Which are the companies to watch in clean tech? Most are definitely not household names but they are having an impact.
Below the photo is a list of some of the newsmakers in the renewable energy business, with a focus on start-ups. Along the way, you'll get a feel for the technology categories that define this corner of green tech.
1. Ausra: Originally from Australia, Ausra is one of the movers and shakers in solar thermal, a technology that is already competitive with utility-scale fossil fuel power generation.
Mirrors reflect light onto a liquid that makes steam, which drives … Read more