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Longi launches Longi One: new integrated solar-plus-storage platform strategy China-based solar manufacturer Longi is shifting from a multi-vendor system design to a unified solar-plus-storage architecture built around in-house technologies.
Vincent Shaw
Apr 02, 2026
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Sonnen cuts prices for large residential battery products German company Sonnen is set to offer its customers a 22 kWh battery energy storage system (BESS) for the price of an 11 kWh product. The offer will be valid until the end of June 2026.
Sandra Enkhardt
Apr 02, 2026
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Grenergy locks in 2.6 GWh of BYD’s MC Cube T batteries for its Central Oasis platform in Chile The Spanish developer has struck a supply agreement with BYD Energy Storage for 468 MC Cube T units destined for four phases of its flagship Chilean project, with the first shipment already at sea.
Pilar Sanchez Molina
Mar 30, 2026
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Bluetti FridgePower review: The battery revolution comes inside the house The Bluetti FridgePower offers a simpler way to have peace of mind about energy for the most important part of a house, and not just for home owners but those who rent or lease, too.
Tristan Rayner
Mar 27, 2026
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EnerSys shifts next-gen lead-acid manufacturing to Missouri for AI-era data centers Industrial battery manufacturer EnerSys is closing its legacy lead-acid facility in Tijuana, Mexico, consolidating production at its Springfield, Missouri plant, where it makes a new type of lead-acid battery it says is better suited to the demands of modern data centers.
Tristan Rayner
Mar 27, 2026
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Spain completes testing of Europe’s largest research vanadium BESS Spain’s Fundación Ciudad de la Energía (Ciuden), a government energy research foundation, has completed operational testing of a 1 MW/8 MWh vanadium redox flow battery (VRFB) system at its Cubillos del Sil technology center, which it says is the largest vanadium flow battery in Europe dedicated to applied research.
Pilar Sanchez Molina
Mar 24, 2026
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When battery imbalance turns 11% of capacity into stranded energy A 350 MWh battery storage system is delivering significantly less energy than expected without the battery management system detecting the issue. The result is chronic overestimation of tradable energy volumes and potentially five-figure weekly balancing energy costs. This is one of the real-world failure scenarios we will explore and show how to avoid at the upcoming Battery Business & Development Forum on April 1.
Michael Fuhs
Mar 23, 2026

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Hizenergy launches four-product C&I storage lineup, led by 300 kW low-voltage PCS The new range targets commercial rooftops, industrial parks, microgrids and longer-duration behind-the-meter storage.
Vincent Shaw
Mar 10, 2026
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France’s Kinell launches European BESS business in partnership with POWR2 Kinell, a brand of the Nantes-based engineering group Fétis Group, has launched its battery energy storage systems (BESS) business for the European market through a partnership with the American company POWR2. The modular systems cover a power range of 15 kVA to 300 kVA, with storage capacities from 60 kWh to 600 kWh.
Marie Beyer
Mar 09, 2026
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Energy Storage Inspection 2026: Fox ESS, SMA, SAX Power, Kostal and BYD impress with high efficiency Twelve photovoltaic storage systems with capacities of 5 kW or 10 kW were included in the comparison, among them several new products, all of which achieved efficiency class A. A new study – also examining efficiency losses when storing electricity from the grid – highlights the importance of highly efficient battery storage. The researchers also took a closer look at the warranty conditions of the devices.
Sandra Enkhardt
Mar 06, 2026
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Solis launches new residential storage system portfolio The Chinese manufacturer said its new three residential battery lines support a depth of discharge of 90% and deliver over 6,000 cycles.
Lior Kahana
Mar 06, 2026
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Sigenergy unveils 2.68 kWh battery for balcony PV Sigenergy has launched a 2.68 kWh balcony storage system with four MPPTs and up to 4 kW of PV input. The scalable LFP solution offers 800 W grid output, 1.2 kW backup power, and expansion up to 18 kWh per tower.
Emiliano Bellini
Mar 05, 2026
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Photoncycle raises investment, aims to bring long-duration hydrogen energy storage systems to homes in 2027 The Norwegian company wants to create long-duration storage options using excess solar to create hydrogen to store as ammonia for use in cold, dark winters.
Tristan Rayner
Mar 04, 2026
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Ecoflow debuts 5 kWh residential inverter battery with 100% depth of discharge EcoFlow has unveiled the single-phase Ocean 2 all-in-one battery inverter at Key Energy in Rimini. The system features a more compact 5 kWh LFP battery stackable up to 30 kWh and offering 100% depth of discharge, 3.4 kW discharge power, and IP66 protection.
Emiliano Bellini
Mar 04, 2026
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Australian regulator ramps up battery inspections Solar battery installers have been warned to “do it once and do it well” as the number of batteries installed across Australia under the federal government’s Cheaper Home Batteries Program surges past the 250,000 milestone, delivering a combined 6.3 GWh of capacity.
David Carroll
Mar 02, 2026
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Bluetti launching Elite 300, world’s smallest 3 kWh portable power station [UPDATED] The Bluetti Elite 300, packing more power than ever into a small form, will be available with early-bird discounts from March 8.
Tristan Rayner
Feb 27, 2026

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