The Week in Cleantech is a weekly roundup of our favorite clean tech 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 Monday, David Roberts at Gristmill gave us Vinod Khosla’s forecast for 2007 (thanks to Tyler at Clean Break for this one). On Monday, Jack Uldrich at The Motley Fool noted how the solar industry is getting its lobbying act together and going to Washington. Stocks discussed in the article are: BP [NYSE:BP], SunPower [NASDAQ:SPWR], Kyocera [NYSE:KYO], and General Electric [NYSE:GE]. On Monday, Peter Lynch went over what happened on the solar IPO front in 2006: The Year of the Solar IPO Boom. On Tuesday, Tate Dwinnell at SelfInvestors.com gave us the heads up on some State of the Union trading opportunities. Stocks discussed in this article are: PowerShares Clean Energy ETF [AMEX:PBW] and several of its constituent companies. On Tuesday, Seth Jayson at The Motley Fool warned us to keep our hands out of the turbine. The main stock discussed is Capstone Turbine [NASDAQ:CPST], but the article as a whole is good in highlighting one of the main problems facing many alt energy companies: high cash burn rates. On Thursday, Brett Arends at TheStreet.com gave us a list of truly ‘alternative’ energy stocks that could shine. Stocks discussed in the article are: WFI Industries [TSE:WFI], US Geothermal [OTC BB:UGTH], Fuel Tech [NASDAQ:FTEK], Nova Biosource Fuels [OTC BB:NVBF], and Covanta [NYSE:CVA]. On Friday, Jennifer Kho at Red Herring told us how cleantech, as an asset class, is growing up. On Friday, Autopia at Wired informed us that Tesla Motors was bringing a bit of California to Michigan.