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Tesla was one of the pioneers of the grid-scale battery storage market, but has faced increasing competition in the past few years. In this article we look under the hood of its latest grid-scale BESS product, the Megapack 3. 
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Inertia could provide a strong boost to BESS project returns in Germany, but operators are still waiting for the first prequalified inverters.
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BLUETTI, a technology pioneer in clean energy, today unveiled a new portfolio of products and intelligent energy solutions at IFA 2026.
CNESA’s report is a comprehensive overview of China’s energy storage sector in H1 2026 and outlines the industry outlook under the 15th Five-Year Plan.
A roundup of user-posted analysis, views and unofficial news from across the industry this past week, this time looking at this week’s sabotage attack on the German grid, BESS revenues and electricity market activity, CATL’s LFP price cut and various non-lithium news.
Developer-operator MN8 Energy, zinc hybrid cathode battery and storage system maker Eos Energy Enterprises, and tech giant Google are backing a multi-technology renewables project on the PJM grid in the US.

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News
September 9, 2026
Trade association Energy Storage Canada (ESC) has recommended establishing a Distributed Reliability Track for behind-the-meter (BTM) and distribution-connected energy storage in Ontario.
News
September 9, 2026
This edition of news in brief brings you BESS news from the UK market featuring Field, Eelpower and EDF, as reported by our colleagues at Solar Power Portal.
News
September 9, 2026
Ayala’s ACEN Corp has loaned PHP9 billion (US$144 million) to subsidiaries within the group for renewable energy and battery storage projects.
News
September 9, 2026
A new wave of cell price hikes is sweeping the battery energy storage industry. Major manufacturers have initiated price increases, with smaller producers quickly following suit.
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Interviews, Features
September 9, 2026
In this interview with ESN Premium, Sahand Karimi of OptiGrid discusses how BESS warranties and constraint management shape trading behaviour
News
September 9, 2026
Australia’s 58 grid-scale battery storage systems in the NEM generated a combined AU$28.79 million in estimated gross energy and FCAS revenue.
News
September 8, 2026
We are pleased to announce that we’re now working on the 2027 edition of the Energy Storage Report, our annual publication looking at the big trends shaping the industry. 
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Features, Analysis, Interviews
September 8, 2026
PJM has proposed a major overhaul of how it procures power capacity in response to surging data centre demand that has driven auction prices up more than 1,000% in two years and threatens to add US$70 per month to average household electricity bills by 2028.
News
September 8, 2026
EDF Power Solutions has put a 150MW/600MWh BESS in Belgium into commercial operation while Engie has started building a 74MW/296MWh project. 
Guest blog, Analysis, Features
September 8, 2026
As the battery storage industry matures through competition and scale, a significant push for efficiency is coming, writes Dr Kai-Philipp Kairies, CEO and co-founder of ACCURE Battery Intelligence.

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