Cliff Hansen

> But I expected the difference to be one order of magnitude lower. I would guess that the change in annual energy is rather small in the neighborhood of the...

The 1050nm "enhancement" - by definition, the IAM is the ratio of transmitted irradiance at AOI to the transmitted irradiance at AOI=0. How does 3% more irradiance get transmitted through...

The "fail to converge" appears to be intrinsic whenever the reverse bias term is activated (`breakdown_factor` > 0) when using either method `newton` or `brentq`. (Using `brentq` returns the failure...

> Could change the breakdown approximation to something non-vertical? I considered adding a second reverse bias model: - extend the IV curve to negative voltage using the standard single diode...

> Instead of clipping, could you perhaps drop the (no longer significant) exponential and solve remaining terms explicitly where needed (V

> Maybe consider consulting pvmismatch? ~~Does pvmismatch have an exponential-like model for the reverse bias current (breakdown current)?~~ Yes it does but I don't understand how it all works. https://github.com/SunPower/PVMismatch/blob/b391a98c5ded478a73b3c6a08e8de89024be5156/pvmismatch/pvmismatch_lib/pvcell.py#L238...

> Aha. So the reverse bias current is accounted for when solving an individual IV curve without specified I or V values - when newton isn't needed. When doing "V...

@JamieMBright All's fine. I am porting from MATLAB to python to add this technique to pvlib, we'll make our best guess for now and can certainly adjust when you are...

@JamieMBright any chance you've been able to look into this issue further?

Thanks, that's what we'll assume and move ahead. Best wishes to you.