What are good stocks in alternative fuels sources?

Fernando F: What are good stocks in alternative fuels sources?
I am looking for good stocks in alternative fuel. Can somebody give me a good suggestion on companies to research.

Answers and Views:

Answer by Paul M
Try this Forbes.com article:

https://www.forbes.com/2007/09/11/energy-bubble-solar-pf-guru_in_mm_0911energy_inl.html

Answer by perdidobums
There are some ETF’s that hold alternative energy stocks. You can research these at www.etfconnect.com and also at www.powershares.com PBW and PBD. Good luck!

Answer by Barry R
Nova Biofuels, (biodiesel)

Cosan (Ethanol), a Brazilian company

Tower Tech (wind towers)

I added a wind energy stock, because I think that is the best alternative energy sector.
Good luck.