Take a look at the example files that have solar collectors in them to learn how to create the solar collector side.
For the heat pump, I would start by trying to connect the source side of the heat pump to the demand side of your solar collector water heater.
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Karen
Dear,
I am trying to model a system that combines a solar collector and a heat pump as a water heating system. The solar collector provides heat to the heap pump evaporator in order to increase the evaporating temp/pressure and therefore increasing the COP and the heat pump capacity. Could you give a suggestion how to model that in EnergyPlus?
Thanks,
Alberto Hernandez Neto