Solar window - This will definitely knock about power firms - imagine generating your own power!
https://www.youtube.com/watch?v=2lARfv2VlP8

Graphene - https://www.youtube.com/watch?v=0EaaZcAYRFo

Stem cell advancement - cancer cures and anti-aging technology - regrowth of limbs and organs just like a lizard when it loses its tail or a starfish when it loses its limbs.
http://news.discovery.co...el-prize-chemistry.html

Cold fusion - another knock about for power firms esp nuclear energy firms.
https://www.youtube.com/watch?v=9E3IFudAPAc

Natural gas together with geothermal - will be more useful than oil in 2 decades.

Cloud computing - this will kill the PC industry hands down. I like google as a stock on their cloud computing strategy and most of the social media stocks - but not facebook.

Now your homework is to find out who will be the industry leaders and followers and follow the money...

In 15 years time, the technology breakthroughs of the 90's will be so obsolete.

What you said!

Hisah Graphene is many years away from being utilised commercially but will reshape many industries including computing and IMOM will probably render cloud computing technology as we know it today obsolete.

"Natural gas together with geothermal - will be more useful than oil in 2 decades."
Now this I agree with! The global deposits for natural gas are consistently under utilized, especially considering its supply excess. Prices are still rock bottom.

I was just browsing through some websites about this type of investing, (now I am curious after reading through these posts), and this one has a lot of information on water, natural gas, and oil: http://www.energyandcapital.com/ and it seems to agree with what hisah posted.