Solar panels are usually mounted in series, to sum up their voltages, and the resulting power is sent to a large inverter, which transforms the DC voltage into AC. One big issue with this scheme is that if shade falls on one panel, or it gets dirty, the inverter lowers the current of all the other panels, and causing power losses through inefficiency.

Với sản phẩm mới, sử dụng năng lượng hiệu quả của mình, Whisper Tech - doanh nghiệp sản xuất thiết bị đun nước tiết kiệm năng lượng, thuộc tập đoàn Meridian (New Zealand) đang tham vọng đánh bại các đối thủ tại thị trường ấm đun nước đầy hấp dẫn tại Anh. Whisper Tech nói rằng IPO (việc phát hành cổ phiếu lần đầu) tại Euro có thể xảy ra khi doanh nghiệp này đang dốc lực mạnh cho hoạt động sản xuất.

A New Zealand firm is hoping to beat rivals to Britain's lucrative boiler replacement market with its energy-efficient product and says an IPO (initial public offering) in Europe could be on the cards as it ramps up production. Whisper Tech, controlled by New Zealand state power group Meridian, expects to be profitable within a year and is examining its funding options over the next 12-18 months as it moves into mass production.

The Coca-Cola company has been introducing more electric vehicles and other low-emissions trucks into its massive fleet, and now researchers at the Hong Kong Polytechnic University are developing yet another alternative energy option. The team has been working on a solar powered air conditioning system that would significantly reduce or eliminate beverage delivery truck emissions related to cooling.

The Abu Dhabi Distribution Company (ADDC), which supplies electricity to the city and surrounding areas, will have installed digital electricity meters in all buildings by the end of this year, its deputy managing director Abdulrahman al Dhaheri said yesterday. The new meters not only calculate power usage, but also allow consumers to sell their own solar-generated electricity back to the grid.

The United States is on the verge of a solar boom that could provide 4.3 percent of the nation's electricity by 2020, according to a new report from Bloomberg New Energy Finance. There's just a 12-figure catch: Investors need to put $100 billion into the solar industry to keep the generation of solar electricity growing by 42 percent a year for the next decade to expand capacity from the current 1.4 gigawatts to 44 gigawatts.

This is the third day in a row that we are presenting the most efficient lighting systems invented recently. Now, it’s time for another invention from GE, who made a 1,500-lumen LED light bulb and cooled it through a technology used in aviation.

Floating wind turbines are a little more complicated and require higher initial costs. But a new study, Project Deepwater, by the Energy Technologies Institute (ETI) in the UK has found that due to their greater ability to access stronger and more consistent winds deeper out at sea, they are more economically efficient in the long term.

According to Mazda Motor Corp, the new Mazda2 subcompact will have a fuel economy of 30 km/litre (70 mpg) and as the company said, it will become the world’s most fuel-efficient vehicle. Mazda2 is scheduled to be launched in Japan in the first half of 2011, being the first car fitted with SKYACTIV, a technology produced only by Mazda based on next-generation gasoline and diesel engines.

We’ve been talking a while ago about Michael Strano and his thin carbon nanotubes that can transform fuel poured onto them into electricity. A chemical reaction is set up by heating the nanotubes, triggering the transformation at a speed of 10 meters per second.

Các kết quả từ chương trình kiểm toán năng lượng của EECA cho thấy trung bình các công ty có thể giảm 20% chi phí sử dụng năng lượng. Điển hình là cứ mỗi đô la đầu tư vào việc kiểm toán năng lượng sẽ tiết kiệm được 7,50 đô la chi phí năng lượng.

Leave it to larger-than-life Texas to lead the U.S. into a new energy future. While the state is most closely associated with oil, it has also been an early pioneer of wind power, and is beginning to embrace solar energy along with armloads of new green jobs. Now the San Antonio Water System has set the national bar high in the sewage-to-biogas field, by becoming the first water district to hook a biogas facility up to a commercial gas pipeline.

First announced in 2006, the facility represents an investment commitment of $1 billion and opens up extensive new opportunities for economic development in Vietnam. The facility is the largest assembly and test factory in Intel’s global manufacturing network, with a total area of 46,000 square meters, equal to the size of 5 ½ football fields. Production commenced in the middle of this year, starting with production of chipsets for laptops and mobile devices for Intel customers worldwide.

With the second largest tidal range in the world, about 50 feet, the Severn estuary has been eyed for years as a potential energy source, particularly as the appetite for sustainable energy sources has been growing over the last few years. The U.K. has pledged to have 40 percent of its electricity generated from renewable sources by 2020 to meet European Union requirements.

In a first-of-its-kind melding of solar technology with high speed rail facilities, the clean energy company Enfinity will install 16,000 solar panels on the two-mile long roof of a rail tunnel in Belgium. If the name Enfinity doesn’t ring a bell it soon will. The Belgium-based company has trained its sights on the U.S. energy market and is poised to step up commercial and utility scale solar installations here, from coast to coast. New green jobs, much?

Arizona is one of the four most improved states in terms of energy efficiency, according to a study released today by the American Council for an Energy – Efficient Economy. The state ranked 18th, up 11 spots from 2009, tying Utah for the most movement. Close behind were New Mexico and Alaska, which both leaped eight spots.

Municipal governments looking to tap into New Jersey’s cost-saving energy audit or “Direct Install” programs can get the assistance they need under a shared services program unveiled by the Burlington County Freeholders in cooperation with the county Bridge Commission.

South Yorkshire is the greenest part of Yorkshire, according to The Energy Saving Trust. The Trust says that since April people in South Yorkshire have installed more renewable energy systems than the rest of the region put together. There are now a total of 426 installations in the county - most of them in Sheffield, followed by Rotherham, Barnsley, and then Doncaster. That compares with 199 installations in West Yorkshire, 78 in North Yorkshire and 40 in the Humber.

In these difficult economic times for Island contractors and associated trades, builders have adapted. From grand, expensive, multi-year construction jobs, some have changed pace to accept small-scale renovations or additions. Some who have been the lead builders on big projects have taken work as subcontractors. Some have turned to specialization, including specialization in energy conservation and renewable energy techniques.

On the afternoon of October 14th, People's Committee of Hanoi discussed with the Chairman of the New Energy and Industrial Technology Development Organization (NEDO) of Japan and theMinistry of Natural Resources and Environment about preparing for the implementation of the project "Building a system to treat waste of power industry" in an area of 1 ha of Nam Son Waste Disposal Complex, Soc Son district.