Paulo Oliveira
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Posts posted by Paulo Oliveira
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Hello,
I'm doing a grid-connected project on PVsyst 6.70 and this is the first time that I encounter this error. On the advanced simulation and generating the output file I normally use 5 defined variables: 1- Horizontal global irradiation; 2- ambient temperature; 3- effective Global, corr. for IAM and shadings; 4- Energy injected into grid; 5-Performance Ratio. As mentioned before never had any problems using these parameters on the .CSV file. The problem that I have now is some abnormal values on the PR results, 13 PR values with a -1317.8 which seem not to correct.
see bellow:
PVsyst v6.70
File File date Description
Project Desicor_1.PRJ 07/05/18 12h06 Desicor_1
Geographical Site Brunheiro_PVGIS_SAF_1998 to 2011.SIT 07/05/18 12h06 Brunheiro Portugal Europe
Meteo data Brunheiro_PVGIS_SAF_SYN.MET 08/05/18 09h59 Brunheiro Synthetic
Simulation variant Desicor_1.VC3 07/05/18 13h53 320 kWp
Simulation date 08/05/18 10h00
Simulation: Hourly values from 01/01/90 to 31/12/90
date GlobHor T Amb GlobEff E_Grid PR
27/01/1990 07:00 0.1001 9.1302 0 -0.008 -1317.8
16/02/1990 18:00 0.1001 11.6 0 -0.008 -1317.8
14/03/1990 06:00 0.1001 8.5198 0 -0.008 -1317.8
10/04/1990 19:00 0.1001 21.67 0 -0.008 -1317.8
20/04/1990 05:00 0.1001 7.5902 0 -0.008 -1317.8
21/08/1990 05:00 0.1001 17.95 0 -0.008 -1317.8
01/09/1990 19:00 0.1001 24.2 0 -0.008 -1317.8
20/10/1990 06:00 0.1001 15.67 0 -0.008 -1317.8
27/11/1990 17:00 0.1001 13.39 0 -0.008 -1317.8
28/11/1990 17:00 0.1001 11.37 0 -0.008 -1317.8
12/12/1990 07:00 0.1001 7.8202 0 -0.008 -1317.8
22/12/1990 17:00 0.1001 15.68 0 -0.008 -1317.8
23/12/1990 17:00 0.1001 12.74 0 -0.008 -1317.8
Can you please help me solving this?
Performance Ratio BUG
in Problems / Bugs
Posted
Greetings,
I'm doing a project and I've found out a bug on the PR calculations.
In the PVsyst Report attached the PR average for the first year is 80,9%PVSyst_Report_Fortissue 2,73 MWp (JA 540W).zip, when in fact the calculations are wrong the correct value must be 83,5%.
I've downloaded the User Hourly and checked the values in a excel PR Bug excel file.zip, all figures are correct, only that PR percentage.
This is the first time that this has happened on the hundreds of projects that I've done.