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“Grid-forming technology is no longer experimental – it’s here and working”
In grids increasingly dominated by renewables, grid-forming technology is emerging as critical tool for maintaining stability and ensuring reliable power system operation. In this interview with ESS News, Rui Sun, Sungrow’s Deputy General Manager-Grid Technology Center, explains how grid-forming works, why it matters, and where the technology is already proving its value. He elaborates on technical challenges, regulatory gaps, and why grid-forming could soon become the new industry standard.
Jul 07, 2025
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Brazilian energy storage regulation due this year, regulator official says
Daniel Danna, rapporteur for regulator the Agência Nacional de Energia Elétrica's (ANEEL) Public Consultation (CP) 39, of 2023, told Brazil's Chamber of Deputies initial energy storage rules would be published in the second half of the year, with two rounds of further regulatory discussion due to finish by 2028.
Brazilian energy storage hampered by technical challenges and lack of regulation
While Brazil wastes billions of real on curtailment, the electricity sector is demanding urgent action on an energy storage capacity reserve auction which is now not expected until 2026. 'What is missing is the courage to unlock the market,' said Greener CEO Marcio Takata.
At least 18 GW of batteries await Brazil’s planned auction
While Brazil is making progress in customer-side, "behind-the-meter" and off-grid battery solutions – with more than 700 MWh – it still lacks guidelines for a planned gigawatt-scale national auction. Markus Vlasits, president of the Brazilian Association of Energy Storage Solutions (ABSAE), tells pv magazine about the nation's utility-scale battery bottleneck.
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Brazil’s Brasol to invest $26m in commercial batteries-as-a-service
The director of Brasol's new business unit, Diogo Zaverucha, said the company sees huge pent-up demand for applications that are not yet regulated, and intends to participate in the storage-dedicated capacity reserve auction planned for the second half of the year.
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Brazil installed 269 MWh of energy storage in 2024, Pará the most attractive state
Consultancy Greener has estimated the state of Pará offers the most potential for battery rollout because of its high energy tariff. A report issued by the consultant also highlighted the big savings agribusiness could make by using batteries instead of diesel.
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A fork in the road for energy storage
Faster-than-expected price falls and global oversupply of batteries will go up against a rising tide of global protectionism this year. So how will it all shape up for the energy storage industry? Storage industry thought leader and UN adviser Marek Kubik considers the key issues.
Feb 10, 2025
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