Battery storage double check

[Ryo Ishida]

Hi all,

I'd like you to double check how to model the storage.

I intend to model 4-hour storage batteries and input the unit cost per kW.
I understand AFC(NRG) to be the input and output capacity per GW and AFC(ACT) to be the ratio of GWh to 24 hours.
Also, I understand that AFC(NRG) to be the input and AFC(ELC) to be the output capacity, is that correct?
Also, I understand that AFAC is the upper limit of the yearly utilisation rate of storage, is that correct?

Please inform if there is anything wrong.
Thank you

Ryo