Assuming open is required, and as is required, the following 197 results were found.
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Has ANYBODY - other than ME - tried running any version of SAM (particularly SAM 2020.11.29 r1 - or the latest one, SAM 2020.11.29 r2) with a computer running the latest Windows 10 which is Version 20H2? I can't find anyone in this Forum who does. Until...
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Since my last posting, I had a friend called SOL download SAM 2020.11.29 and then carry out the same test with PVWATTS that Steve recommended. After doing step7 in Steve's test with PVWATTS, SOL produced the "Screenshot SOL.png" file attached. SOL's...
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To use the SamUL script in the sample file Power Tower Field Optimization.zsam in your own file: 1. Open the sample file. 2. On the Param Storage Script tab, click the Export Script to a File button, and save the .sul file to a folder on your computer....
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Dear Sol, SAM models self shading of rows of modules within each subarray. As you suggest, it assumes that each subarray is physically separated, so it cannot model shading of modules in one subarray by modules in another. You could use the 3D shade...
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Hi Paul, Thank you for your response. I do understand what you explained. The fact is how much should the Voc decrease as the cell temperature increases. This is usually expressed as a temperature factor, in the present case, -0.31 %/°C (relative to...
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Hi Paul, thank you for the reply. I am sharing an Excel sheet, which was created by SAM (Data Tables > Send to Excel). The data have been filtered as to display only points under 995 < G...
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Hi Giovan, As you mention, this seems like it might be caused by not setting the environment variables to point to the SAM repositories as described in the wiki: github.com/NREL/SAM/wiki/Windows-Build-Instructions Did you close and restart Visual Studio...
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Another possible cause of the problem occurred to me. Before I installed the new Windows 10 Version 20H2 on the old computer having the older version of Windows 10 previously referred to, I had to completely "wipe" the hard drive. This meant that any...
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Hi Lina, If you just need access to the old module library, the easiest may be to download the appropriate legacy version of SAM from sam.nrel.gov/download, install it, and find the library CSV file in the libraries folder of the installation. The link...
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Hello, The PVWatts model in SAM 2103.1.15 provides two mounting options for fixed arrays, and those options are both described in SAM's Help system: For systems with fixed arrays, you can choose between an open rack or a roof mount. Open rack is...
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Dear Paul, Im using the Sandia Model.This model used empirically determined coefficients (a,b, dT) to predict module back surface temperature as function of irradiance, ambient temperature and wind speed. The coefficients were found to be representative...
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Hi Soheb, SAM has a separate battery life model that calculates the degradation in battery capacity over time that accounts for number of charge/discharge cycles, depth of discharge, battery temperature, and battery age, so you do not need to specify a...
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Wind resource data downloads are not working in SAM 2022.11.21 r1. We will fix that for the next update.In the meantime, use the attached LK script as a workaround: * Download the attached wtk-download.lk script. * Start SAM and create or open a wind...
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In SAM 2022.11.21 r2, there is a small bug that causes an error message to appear when you go to the Electric Load page for behind-the-meter (distributed) configurations without storage: This error does not affect SAM's functionality or simulation...
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Hello, As you note, it is not possible to see the flux map data in SAM 2014.11.24 and later versions. We hope to make that possible in a future version. For now here is a workaround solution that is somewhat tedious, but will introduce you to the SAM...
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Hello, You could use the "Combine Systems" macro to add the hourly output of the two systems together to approximate the performance of a hybrid power tower / PV system. UPDATE: As of SAM 2021.12.02, the Combine Cases macro is replaced by the Calculate...
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Hi Paul, I believe I am having the same "Attribute Error" issue when using the PySAM JSON Generate code option. I am following the Export SAM from GUI example (), adapting for a PV-Battery, Single owner case. The code I am running is: import json import...
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Hello, I am running pvwatts8 using pySAM for multiple locations in my study area. I've run into an issue where the LCOE output does not reflect the output when running the same location and system size in the GUI of SAM. Below is the code I am using,...
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Dear Paul, Thank you for the response! I've tried doing exactly what the link sent by you says and I have an AttributeError. The code is the next one: import json import PySAM.TcslinearFresnel as fsl import PySAM.Grid as Grid import PySAM.Utilityrate5...
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I'm using SAM 2016.3.14 on MacOS 10.11.6. If I open a .sam file and don't change anything, and then try to close it or open another project, SAM says the file has been modified and asks if I want to save my changes.I'm using SAM 2016.3.14 on MacOS...
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