It's contrary to what most people think, but the later a country modernized, the better the infrastructure (generally). You basically get to skip the innovation stages where you have a hodgepodge of systems that eventually coalesce into one and all the upgrading required to bring it up to the newest standard. If you have a lower population and smaller geography, it is often easier to upgrade as well.

Albania: 90% Hydropower, $12150 GDP/person

Bhutan: 99% Hydropower, $ 4700 GDP/person

Nepal: 23% Imported $ 1381 GDP/person

            rest Hydropower  (2/3 of energy: firewood etc.)

Paraguay: 100% Hydropower, $ 7990 GDP/person

Iceland: 99% Hydry/Geo, $90000 GDP/person

Ethiopia: 88% Hydropower, $ 1350 GDP/person

DR Kongo: 98% Hydropower, $ 760 GDP/person , 13% of country has electricity

Not sure how this is applicable (and in many cases: desirable) for countries that do not have significant hydropower potential or maybe want a GDP greater than $760 per person per year.

Those "countries in the sticks", one report says that the DRC only has at most 20% of the households on electricity. This report says only 10% https://www.trade.gov/country-commercial-guides/democratic-r...

On the other hand, balcony solar power will be a game changer for the world, provided your neighbors won't steal the panels like they do the catalytic converters in my neighborhood.