17:44 Oct 8 

The solar energy is always converted into electricity and supplied to individual consumer loads or into the grid (the mains). It is impossible (at least disadviced to supply energy from the mains into solar pannels, what would lead to overtemperatures and desintegration of the pannel.
Which energy is sent from which component to which other device? Or should "evacuation" means that produced energy is "burned" anywhere, if the grid do not accepts supply?

07:38 Oct 8 

It has to do with energy transport, yes, but I need a term that conveys the idea that this is the energy produced by the photovoltaic plants that is transported "back" to the mains, not the other way (not the transport of the energy/electricity required by the photovoltaic plants to work). Evacuation conveys the right meaning but does not sound right in the electrical field.

23:36 Oct 7 

should be understood as supply or energie transport ? Or is this a disconnetion of lines?