across markets will only grow in importance as winter volatility sets in.
Shifting global battery storage trends could open the door for European growth
Global investment in battery energy storage systems (BESS) is entering a new phase, moving from niche pilot projects to large-scale grid integration. Europe’s ability to translate lessons from the United States – in policy clarity, contracting, and hybridisation – will define how quickly the market reaches maturity, NORD/LB experts write.
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HyperStrong Retains Top Three Position in S&P Global Energy Storage Rankings, Sustaining Leadership in Global New Installations
S&P Global Energy has recently released its latest 2025 Battery Energy Storage System (BESS) Integrator Report, once again ranking HyperStrong among the top three global BESS integrators in terms of newly installed capacity for 2024. This recognition highlights the company’s strong integrated capabilities and consistent excellence in project execution across the global energy storage market.
Sunwoda’s 314Ah Cell is Now the World’s First Battery Product Certified by EPD International
Sunwoda (Stock Code: 300207), a global full-scenario energy storage solution provider, announced that its 314Ah energy storage cell has officially been certified by EPD International, making it the first product in the global battery industry to receive this accreditation. Conducted by the internationally recognized Bureau Veritas, this certification marks a significant milestone in Sunwoda's leadership in lifecycle management and green, low-carbon manufacturing.
Smart Energy in Action: JA Solar’s first BESS for C&I in Sicily, Italy
JA Solar, a global leader in photovoltaic products and integrated energy solutions, announced the successful commissioning of a solar-plus-storage microgrid at a modern C&I facility in Sicily. This project represents a practical implementation of JA Solar's "PV+Storage+X" model – a flexible approach that combines solar generation and battery storage with specific industry applications ("X") to deliver tailored, sustainable energy solutions.
AlphaESS and Octopus Energy Announce Integration Across the Entire Residential Range
AlphaESS, a BloombergNEF Tier 1 energy storage manufacturer, has announced a major milestone in residential energy storage: its entire portfolio of home battery systems is now fully integrated with Octopus Energy’s intelligent tariffs. This achievement marks a significant advancement for installers, distributors, and homeowners seeking smarter, more flexible, and more profitable energy management solutions.
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Inlyte proves out first full-scale iron–sodium battery system in factory test, paving way for 2026 US production
According to Inlyte, the tested unit incorporates what it describes as the world’s largest sodium metal chloride battery cells and modules built to date, with each module capable of storing more than 300 kWh of energy.
World’s first high-power aluminum-ion battery system for energy storage
For the first time, a complete aluminum-graphite-dual-ion battery system has been built and tested, showing that lithium-free, high-power batteries can deliver stability, fast response, and recyclability for next-generation grid applications.
Sicily opens $286M tender for solar and battery storage projects of any size under new EU-aligned programme
Sicily has launched a significant funding window for companies to install photovoltaic systems and battery storage, with preliminary applications due between 15 December 2025 and 13 February 2026.
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