Featured in Moving in circles – 09-2024

The significance of state-of-charge

Everoze Partner Nithin Rajavelu considers the crucial importance of properly measuring and managing state-of-charge (SoC) for the efficiency, longevity, and safety of battery energy storage system (BESS) projects, especially in lithium ferro-phosphate (LFP) batteries, which are widely used for large-scale storage.
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pv magazine
Inaccurate measurements of SoC can prevent battery storage assets from participating in ancillary and balancing service markets. | Photo: Business Wire

 SoC is typically expressed as a percentage of a battery’s total energy storage capacity. For example, an SoC of 50% means a battery is half-charged. Accurate and reliable SoC measurement is essential for optimizing battery performance and maximizing revenue. Inaccurate SoC measurements can have significant financial implications. For instance, overestimating SoC can prevent an asset …

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