Comment Reasons for solar/wind (Score 2) 17
1) Not tied to frequent fuel deliveries
2) Does not require much that humans don't already need - sun and air. (Variability will affect your power storage needs)
3) It can be deployed almost anywhere, and even be portable.
The main issue is energy density - if you want to drive hundreds of kilometers a day, run your AC all summer and heat all winter, etc., you're going to need a lot of land dedicated to power collection.
I imagine there are a lot of places in a continent like Africa where people might be happy to get by on what solar can give them in return for not having to worry about burning oil or anything else to get electricity.