I am trying to conduct a process flow to create a product system. However, what I have placed into my inputs and outputs are elementary flows (and can only be found within elementary flows). I have realised that elementary flows cannot be used for connecting processes and are not shown in the graph. Therefore, when creating my product system, nothing shows up.
I am trying to create 1kg of hydrogen using electrolysis methodology. For my inputs of creating hydrogen, I have "Energy, solar, converted - 39kWh" and "Water - 0.009m^3" (both elementary flows).
I would appreciate any help. Thanks.