What a great selection to choose from. Entry # 6 is up there, but if you hadn't present the others I would never be able to tell you what exactly made it special. The major design element are all similar, and the colors work wonderfully together. It was the arrows, believe it or not that made the difference. In each case, except number 6 the arrows tell a different story. In numbers 5 (love the sunburst effect) and 3 the arrows travel left to right. That doesn't say renewable to me. Similarly, in number 4 the two arrows meet which is attractive, but misses the essence of what we do. Entry 6 is the one where the arrows - like those in recycling logos - says renewable which translates in our industry to sustainable. Really beautifully rendered. Thank you.