Investigation of home energy storage manufacturers

The global battery energy storage market has grown rapidly over the past ten years. Home storage systems have made an important contribution to this growth, representing one way for the public to participate in the energy transition.

Now, a large open-access dataset from eight years of field measurements of home storage systems is presented, enabling the development of a capacity estimation method. You have full access to this article via your institution. The global battery energy storage market has grown rapidly over the past ten years.

Home storage systems have made an important contribution to this growth, representing one way for the public to participate in the energy transition. In Germany alone, 1.5 million home systems (see Battery Charts) are installed, with manufacturers giving warranty periods of around ten years.

Figgener, J. et al. The development of stationary battery storage systems in Germany—A market review. J. Energy Storage 29, 101153 (2020). This review provides an overview of the first subsidy programmes for home storage systems in Germany.

The multi-year field measurements provide insight into the operation of home storage systems. We subsequently developed a method for estimating the usable battery capacity of home storage systems tailored to their operational patterns.

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