HTW Berlin 2025 energy storage inspection: Kostal, SAX Power set new efficiency records
The Berlin University of Applied Sciences (HTW Berlin) has reported results of its annual energy storagy inspection and confirmed two new efficiency records.
A total of 17 manufacturers with 22 energy storage systems took part in the established energy efficiency comparison. Eight devices were new to the test, including those from Fox ESS, Fronius, Kostal and SAX Power.
The independent testing found that the Plenticore G3 hybrid inverter from Kostal achieved an unprecedented 98.2% efficiency in the charging mode. Meanwhile, the Home Plus battery system from SAX Power posted a new efficiency record breaking the 98% hurdle for average efficiency in discharge modes.
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Customized/OEM/ODM Service
HomSolar Supports Lifepo4 battery pack customization/OEM/ODM service, welcome to contact us and tell us your needs.
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Our line of LiFePO4 (LFP) batteries offer a solution to demanding applications that require a lighter weight, longer life, and higher capacity battery. Features include advanced battery management systems (BMS), Bluetooth® communication and active intelligent monitoring.
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ABS plastic housing, aluminium housing, stainless steel housing and iron housing are available, and can also be designed and customised according to your needs.
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About Our Battery Cells
Our energy storage system products use brand new grade A LiFePO4 cells with a battery lifespan of more than 4,000 charge/discharge cycles.
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