In conventional photoelectrochemical cells, sunlight is converted into electricity and an electrolyte is used to move electrons which creates a current. The problem is that these cells have chromophores, which are light-absorbing dyes that degrade after being exposed to sunlight. But with self-repairing solar cells, this would no longer be an issue. To create these new solar cells, the Purdue research team utilized two crucial elements needed to make this technology imitate nature, which was molecular recognition and thermodynamic metastability. This allows the system to be dissolved and reassembled on a regular basis, replacing photo-damaged dyes continuously.

There’s a lot of debate over to what extent the demand for cleantech products and oil prices are linked, but in general sky high oil prices seem to help boost demand for goods like electric cars, and biofuels, as well as stimulate cleantech investing. At least that’s how it looked back in 2008, when oil traded around $100 a barrel for awhile, and hit a high of $145.

Theo báo cáo của Phòng Năng lượng tái tạo Argentina (CADER), nước này đã vượt qua Mỹ để trở thành nhà sản xuất dầu diezel sinh học lớn thứ 4 trên thế giới, với sản lượng gần 2 triệu tấn/năm. CADER cho biết năm 2010, Argentina đã sản xuất 1,9 triệu tấn diezel sinh học, tăng 51% so với năm 2009 và thu về 1,9 tỷ USD. Báo cáo cũng chỉ ra rằng trong giai đoạn 2006-2010, sản xuất diezel sinh học của Argentina đã tăng tới 250%.

Scientists with USDA's Agricultural Research Service (ARS) have found that barley grain can be used to produce ethanol, and the leftover byproducts-barley straw, hulls , and dried distillers grains (DDGS)-can be used to produce an energy-rich oil called bio-oil. The bio-oil could then be used either for transportation fuels or for producing heat and power needed for the grain-to-ethanol conversion. ARS is USDA's principal intramural scientific research agency, and these results support the USDA priority of developing new sources of bioenergy.

Wind power rose by 18.5 per cent in 2010 and now meets 16 per cent of demand. Luis Atienza, managing director of Spain's electricity grid, predicted that "within three years wind power will overtake nuclear as an electricity source". At its peak, on November 9, wind power met 43 per cent of demand.

Energy will be at the top of the agenda at the first EU summit chaired by Hungary on 4 February. Officials will push for negotiation between leaders to focus on controversial EU energy market reform and measures to prevent Europe losing its lead as a clean energy hub to China and other emerging economies.

Siemens Healthcare is developing a solar power solution, which would support the medical imaging equipments including MRI, CT, ultrasound scanning and X-ray systems. The company said this would largely help the centres located at the rural parts of the country, where power shortage is high.

Conventional fuel sucks an enormous amount of resources out of disaster relief efforts, because it has to be purchased and then transported to its point of use, often under extreme conditions. It also creates new hazards at the relief site in terms of storage, leaks and spillage, along with emissions and noise from the generators. Solar and other renewable energy sources, such as portable wind power, practically eliminate these added costs and complications.

Abengoa Solar Inc. expects to start construction in mid-2011 on a plant in Arizona that will store sun-generated heat to provide six extra hours a day of electric-generating capacity. The heat creates steam that is used to turn power turbines. Abengoa's $2 billion Solana plant is expected to be the first major stored-heat plant in the U.S. when it enters service in 2013. Some already exist in Spain and a few more are on the drawing board for Nevada and California.

Ontario residents will see a 10 per cent rebate on electricity costs for the next five years, starting January 2011, the province announced on Nov. 18. The Ontario Clean Energy Benefit is intended to help Ontarians cope with rising hydro costs, Sudbury MPP Rick Bartolucci stated in a press release. "This is more than the provincial portion of the HST and will help the average family save more than $100 per year in hydro costs," he added.

The sun power industry in Germany, the world's leader in solar energy, is facing a tough year amid the threat of growing competition from Asia and falling prices. German solar-power companies rebounded last year from a dramatic slump in profit during 2009 as a boom in the sector took shape last year.

Tại buổi họp báo tổ chức ngày 10/1, tại Thành phố Hồ Chí Minh, ông Gerhard Schutz cũng cho biết đây là giải pháp cho phép chuyển nhiệt lượng của khí thải thành điện năng sạch, tái sử dụng nhiệt thải làm năng lượng vận hành. Tổng số vốn đầu tư cho dự án là 28 triệu USD, trong đó 10 triệu USD được sử dụng cho giai đoạn bảo trì.

According to the company’s statements, the tall building will have a wind tunnel in the middle . The air will be converted to electricity as soon as it gets down to a series of turbines. The Betz limit value theory says that the maximum harvestable energy from the wind is 59.3% but the company claims that the system is not constrained by it.

Biofuel technology developer New Generation Biofuels Holdings, Inc., has secured a contract with the City of Baltimore to evaluate its biofuel for use in institutional boilers over a one year period. The maximum volume for the program is capped at 440,000 gallons, said the company based in Columbia, Maryland.

New Generation Biofuels Holdings, Inc. – nhà phát triển công nghệ nhiên liệu sinh học vừa khẳng định một lần nữa về hợp đồng đánh giá sử dụng nhiên liệu sinh học trong hệ thống lò hơi với thành phố Baltimore trong thời gian 1 năm. Theo công ty này đặt ở Columbia, Maryland, khối lượng lớn nhất của chương trình lần này có thể đạt 440 nghìn gallon.

Hội chợ quốc tế hàng điện tử tiêu dùng tại Los Angeles, Mỹ, từ 6 đến 9-1 cho trưng bày thiết bị 2 trong 1 mang tên Eton (ảnh), trong đó vừa là radio vừa là sạc điện thoại di động qua ngõ USB.

The Indian government recently provided subsidies worth $10 million for projects aimed at promoting the use of solar energy in rural areas. The subsidies went to projects which distributed solar lanterns and installed solar home-lighting systems in villages across the country.

Bulgaria will export an estimated 7500GWh of electricity in 2010, more than double its 2009 figure of 3700GWh, announced the National Electric Company (NEK). This represents 21.6% of total power generated in the country. Exports have increased significantly as domestic consumption was reduced by the recession. “We reached an all-time exports record this year,” Parvanov said. “Mainly because we improved the management of the tenders and our product.”

According to a recently released report, Scotland is on track to meet its ambitious renewable energy goal of generating 80 percent of its electricity from renewable energy sources by 2020. In the report, Energy Trends, it was revealed that 27 percent of the electricity in 2009 was generated using renewable energy sources.

Some 500 of 900 German power firms will increase prices as of Jan. 1, consumer portal Verivox said, detailing recent announcements in the retail energy market for the 40 million households it monitors. The average increase will be 7 percent and a typical household, consuming 4,000 kilowatt hours a year, will have to pay 66 euros ($87) more for annual supply, said the portal, which monitors prices and encourages switching.