Advanced countries of the world couldn't have gotten to where they are if they had poor electricity supply. This is what some third-world countries are failing to understand.
Ethiopia understands this and that is why it is constructing one of the largest hydro-electric dams in the world. The dam is 90% complete and when ready, it would supply electricity to parts of Ethiopia currently lacking as well as to other neighbouring countries.
Here is a list of countries with the worst electricity supply in 2017.