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[EnergyPlus_Support] Adding photovoltaic to the surface_heat transfer model

I have been using EP to model the performance of PV electric generator and its effect on the thermal performance of the building.

My understanding is that the PV on the building surface absorbs solar radiation and turns part of it into electric power.  EP calculates the electric generation using three models: Simple, EquivalentOne-Diode, and Sandia.  I am clear about this part.

When PV turns solar radiation into usable electric power, heat is generated in the cell, which leads to the increase of cell temperature and reduces the performance efficiency of the PV cell.  Plus, this changes the heat balance on the building surface.  It seems that EP considers this and offers "Heat Transfer Integration Model".  I can select from "Decoupled", "DecoupledUllebergDynamic"..., a total of six models.  

I looked them up in the EngineeringReference.pdf but failed to find a detailed explanation about how each model works.

I would like to know:

1. Where can I find detailed information about how these heat transfer integration models?  I am aware that InputOutputReference.pdf has a few lines for each of them.

2. When adding PV, it drastically changes the convective heat transfer on the building surface.  The produced heat, i.e., rising temperature of the cell will affect the heat transfer through the building surface.  Does EP take these into account and how?

Thank you very much for reading my long question!



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