The Week in Cleantech

The Economist is currently running an interesting poll on whether we can solve our energy problems with existing technologies or whether we will need breakthrough innovations. Add your vote! On Sunday, Domenick Yoney at AutoBlog Green told us that electric bike sales were soaring world-wide. I'm not sure what's a good play on this, but an interesting trend to note nonetheless. On Monday, Matthew McDermott at TreeHugger told us about another biofuel feedstock we may not have considered. Earlier this summer, David Pauly at Bloomberg was telling us about yet another such potential feedstock, which apparently is...

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...

On Sunday, Tom Philpott at Peak Energy told us about The End of Food. The book, that is. While food is neither alt energy not cleantech, it is a key environmental theme in my view and will grow in importance as the effects of climate change are felt across the globe. On Monday, David McClellan at Solve Climate argued that the costs of nuclear energy were rising out of reach. A good attempt at coming up with a comparison of wind and nuclear prices, and interesting in the context of my earlier article on power plant costs. ...

Jeff Siegel and Tom Konrad April 16: Canadian Solar (NASDAQ:CSIQ) Soars in Pre-Market JS: Capstone Turbine (NASDAQ:CPST) announced this morning that it landed a deal with a Michigan hospital to supply a dual-mode C1000 Power Package. The unit will provide both prime and backup power to save energy and increase reliability at the facility. Not sure how much this will do for the stock today, but I still maintain that Capstone Turbine below $1.00 is a gift. Particularly for those who can exercise a little patience. Consolidation looks to continue in the...

Jeff Siegel March 26: Tesla Motors (NASDAQ:TSLA) Upgraded to $49 A123 Systems (NASDAQ:AONE) announced today that it will have to replace battery modules and packs that may contain defective cells. The replacement is likely to cost about $55 million. The stock is down about 4 percent in pre-market. If the broader market stays positive today, the damage could be contained. I expect to see a number of follow-up articles blasting A123 because, well, the company works in the electric vehicle space and it's received government support. The combination of the two makes it a popular target....

On Tuesday, Eize de Vries at Renewable Energy World described the challenges of growth for us. A very detailed article on where the main tension points are in the global wind value chain. On Tuesday, Tate Dwinnell at Self Investors told us that wind ETFs were coming. At last North American can play wind directly. On Wednesday, Energy Tech Stocks informed us that a new FERC forecast indicates U.S. demand response firms should do well this summer. An interesting piece of insight from FERC, and noteworthy that demand response is increasingly seen as an effective peak...

On Sunday, Sebastian Blanco at AutoBlog Green informed us that European biodiesel producers were intent on stopping the "US biofuel invasion". I have long argued that the drive to ramp up biofuel production in the US was more about placating the farming lobby than it was about global warming or weaning America off foreign oil. It follows, then, that just like agriculture, generous biofuel subsidies are going to lead to frictions in the international trading system. The same is true, by the way, for Europe. To be continued... On Monday, Eli Hoffman at Seeking Alpha reported that...

On Tuesday, Mark Gongloff at the WSJ's Energy Roundup informed us that Alcoa couldn't wait to go geothermal. This is indeed an interesting development. Aluminum smelters are some of the most electricity-intensive industrial processes around, and, in a context of rising energy prices, there are very real incentives to explore alternatives for firms in this industry. On Wednesday, Kevin Bullis at Technology Review looked into making cheaper solar cells for us. Could Heliovolt be the next First Solar (NASDAQ:FSLR)? On Wednesday, Tyler Hamilton at Clean Break warned us of the inherent limitations of so-called "clean coal". The...

On Sunday, Edgar A. Gunther at Gunther Portfolio provided some silicon updates from Intesolar North America 2008. Solar investors never get enough silicon updates, so here's another one! On Monday, Stacy Feldman at Solve Climate told us that China was now making increasingly more wind power parts. Actually, she is reporting on an article that was written last week and that I missed because I took a break from the Week In Cleantech last weekend. With regards to Chinese companies active in wind, we already list some in our Cleantech Stocks section, and will be sure to keep...

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...

Jeff Siegel and Tom Konrad April 30: Orion Energy Systems (OESX) Triples Stock Buyback TK: Sometimes microcap stocks fall just because no one is paying attention.  The directors of Orion Energy Systems (AMEX:OESX) clearly think their company is one such. Orion is an energy management company with a focus on high efficiency lighting systems and alternative energy system integration in commercial buildings.  The company is profitable, with a trailing Price/Earnings ratio of 18, a Price/Sales ratio of 0.5, and sold at less than half of book value ($4.05) when the market closed on Friday...

In Solar, Eric Savitz at Barron's Tech Trader Daily wondered whether stock loan deals would be repaid. It's always important for shareholders to pay attention to which financing structures companies chose. In this case, if you understood this well, it could have a been good lateral short play on Lehman's problems. However, if you were long ESLR and had not paid this financing too much attention, you were probably not pleasantly surprised. Good CleanTech let us know about a new report claiming that thin-film will make up a whooping 40% of the solar PV market by 2012....

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 Tuesday, Tyler Hamilton at Clean Break told us to stop obsessing about corn. On Tuesday, Anders Bylund at The Motley Fool discussed 3 stocks that missed the mark. Stock discussed: Evergreen Solar . On Thursday, Jennifer Openshaw at TheStreet.com informed us that it might be...

On Sunday, Jim Fraser at Energy Blog reported a claim by Sungri that it can produce 5-7 cents per kWh CSP. This is quite the claim, and if true, would represent nothing short of big bang for the solar space. Nevertheless, I remain wholly unconvinced. On Sunday, John Laumer at TreeHugger told us that Waste Management was going to fuel Altamont (CA) area trucks with landfill-harvested liquid natural gas. Landfill gas (LFG) can be used for both power generation and for liquid fuel production. I did a bit of research into this a few months ago and, with...

What were Cleantech bloggers blogging about in 2007?  We don't have to wonder... instead, I asked Brian, AltEnergyStocks.com's web guru, to do a special run of our Cleantech News Algorithm. The Cleantech News Algorithm automatically by scans nearly 300 cleantech blogs and news sources, selected for their cleantech content. It takes three main criteria into account: 1) what other bloggers are saying about a news item, 2) how users across the Internet prefer a news item (which we call 'social popularity'), and when the item was written.  Normally it gives high priority to fresh news items, but this...

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 Monday, Tim Hussar at Finding Cents in the Market broke into biodiesel for us. Stocks discussed are: Nova Biosource Fuels and NewGen Technologies . Thanks to SeekingAlpha for this one. On Tuesday, Bret Arends at TheStreet.com told us how Cheney's fund manager wasn't too happy...