Hello,
I'm trying to download wind resource files for various locations in Iowa but have encountered several errors. Nearly every attempt results in an error:
"Failed to read downloaded weather file C:\Users\pathname.... Try the download again in case there was a problem connecting to the database."
I found that I could successfully download weather files for some lat/long combinations, but only at the 100 m. height. However, when I tried to run the simulation using these files, I receive the error:
exec fail(windpower): the closest wind speed measurement height (10 m) found is more than 35 m from the hub height specified (80 m)
Simulation windpower failed.
I opened the .srw files with a text editor, and indeed, the height was set at 10 m, despite selecting 100 m in the download window. The only workaround I have thought of so far is to manually change these 10 m values to 100 m, but this obviously results in very poor, inaccurate results for a large wind turbine. I've spent hours looking for the .srw files elsewhere on the NREL website, but have either encountered 404 errors, or have found metadata sets that don't provide the information I need. Even a csv file with hourly wind data at 100 m would be fine; I can model the turbine on my own if necessary, but just can't find the weather data anywhere...
It seems like there are some significant bugs in the weather file database right now. I'd appreciate any help or tips. Thanks.
Norm
