Energy Storage for Peak Shaving -- issues

[CleantechPro]

Hi, I ran a few simulations for a stand-alone ground-mount solar system with about 6 MW_dc solar/PV DC rating (without any energy storage) with success.

Later on, I added a properly sized energy-storage unit (BESS) to capture the excess generation during peak generation instances, and discharge those excess generation (which would otherwise be lost w/o BESS) into the grid during off-peak hours.

While the simulation ran with success, EBatDis in the PVsyst report has remained nearly 0 for all months (i.e. the BESS hasn't really been utilized at all).
I understand that PVsyst's storage facilities/capabilities are rather limited that but this simple case should have worked with PVsyst.

Any help would be appreciated. Thanks.

[André Mermoud]

I don't know. To our knowing, the "Peak shaving" feature works  quite well. 

Please send your whole project to  support@PVsyst.com, using "Files > Export projects" in the main menu,   in order that we can analyse your problem.