The difference between absolute poverty and "the top level of development"

According to the Global Energy Network Institute, it's at least 4000 kWh and $5000 per capita PPP (NextBigFuture):

About 1000-2000 kwh per year per capita is needed to get out of the worst quality of life and shortened life span. Per capita electricity usage also correlates to per capita income. Both correlate to life expectancy and quality of life.