These ones are consistently confusing:

Subarray 1 POA front total irradiance nominal
Subarray 1 POA front total irradiance after shading only
Subarray 1 POA front total irradiance after shading and soiling
Subarray 1 POA front total irradiance after reflection (IAM)

I’m tempted to change them to something like:

Subarray 1 POA front total irradiance nominal
Subarray 1 POA front total irradiance after shading
Subarray 1 POA front total irradiance after shading soiling
Subarray 1 POA front total irradiance after shading soiling reflection (IAM)