Panels would be build elsewhere, installation is once in two or three decades, maintenance is minimal and low skill. The only profit is land lease, which will only benefit those that have plenty of money already. So I think no, this won't bring jobs or wealth to North Africa.

Unless you mean to build solar manufacturing plants, which even then have very limited applicability for unskilled human labor, the installation and upkeep of solar are absolutely nothing compared to the human cost of coal, oil, or even to a lesser degree nuclear.

It also has high winds with airborne, highly abrasive sand. Panels don't last long there unless you clean them daily. I can't immagine that happening for utility-scale installations.