Yeah, nuclear wants storage (or gas peakers) just as much as renewables do.
If nuclear power is trying to match a fluctuating load it needs storage for a day or two, to escape the Xenon dead time. But solar power for air-conditioning only needs an hour or two of storage to bridge from peak solar at noon, to maximum demand mid-afternoon.
On the other hand I live in Scotland. Solar power for space heating needs to save the summer sun for six months to heat homes in January. Ouch! Adding a day or two of storage to a nuclear power plant is much more practical.
Nuclear is prone to similar issues - statutory outages for inspections and refuelling, and emergency outages which often affect multiple plants at the same time (eg. a cracked steam valve in one plant requiring remediation on the same component in the others).
Keeping existing gas generators around, ready to be put into use when needed, is the simplest way of dealing with this until sufficient storage capacity is built out.
So it’s more of an issue when you want to use that excess solar to power your computer in winter.
If not nuclear, I think the northern regions need to focus on geothermal (Quaise?) and trash burning (yes, recycle first, but eventually everything non metal degrades and should be incinerated)