Murtz Posted February 2 Share Posted February 2 Hi I am conducting a multi-year ageing simulation. However, the options for degradation are only listed for PV modules/array. How can I include battery degradation? I have a grid-connected system with battery for self consumption. Thanks Link to comment Share on other sites More sharing options...
Murtz Posted February 2 Author Share Posted February 2 Hi Nevermind, I found an earlier post with a similar query. If anyone needs a solution, please see: Regards Link to comment Share on other sites More sharing options...
André Mermoud Posted February 6 Share Posted February 6 The battery ageing is not fully implemented in PVsyst yet. - The lifetime is indeed taken into account by evaluating the number of cycles and their depth during operation. This gives an evaluation of the battery replacement necessity, which is mentioned in the "Aging tool" results. - The capacity decrease is not yet implemented. Usually, the battery is considered "to be replaced" when it has lost 20% of its capacity. Please note that such a capacity variation has a low effect on the final yield of a usual storage system. - The increase of the internal resistance is also not taken into account, we don't have reliable information about this. It is obviously never mentioned on the datasheets. This will have an effect on the efficiency of the battery. NB: Improving this model is on our roadmap, but it wil not be done before a rather long time. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now