I think the problem with storing energy in western Europe, is that you need most energy for heating in winter, when there is hardly any solar power. So any convenient daily pattern doesn't work. For wind, you can probably heat up during the night assuming there is less other demand for electricity.

However, that doesn't help during period when there is hardly any wind. It is not as if you can stop heating your house for a couple of weeks.

I'm curious have this will play out. On a bright summer day, there is plenty of solar power. So it make sense to do everything during the day. During winter, it is better to distribute the load and move load to the night. That requires quite a bit of signaling to get right.