From Vaclav Smil:
The sun-drenched tropics, for example, turn out not to be that sunny. The fact is that most of coastal Nigeria and the Brazilian Amazon receives much less radiation annually than Georgia or Kansas, and nearly all densely populated regions of Southeast Asia, from China’s southernmost provinces to Sumatra and Kalimantan, have annual insolation comparable to that of northern France and southern Englad — locales that are not usually perceived as sun-drenched.
If you ever want to learn anything about energy and the environment, you can do no better than to read Professor Smil. He actually, like, knows what he is talking about.