SOC errors in LFP batteries: the $1 million per GWh challenge for BESS

Inaccuracy in state-of-charge (SOC) estimation that can reach up to 15% is a major challenge for LFP-based BESS projects, causing operators to miss out on more than 1$ million dollars per GWh of installed capacity, equating to around 5% of annual trading revenue for BESS in dynamic markets like ERCOT. The traditional BMS (battery management system) is no longer sufficient, but cloud-based predictive analytics can now bring SOC errors to below 2% deviation. This means operators can dispatch with confidence and capture the revenue their assets were built to earn. By Darya Rüwald Director of Battery Intelligence at ACCURE