22 home storage systems have been evaluated by the HTW Berlin, including new products from Fox ESS, Fronius, Kostal and SAX Power. March 6, 2025 22 solar energy storage systems from a total of 17 manufacturers have been evaluated by the HTW Berlin University of Applied Sciences in this year's Energy Storage Inspection.
Interested manufacturers can contact the Solar Storage Systems research group at HTW Berlin directly. The Energy Storage Inspection 2024 was developed as part of the „Perform“ project, which is funded by the Federal Ministry of Economic Affairs and Climate Action (BMWK).
Home energy storage refers to residential energy storage devices that store electrical energy locally for later consumption. Usually, electricity is stored in lithium-ion rechargeable batteries, controlled by intelligent software to handle charging and discharging cycles. Companies are also developing smaller flow battery technology for home use.
New additions in the 2024 Energy Storage Inspection: eight hybrid inverters and eight battery storage systems, including some from Dyness, Goodwe, Hypontech, Kostal and Pylontech. The Solar Storage Systems research group attested 16 home storage systems a high energy efficiency.
Berlin's urban area is supplied with energy via approx. 900 km of high voltage cable, 10,900 km of medium voltage cable and 23,900 km of low voltage cable. We use this to ensure that every part of Berlin has a secure energy supply. However, not every district has cables at all voltage levels.
Berlin-based Scale Energy has secured €2 million in seed funding to develop Europe's largest decentralized battery storage network, according to a company press release. The funding round was led by Climentum Capital, with participation from Vireo Ventures and existing investors Antler and P3A.
TotalEnergies, on the occasion of Patrick Pouyanné's participation in the Europe 2025 conference in Berlin, and in connection with the company's integrated development in Germany's electricity sector, revealed investment decisions for 6 battery storage projects with 221 MW of new storage capacity and an investment outlay of €160mn.
Energy storage, a key part of integrated electricity strategy Energy storage plays a key role in offsetting the intermittency of renewable power. Their development is therefore necessary to enable TotalEnergies to offer Clean Firm Power to its customers, i.e. the continuous, stable supply of renewable electricity.
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