You're not going to develop solar energy in the Sahara unless you have a very strong state involvement
And that's why it won't work. Top-down revolutions have a difficult time taking hold. What works is empowering the individual to increase their livelihood in a way that provides a mutually beneficial relationship with the rest of society. Imposing economic change via dictate or "imminent domain" results in discord, perhaps more so in a place like saharan Africa.