Dear, Paul,
Thank you for your answer. I've built the wheather file as you mention. Here below you can see the 6 first rows of my file:
Year,Month,Day,Hour,Minute,GHI,DNI,DHI,Tdry,Twet,RH,Pres,Wspd,Wdir,Snow Depth
2015,1,1,0,0,0,0,0,17,0,50.6,1053,1.4,353,0
2015,1,1,0,15,0,0,0,17,0,50.8,1053,1.4,353,0
2015,1,1,0,30,0,0,0,17,0,50.9,1053,1.4,353,0
2015,1,1,0,45,0,0,0,17,0,51.1,1053,1.4,353,0
2015,1,1,1,0,0,0,0,17,0,51.3,1053,1.4,353,0
Then I put the wheather file csv in the SAM wheather libray and I try to run the model with this wheather file with 35040 rows. Then, the problem I had is still there and the result of the simulation is totally incoherent. I've tested the results with the same wheather file but with 8760 rows (each row the mean hourly value that I have previously calculated with excel) and the result with 15 min step is much lower, I mean 50,805,084 KWh of power output instead of 121,329,544 KWh which is the result with hourly step.
I beleive that the model only take into consideration the first 8760 rows of the csv file and I don't know why. I don't know which step I skip or what I am doing wrong.
Could you help me? It is something more that I have to do before running the model? Do you know where is the problem?
Thanks in advance,
Regards