The Week in Cleantech is a weekly roundup of our favorite cleantech and alt energy blog posts and stories from across the web. If you know of a good piece that you think should be included here, don't hesitate to let us know!

This week, we particularly liked...

On Sunday, Marc Gunther told us all about the greening of Goldman Sachs. As our regular readers know, Wall Street's involvement in environmental finance is one of our preferred topic of discussion.

On Monday, Dana Childs at Inside Greentech told us that there might be some good investment action at the pump. In cleantech/alt energy, it's always a good idea to keep the whole value chain in mind!

On Tuesday, EDP 24 reported on an English study that dispels the NIMBY belief that wind farms kill property values. Thanks to Renewable Post for this one.

On Wednesday, the Green Car Congress informed us that the efficiency gains associated with hybrid vehicles might be nullified by North Americans' insatiable appetite for large and fast cars. Tougher fuel efficiency standards, anyone?

On Thursday, Notable Calls reported on a call of note by RBC Capital. The stock discussed is Zoltek [NASDAQ:ZOLT], but the article is mostly interesting for the parallel it draws between silicon for solar and carbon fiber for wind. This is a thesis worth exploring, especially if you're bullish on wind. Thanks to Seeking Alpha for this one.

On Friday, the WSJ's Energy Roundup discussed alternative energy's cover moment. Call me biased, but I think the momentum behind alternative energy is so powerful and multi-faceted that the future can be nothing but bright for the sector. That's not to say, however, that there aren't oodles of alt energy stocks there that I wouldn't touch with a 10-ft pole.

On Friday, the Clean Slate Report gave us the low-down on a cool China cleantech site. It goes without saying that every serious cleantech investor out there should keep a very close eye on China.