Ethanol and electricity co-generation could make up more of Brazil's energy matrix, argues Mr Jank.

ECONOMIST: Energy in Brazil

We know that the Brazilian energy matrix is a renewable source of energy that Brazil has.

WHITEHOUSE: President Obama, President Rousseff Meet in Brasilia

This makes Africa a central piece in the world energy matrix, and the area is getting some major attention.

FORBES: Best Chance For Energy Investors To Hit The Jackpot: East Africa