Statista is a database of ready-to-use infographics on just about anything. Here's one on electricity generation from wind. Did you know that...

"Denmark is well on its way to achieving its goal of 50 percent wind power by 2020. In 2013, the Danes generated an impressive 33.8 percent of their electricity through wind, a share most other countries are eyeing with envy."

This website is great for market research and competitive intelligence, and the info is perfect for that Powerpoint presentation. Search it now for the information you need.