Attached is an article addressing the issue of connecting different types of solar panels together; whether in series and or parallel combinations.
I did not read the entire article, but it does address the main issue that not all solar panels necessarily have the same voltage and or current ratings, even in cases where the rated wattage is the same.
Basically, one would have to look at each panel’s Current-Voltage (IV) curve to estimate what impact connecting dissimilar panels together will have on the entire system.
Attached is a generic IV curve showing that any given panel can operate under many conditions, which allows some flexibility in using dissimilar panels.
https://solarpanelsvenue.com/mixing-solar-panels/
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