clean energy

So I just wanted to know everyone's thoughts on clean energy-related IB. Most clean-energy companies are small now but, imo, will be huge in the future.
I think there will be a massive clean tech boom similar to the dotcom boom but it will be more sustainable (pardon the pun).

Just wanted to hear you guys say something about your outlook on this industry and how a prospective might try orienting his/her IB career around it.