With all that being said, it is a great position to strive for and the renewable energy industry is only going to grow so it is a good one to get into. Although college may not necessarily required, the best path would be a four-year degree in chemical/bio/industrial engineering and a starting job as a process engineer at a plant. Or you could possibly pursue a business degree in operations and take a related operational role. You would then work your way up over time taking on different roles and increasing levels of responsibility. As for the schooling itself, any engineering degree is going to be difficult to obtain, you can expect a lot of math and science, and will need to be diligent about studying, but definitely doable and very rewarding! Hope this helps!