Battery degradation assessment and warranty evaluation

Independent verification of battery performance over time for your application through state-of-the-art modelling and testing

If you are developing, financing or operating an energy storage project, you need to know how the battery will perform over time. Will it degrade in line with the capacity warranty? How does the specific application affect degradation? Is replacement or a maintenance plan the best option over the project lifetime? Reliable independent engineering analysis for battery degradation lets you answer questions like these with confidence. 

Identifying degrading factors
Our battery degradation service is applicable for a project’s design and/or operational phases. It covers everything from estimating battery degradation based on usage profiles and intended applications, to evaluating compliance with manufacturer warranties.

For the degradation assessment, DNV utilizes our state-of-the-art battery degradation modelling methodology (Battery AI) derived from independent cell testing data. We can estimate degradation for existing battery storage assets by evaluating operational data to identify key degrading factors like temperature, c-rate, throughput and SOC variation. We can also estimate degradation for new battery storage assets by modelling battery operation for intended applications and calculating the consequent key degrading factors.