Stacked bar graph although not the best as it is hard to compare the amounts of each type across countries. A user would still get an impression of the overall makeup of each country's renewable energy usage. Stack Bars also do not convey the overall quantity of each countries energy usage and the total of each each renewable type.

Side by Side bars are another option as they allow you to have a uniform axis for the total amount of energy and then group the bars by either country or renewable type.