Friday, February 6, 2009

World's Leading Photovoltaic Companies

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PV Solar Panel
Sharp Solar is the world's largest photovoltaic module and cell manufacturer, with an overall capacity of 600 megawatts. It manufactures in Japan, in the UK - near Wrexham, and recently opened a large manufacturing facility in Memphis. Sharp Solar produces both single and multi-crystalline solar cells which are used for many applications. Sharp began its development of solar cells in 1959, with mass production first beginning in 1963. In 1980, it was one of the first companies to introduce calculators powered by solar cells.

Established in 1999, Q-Cells is the world's second largest cell manufacturer, based in Thalheim, Germany (Q-Cells AG was the single largest producer of solar cells in 2007 according to industry data). Its core business is the development, production and marketing of high-quality (mono- and multi-) crystalline silicon photovoltaic cells.

Based in Wuxi, China, Suntech Power is the world's third largest producer of photovoltaics in 2007. Suntech Power manufactures solar cells and modules and it is a global leader in solar energy as measured by both its production output and the capacity of its solar cells and modules.

Headquartered in Kyoto, Japan, the Kyocera Corporation is a pioneer in the solar energy market and began to develop solar cells in 1975. Today Kyocera is one of the world’s leading manufacturers of solar cells and modules, with a highly controlled mastery of all the production steps from wafer and cell fabrication to module assembly.

The Phoenix, Ariz.-based First Solar is a leader in the development and manufacture of high quality thin film solar modules. They manufacture photovoltaic solar modules developing advanced, thin film semiconductor deposition and high volume manufacturing processes, based on Cadmium Telluride (CdTe).

Motech is the largest manufacturer of photovoltaic cells in Taiwan. For over 25 years, Motech Industries, Inc. (Motech) has been creating high quality products, from testing and measuring instruments to solar cells. Motech has now become one of the top 10 producers of solar cells and the 6th largest crystalline solar cell manufacturer in the world (2007).

SolarWorld is headquartered in Bonn, Germany, and purchased Shell Solar's crystalline silicon activities in 2006. SolarWorld is one of the three largest solar energy groups in the world. The SolarWorld Group of companies is involved in every step of the solar value chain from raw silicon to turn-key solar power systems and is active in growing solar markets around the world.

Japanese company Sanyo Electric has been manufacturing solar cells and panels since 1970s. In 1992, Sanyo Electric started the practical application of installing the first PV generation systems on individual houses in Japan. SANYO HIT (Heterojunction with Intrinsic Thin layer) solar panels are a leader in cell and module efficiency with models up to 16.2 Watts per sq. foot (17.4% module efficiency). On July 29, 2008 the company announced, that it achieved a cell conversion efficiency of 22.3% at the research level.

China-based Yingli Green Energy is one of the world's leading vertically integrated PV product manufacturers. Yingli Green Energy sells PV modules under its own brand name, Yingli Solar, to PV distributors located in various markets around the world, including Germany, Spain, China and the United States.

SunPower Corporation is a Silicon Valley based solar company, and is one of the largest in existence.The company designs and manufactures high-efficiency silicon solar cells and solar panels based on an all-back-contact "All-Black" design. They install them through their subsidiary PowerLight. Their Nellis Solar Power Plant is currently the largest PV installation in North America

Schott Solar Germany is among the world's leading fully integrated manufacturers of PV wafers, cells and modules. The company has more than 40 years of experience and offers reliable PV solar electricity modules for almost any kind of application. Schott Solar is also one of the leading companies in thin film technologies.

Renewable Energy Corporation (REC) is based in Norway, and was established in 1996. Over a relatively short period, REC has become the world's largest producer of poly silicon and wafers for PV applications. The company has seven production plants in three different countries and customers all over the world.

Mitsubishi Electric is one of the world’s largest manufacturers and providers of solar power technology, including PV cells, modules and inverters. The company’s eco-friendly photovoltaic systems are used throughout the world to bring clean, reliable energy to residences, business, power generation plants, schools, and factories.

BP has been involved in solar power since 1973 and its subsidiary, BP Solar, is now a major worldwide manufacturer and installer of PV solar cells, with production facilities in the United States, Spain, India and Australia. Headquarters for BP Solar are located in Frederick - a city in west-central Maryland, United States.

Isofoton is a Spanish company, the biggest solar panel manufacturer in Europe. The company designs and manufactures high-efficiency mono crystalline silicon cells (also the most expensive), and it is currently the largest mono crystalline producer worldwide.

Nanosolar
was started in 2002 and is headquartered in Palo Alto, California. Nanosolar is a maker of thin-film solar panels and is a global leader in solar power innovation. Nanosolar Powersheet, a very thin film solar panel has won the Popular Science Innovation of the Year award. The company manufactures Powersheet by printing a solar absorbing “ink” onto a thin rolled metal sheet in a low-cost, fast, continuous process. The company has manufacturing operations in Silicon Valley, California, and the Berlin capital region, Germany.



Tuesday, January 13, 2009

Solar PV Power in Cold Climate

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Many people interested in generating solar PV power for their household power needs are also interested to know how PV solar panels operate at colder temperatures or in cloudy conditions. Actually, PV solar panels work better at colder temperatures - some of the best efficiencies ever recorded were at the South Pole! This is because the solar cells in the panels are electronic devices that generate electricity depending on the amount of sunlight they receive, not heat. In cold climates, PV panels will generate less energy in the winter than in the summer, but this is due to the shorter days and less sunlight, not the colder temperatures.

Photo credit: altenergy.blog-city.com
PV solar panels continue to work even in cloudy conditions, although they do produce less electricity. On days with cloud cover or windblown snow, the PV panels' output power is reduced significantly. With sun angles approaching the highest limits and visibility being high, the PV panels reach their rated output power.


Many countries in the northwestern region of Europe, including Denmark and the rest of Scandinavia, make extensive use of solar power. Germany is the world's leading installer of photovoltaic (PV) solar cells, although its climate is mostly temperate. Japan is also a major installer of solar PV panels, and their climate is temperate.

An example of integrating PV technology in the daily life are solar powered parking meters which are fairly common in Germany and the Netherlands. The electricity which runs them is supplied by small solar panels on top of the parking meters, right there in the streets.

Canada is another cold-weather country where PV technology is quickly gaining ground. PV cells have been used in Canada over the last 20 years or more for many applications. Photovoltaic modules were used as standalone units, mainly as off-grid distributed electricity generation to power remote homes, telecommunications equipment, oil and pipeline monitoring stations and navigational applications. Over the last few years PV technology has also started to be introduced into urban areas, incorporated into the roofs and facades of homes, offices and factories. And the largest solar PV energy park in North America will be located on approximately 300 acres of land in the Township of Stone Mills, Lennox & Addington County, Ontario. The 19-megawatt project, known as First Light, is being built by SkyPower Corp and SunEdison Canada. The construction is anticipated to be completed by the end of 2009 and local communities will benefit from clean renewable energy sufficient to power more than 2,000 homes annually.


Thursday, January 8, 2009

Solar-Powered Ski Jacket by Ermenegildo Zegna

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It is winter time here - time for chilling temperatures, snow, but also white beauty, skiing and much fun. So, news like this could be interesting for all environmentally-conscious and geeky skiers. The first "ecological" luxury solar-powered ski jacket designed by Italian designer Ermenegildo Zegna is able to recharge your cell phone, iPod and other gadgets on the go. Italian clothing manufacturer Ermenegildo Zegna, has joined hands with a German company called Interactive Wear, a firm that specializes in "smart" textile technology, to develop the world’s first ski jacket that gets its juice from solar energy.

The jacket uses Microtene material that makes it water resistant and has integrated discreet solar cells placed in neoprene collar, which converts sunlight into renewable power to charge your electronic gadgets while you're outdoors. An hour of direct sunlight will charge up a phone for about 35 minutes of talk time. The battery requires four to five hours for a full charge. Good thing is also that you can take off the collar anytime, so you can use it to charge your gadgets even when you are back at home.

Although this jacket doesn't seem to be very innovative, since it looks like they’ve just stitched a couple of solar cells into the jacket’s collar, I think that all trials in the field of "intelligent" clothing deserve our attention and should be admired. And it is one more opportunity to promote your green ideas to the world, well... if you can afford it - Zegna Sport Solar Ski Jacket retails for about $1,350 at all Ermenegildo Zegna boutiques.

www.zegna.com


Monday, January 5, 2009

Beginning the New Year with a Blog Award

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Happy, Prosperous and Green New 2009 Year to all my readers! I wish you also many sunny days throughout the year ;)

It is good to begin the New Year with something encouraging and inspiring, so I decided to start my first post for this year with another blog award which I received from Barbara at GoalForTheGreen some time ago (goalforthegreen.com/2008/12/wowanother-award) but just didn't find the right moment to post about it so far. Again special thanks Barbara!

These are the rules for “I Love Your Blog" award:

1). Add the logo of the award to your blog.
2). Link back to the person who gave you the award.
3). Nominate at least 7 other blogs.
4). Add those links to your blog.
5). Leave a message for your nominees on their blogs.

And these are the 7 blogs I’m passing this award to:

Green Not Mean
Save the Earth
Endangered Spaces
Simply Abundant Living
Birding in the Falkland Islands
Strawbale House
Blog Appetite

Happy New Year!

Saturday, December 20, 2008

Solar Christmas Lights for a Greener Christmas

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In accordance with the Holiday Spirit this post is all about having an environmentally friendly and green Christmas just by purchasing a set of outdoor solar Christmas lights to illuminate your home.
Solar Christmas Lights
Solar Christmas lights can help you save electricity and money, and they are convenient to use because they don’t have to be plugged in and there are no wires to worry about. Solar Christmas lights use LED or Light Emitting Diode technology instead of filament bulbs, which not only saves power and creates vivid light, but also stays cooler than typical bulbs and thus eliminate danger of fire.

When buying Solar Xmas lights you should be aware of charging times and lighting times. On average the outdoor solar lights will illuminate for about 7-8 hours while a few brands tout 12 to 15 hours of illumination time. Keep in mind that illumination time is affected by how fully the solar panel is recharged during the day. Also, an exceptionally cloudy, dark day will reduce the nightly illumination time.

Solar Christmas lights are becoming very popular, which has led to increased availability and design choices. They are available in many different shapes such as stars, bells, hearts, snowmen, snowflakes, Santa designs, and more.

If you want to impress your friends and neighbors you may look for some really impressive solar Christmas lights - those that come with a remote control and with options that allow you to create your own light show. Some solar Christmas lights even let you change the level of light output or change the color of the lights with the remote control.

So, buy a set of cool energy efficient solar Christmas lights and enjoy a Greener Christmas with your family and friends!