POA Irradiance file is not readable by SAM

Hi,

I have my own POA irradiance data from our PV bifacial system. It's in 15-minute resolution and I have tried several times to upload the file but SAM says that it's not able to get the timestap in the weather file. I have to clarify I have the POA irradiance from a reference cell and also temperature. What should I do? 

Hello,

SAM requires a weather file with irradiance data and meteorological data. Your file only has irradiance data, so it will not work with SAM.

One option would be to download a weather file from the NREL NSRDB for the year (and time step) that matches your POA data, and then add your data to the file as a column with the heading "poa."

You can find a description of SAM's CSV format for Solar in Help under "Weather File Formats."

Note that SAM requires a weather file with one year of data starting on January 1 and ending on December 31.

For more details see these forum conversations:

sam.nrel.gov/index.php?option=com_kunena&view=topic&catid=5&id=4310&Itemid=487#12346

sam.nrel.gov/index.php?option=com_kunena&view=topic&catid=5&id=1375&Itemid=487#4275

sam.nrel.gov/forum/forum-general/1514-enter-poa-data-in-weather-file.html#4693

Best regards,
Paul.