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BESS Health Estimator

Estimate your battery's degradation curve, remaining economic life, and warranty risk. Based on published degradation models and Arrhenius temperature correction. No signup required.

Asset Parameters
Frequency response / ancillary = aggressive. Peak shaving = moderate.
Alberta = cold. ERCOT = hot. PJM = temperate.
Enter your asset parameters and click "Estimate Degradation" to see results.

Estimates aren't enough. Get verified data.

This calculator uses published models. EnergyPassport uses your actual BMS data, cross-referenced against grid meter data through a 10-check physics validation pipeline.