[pieterv]

Anyone know if it is OK to mix panels of slightly different voltages:
one is 40W with Voc=20.5V and Vmp=16.9V
other also 40W with Voc=22V and Vmp=17.5V.

Can I wire those in parallel? How would they affect one another?

Grateful for any advice,

Pieter

 

[sallytrafic]

In my experience that would be fine the range of Voc output from panels of identical nominal specification is often wider than that.

 

[pieterv]

Thanks for the info, Frank.

 

[sallytrafic]

The only problem might come with a maximum power point tracking (MPPT) regulator but I guess it would find a happy medium

 

[pieterv]

The only problem might come with a maximum power point tracking (MPPT) regulator but I guess it would find a happy medium

No, it has a PWM regulator.