NCAP_AFC and seasonal storage

[Kristina.Haaskjold]

    Hi again Antti,

Following up with a new question regarding how to interpret the results of energy storage capacities on different lengths of timeslice cycles.
We are now running with hourly simulations, with a total of 8760 timeslices (see the definition attached).

When looking at result for a 4h storage, defined as STG, DAYNITE, I have the following values:
VAR_CAP = 152.2 MW
Max(VAR_ACT) = 18.5 GWh
Max(VAR_Fin) = Max(VAR_Fout) = 2.6 MW

When calculating energy capacity, I'm using the equation: VAR_CAP × PRC_CAPACT × NCAP_AFC(ACT,tslvl) / G_CYCLE(tslvl) = 152.2 MW * 8.76 * 4/24 / 365 = 0.61 GWh. We should only be changing the TS_CYCLE and not the G_CYCLE.
How can it be that the Max(VAR_ACT) is higher than this? Shouldnt it be the same as one timeslice represent one hour now? Also, I found it strange that the Max(VAR_Fin) is so small compared to the VAR_CAP capacity?

[Antti-L]

Dear Kristina,

Thank you for the follow-up.  Unfortunately, I am having difficulties to see what's going on here. Could you possibly provide the model files (*.DD, *.RUN) so that I could reproduce what you have there, and explain it then?  If you can do that, please also mention which process is in question here (the 4h storage) and in which period, for the results you showed?
  VAR_CAP = 152.2 MW
  Max(VAR_ACT) = 18.5 GWh
  Max(VAR_Fin) = Max(VAR_Fout) = 2.6 MW

[Edit:] The issue appeared to be related to managing different model versions