On this note, I would say a huge opportunity here is better energy storage. Perhaps along the lines of micro hydro consumer compressed air some new type of b

On this note, I would say a huge opportunity here is better energy storage. Perhaps along the lines of micro hydro consumer compressed air some new type of battery (https://news.ycombinator.com/item?id=21319039 https://news.ycombinator.com/item?id=21319039) carbon nanotube springs We have lots of methods of generating electricity but storing it is an issue.