I hear that quite a bit of the power infrastructure in the US is well past its life expectancy with more coming due for replacement over time. If anything, a national energy plan should account for replacing, upgrading and modernizing a lot of the existing electrical infrastructure since its so critical to the foundation of our current society
Not to mention how long it would take to build back up- even with 24/7 work, it could take weeks or months to rebuild while solar has a much shorter lead time, especially if there are stockpiles of panels around