It depends on your collapse threat model. In any case, my assumption is that serious preppers already have EMP-shielded laptops and solar panels for a SHTF scenario. And serious preppers are probably doing some datahoard as well. The point is that there are economies of scale in the datahoard. Most of the work of datahoard is identifying data worth hoarding, setting up your scripts, monitoring your webcrawler, etc. Once you've got a drive full of data, replicating that drive is comparatively easy. That's why it could make sense to start a business selling replicated drives.
Maybe there is room for an "all-in-one" product offering with an energy-efficient laptop, solar panel, and TBs of useful data, all protected in an EMP storage case for the event of solar flare.
Nuclear EMP is a big risk to all electronics in a huge area. Solar EMP is millions of times weaker and measured in volts per kilometer. Anything unplugged or even just off-grid won't notice. Even on the grid the biggest risk isn't really the extra voltage on long wires but that some big transformers and other equipment are too noise intolerant and magnify issues.
Maybe there is room for an "all-in-one" product offering with an energy-efficient laptop, solar panel, and TBs of useful data, all protected in an EMP storage case for the event of solar flare.