Hello SAM staff.
I have two questions on the way SAM calculates the energy imported/exported at the battery DC bus.
I modelled a battery whose DC nominal capacity is 4,073.472 kWh
1) When I charge such a battery, from SOC=0% to SOC=100%, I get that the total energy imported at the DC bus is -4383.1 kWh (time step is 5minutes)
Energy calculated as follows:
How is it possible to charge the battery 7.6% more than its DC nameplate capacity?
2) When I discharge the same battery the total energy exported at the DC bus is 4278.6kWh :
Energy calculated as follows:
How is it possible to discharge the battery 5% more than its DC nameplate capacity?
Attached you find the case of such an example.
Many thanks in advance
Best regards
Francesco