Renewable energyMay 30, 2006 11:54 am

The most cost effective technology around for harvesting solar energy is developed by a company called Nanosolar.

Without getting into technical details, their products don’t use much raw material, last long and sound good all around. They are not listed yet but watch out for their IPO since you might get a bargain. Current investors include the google guys and the company is already quite hyped but still definately worth a look.

Renewable energyNovember 21, 2005 1:23 pm

Distributed Energy Systems (DESC) is on the watchlist.
Among other things, the company manufactures cost effective hydrogen fuel cells and wind turbines. As a rather big company with a broad customer base and working products it is a low risk investment. It doesn’t have the potential most of the speculative investments this blog will focus on do but it is a safe bet.