Actually, it's not just a matter of averages, but also of availability of actual storage capacity as well as other loads that can adapt to availability. Mind yo

Actually, it's not just a matter of averages, but also of availability of actual storage capacity as well as other loads that can adapt to availability. Mind you that you can store energy in more forms than what can easily be converted back into electricity. Cooled warehouses, to take a random example, in many cases can cool down a few degrees further than required when there is plenty of energy available, and then avoid using electricity during peak load times. If you can use all the warehouses on the continent to drop some load off the network when production drops unexpectedly in some region, that makes things much more stable than if you only have the capacities within one country at your disposal.