Paul,
First off, thanks for taking a look at this.
Note, the temperature coefficients listed under SAM Electrical Specifications in your screen capture reappeared after each simulation failure; even after I edited them to the correct Temperature Ratings listed on the manufacturer's cut sheet. As mentioned in my previous reply, I changed the module type to make sure SAM could successfully simulate my design and that worked.
However, I just called up the CEC User Input option under models and low and behold there's the iTek Energy HE 275 Watt Solar Module with the correct temperature coefficients. So, SAM saved my input data for that specific product. Yet, when this module's data is selected the subsequent simulation fails.
I'll try converting the temperature coefficients to degree/C and see if this works. I recall that the when using the November '14 release, those inputs resulted in a successful simulation.
Thanks,
Mike -