Are home storage systems the future of battery energy storage?

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.

Can a multi-year field measurement predict the battery capacity of home storage systems?

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.

Is there a capacity estimation method for home storage systems?

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.

What is battery energy storage system (BESS)?

Battery Energy Storage System (BESS) is a technology that stores electrical energy in the form of chemical energy within batteries. This stored energy can be later converted back into electricity and released when needed. BESS plays a crucial role in enhancing the reliability, stability, and efficiency of electrical power systems.

Why is voltage monitoring important?

Accurate voltage monitoring is crucial for maintaining the health and safety of the battery system. Current measurement: Current sensors are integrated into the high-voltage circuit to measure the charging and discharging currents of the battery pack.

Can a lithium-ion home storage system be measured in a field?

To validate this method, we performed a total of 60 field capacity tests over the lifetime of 18 systems (Fig. 1a,b). To the best of our knowledge, there are no comparable multi-year field measurements of lithium-ion home storage systems. Fig. 1: Field capacity tests and validation of the capacity estimation method.