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Wärtsilä spinning out its energy storage activities and divesting a 50% stake this week reflects difficulties in making the business profitable and synergistic within the wider group activities, analysts said.
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Around 4.9GW/14.6GWh of large-scale BESS came online in May, with a much more balanced regional breakdown than usual.
AESC has announced a strategic supply partnership with BESS system integrator Prevalon Energy.
Energy-Storage.news presents this sponsored webinar with Clean Horizon, on how Germany’s grid connection agreements can affect the business case for battery storage projects.
Ontario, Canada’s Independent Electricity System Operator (IESO) has secured 640MW of new capacity through three projects selected under the capacity stream of the Second Long-Term Request for Proposals (LT2).
Energy Dome is advancing a 10-hour CO2 Battery project in Arizona, with SRP and Google, while Invinity announces the sale of North America’s largest VRFB, in California.
We caught up with the CEO of owner-operator BW ESS, Erik Strømsø, about the firm’s next deployment plans, tolling trends, procurement and LDES, with its 11.5-hour Bannaby BESS in Australia further proof of lithium-ion’s long-duration potential.
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Interviews, Analysis, Features
June 18, 2026
Energy-Storage.news Premium speaks with co-founder and chief products officer of microinverter and home energy storage system supplier Enphase Energy, Raghu Belur, about the company’s recent focus on solid-state transformer technology.
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June 18, 2026
A group of sodium-ion (Na-ion) battery-focused companies have launched a new industry coalition, the American Battery Leadership Coalition (ABLC).
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June 18, 2026
Energy storage developer-operator Aypa Power and utility Salt River Project (SRP) have brought the 250MW/1,000MWh Pediment energy storage project online in Mesa, Arizona.
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Features, Interviews
June 18, 2026
We chat to Stephan Lehrke, head of Germany at Second Foundation, a Czech Republic-headquartered energy asset trading firm which is becoming an owner-operator of BESS.
News
June 18, 2026
Activity in Central and Eastern Europe (CEE) continues to accelerate, with two separate c.600MWh projects completed in Bulgaria by Solarpro & CATL and Sunotec and Sungrow, plus around 800MWh of capacity progressed across Romania, Estonia, Lithuania, and Finland.
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June 18, 2026
Fire and Rescue NSW (FRNSW) in Australia has set out its requirements for lithium-ion battery storage rooms and diesel generator structures in data centres.
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June 18, 2026
Neoen Australia has signed virtual battery agreements with energy retailers Nectr and SmartestEnergy for Stages 2 and 3 of the Western Downs Battery in Queensland.
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June 17, 2026
Octopus Energy Generation has partnered with ZE Energy to invest in and build one of Italy’s biggest BESS projects, while Eco Stor has secured financing for one of Germany’s, which it is already building. Optimiser Entrix has also won two large contracts in Germany and the Netherlands.
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June 17, 2026
SECI is inviting bids for 4,800MWh of firm and dispatchable renewable energy (FDRE) capacity supported by co-located energy storage.
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June 17, 2026
Developers of battery storage projects across Southeast Asia must heed lessons learned elsewhere and engage with key stakeholders as early as possible, Energy-Storage.news has heard.

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