Distributed can do redundancy. It’s relatively cheap.

Consider a family with two cars instead of one. How often do they have zero working cars? The correlated failure rate squares while the cost doubles.

My home now has a grid connection, house battery and solar, a caravan with mounted solar/battery/fridge/inverter beside it, and I also have a portable “powerstation” and portable solar panel which is basically a UPS. My fridge contents and phone charging needs have a several extra 9’s now for costs that have scaled very well.

These systems are tech that is improving rapidly. In some years these African farmers with their increased yields will likely add a bigger, second solar & battery system. In a village you can run a cable next door. Etc.