California start-up Bridgelux has expanded its line of "lights on a chip" which it sells to lamp and bulb companies, making LED more viable based on energy savings.

Aspen Aerogels is selling aerogels--a high-tech insulating material used in oil and gas pipelines and in aerospace--to retrofit older homes to be more energy efficient.

AMERICA strengthened its position as the world leader in wind power in 2009. Having overhauled Germany in 2008, installed wind capacity in the United States grew by 9.9 gigawatts (GW) to reach 35.2GW by the end of last year, according to a new report from the Global Wind Energy Council. But America's reign could be short-lived as China continues its enormous rate of increase. For the fifth year running China nearly doubled its capacity, adding 13GW of installed power and overtaking Spain in the process. Despite the economic downturn, global cumulative capacity grew by 31%, the highest annual increase for seven years.

Obama To Discuss Energy Policy With Bipartisan Governors Group At The White House

The Cahit Sıtkı Tarancı House in Diyarbakır, Turkey, is an example of a traditional courtyard-style home. Photo via Diyarbakır Association. Recycled denim insulation and programmable thermostats are all well and good (really good), but people 4,500 years ago managed to keep their homes appropriately warm and cool without h...Read the full story on TreeHugger

I just can't stop watching this video. I first heard of Blu Homes when they purchased the intellectual assets of Michelle Kaufmann back at the end of September. There was not a lot of information about them at the time, and having been in the modular home business and I had a lot o...

"The fissure was induced in order present an image which shows the characteristics of the coating. The image shows the SiO2 coating on a filament of a microfibre." Image: Nanopool If it Works and is Safe, It Could Change the World A special coating technically known as "SiO2 ultra-thin layering", but more memorably called "spray-on liquid glass", has been invented in Turkey at the Saarbrücken Institute for New Materials (the patent is owned by Nanopool). It is non-toxic promises to "protect virtually any surface against almost any damage from hazards such as water, UV radiation, dirt, hea...

Photo via University of Manitoba It looks like Obama is attempting to hammer down his clean energy strategies--while the big news last year was the flood of investment in cleantech unleashing in the stimulus bill, this year appears to be about making tougher, more concise calls. For example, clean energy and efficiency initiatives received careful markups, nuclear power funding was expanded, plans fo...