Clearly you don't understand...it is not "exchanged", or "put in" to "take out" later.
To help explain, here's Australia on September 16th...
All of the people "putting in" had far too much supply, and so the volume of renewables (solar and wind) between the solid red line and the dotted red line were curtailed (that means turned off) to manage the grid.
Then right about dinner time, there WAS no solar, either roof top or industrial...requiring gas, hydro, batteries and overwhelmingly coal to meet the evening peak.
It's a simple to grasp concept, however people on this site resort to simplistic put in/take out descriptions of what they would like to think they are signalling about their virtue.