- Posts: 3
New offshore data throws "exec fail(windpower): error reading wind resource"
- WillStewart
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                17 Mar 2024 12:37                #12991
        by WillStewart
    
    
 	
					
                                	
			
				    
            
            
            
            
            
                                
    
                                                
    
        New offshore data throws "exec fail(windpower): error reading wind resource" was created by WillStewart            
    
        Version: SAM 2023.12.17 r1
I downloaded the recently added Offshore South Atlantic data for -75.491638 36.896313 and used this to load wind resources (see attached). After filling out other tabs, hitting "Simulate" resulted in the following;
```
exec fail(windpower): error reading wind resource file for interpolation at time step 0:
Simulation windpower failed :This weather file appears to contain a leap day. Feb 29th will be skipped. If this is not the case, please check your wind resource file.
```
Note: I had to add in -5 to the data time zone, which came blank
Is this new wind data in the right format?
     
    I downloaded the recently added Offshore South Atlantic data for -75.491638 36.896313 and used this to load wind resources (see attached). After filling out other tabs, hitting "Simulate" resulted in the following;
```
exec fail(windpower): error reading wind resource file for interpolation at time step 0:
Simulation windpower failed :This weather file appears to contain a leap day. Feb 29th will be skipped. If this is not the case, please check your wind resource file.
```
Note: I had to add in -5 to the data time zone, which came blank
Is this new wind data in the right format?
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- Paul Gilman
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                18 Mar 2024 10:51                #12995
        by Paul Gilman
    
    
            
            
            
            
            
                                
    
                                                
    
        Replied by Paul Gilman on topic New offshore data throws "exec fail(windpower): error reading wind resource"            
    
        Hi WillStewart,
A description of the "SAM CSV Format for Wind" is here: samrepo.nrelcloud.org/help/weather_format_csv_wind.html .
To fix your file:
Paul.
    A description of the "SAM CSV Format for Wind" is here: samrepo.nrelcloud.org/help/weather_format_csv_wind.html .
To fix your file:
- Change the file name from .srw to .csv so SAM will recognize it.
- Remove the rows for February 29 to avoid the error about leap day.
- SAM's wind power model requires atmospheric pressure data, which is missing from your file.
Paul.
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