Affordable Solar & Wind

Believe it or not the story of solar energy dates back more than 2,000 years of Greek and Roman age who were the first civilization is in terms of their houses to get the best use of sunlight, both light and heat. The famous Greek philosopher Socrates in the first recorded stories written by solar energy on the power of the sun when he commented that all buildings should be oriented South then they got maximum sunlight in winter.

The Roman aristocracy has taken a step further when they made the first historic use the glass window panes on the south side of the villa of the immense cost meant that only the very wealthy class could. Two civilizations Ancient times the pain of what might be considered a modern situation of energy shortage, which in this case has not enough wood to go around, wood is the main source of heat.

After the fall of the Roman Empire solar energy has been forgotten for over a thousand years.

Until the 1800s it was generally accepted that the supply of fossil fuels worlds is so vast that it would never be exhausted, especially when new resources are constantly being discovered. In 1861, Auguste Mouchet built a steam engine was completely warmed by the sun, but the machine proved expensive to maintain and Coal prices were down when he could not get support for more development. He went to a needs assessment booming industry and commented on the demands of this industry for coal reserves would soon deplete and then what happens?

He continued to be an interest in solar energy and all-electric from there, a fascinating fact is that even if we think that cell vehicles as a technology until about 1905 there was a higher proportion of electric vehicles on the road to modern times. Their development was arrested because the battery technology has been unable to overcome the practical weight of the batteries themselves. The world championship of 1905 had more speed electric cars found that gasoline-powered vehicles, it was won by a motor car gasoline with a maximum speed of 60 miles per hour, and the lower cost of gas has prevented commercial research until the oil crisis of 1973 refocused attention on solar energy and other alternative energy, it brings almost the history of energy solar day.

serious interest in solar energy, into the 50s, was limited to scientific research, Although the 1921 Nobel Prize for physics was awarded to Albert Einstein for his work on the principle of photoelectric effect on the production of electricity. However, he remained almost entirely scientific research until 1953, when Bell Laboratories has created a silicon-based Solar Cells who was able to create electricity, but after three years of development, there are still costs to generate sixty times as much one watt of electricity using solar energy instead of fossil fuels. Thus, research has been cut right back until the oil crisis of 1973.

The governments of each country suddenly had to wake up in a world where Oil prices have doubled during the night to a huge investment has been made in finding more efficient solar cells and twenty years later in the 1990s, we had effective residential photovoltaic cells, but until then, the oil crisis was over for awhile and gas was again cheap and plentiful, but for how long?

Over the last 10 years, solar cells have increased efficiency and fallen in price to a point where home solar panels are a viable option for DIY solar energy at home, ready to start writing your own history of solar energy.

Chris R Hartley is an advocate for Green Energy Solutions and affiliate for green products. www.homebuildgreenenergy.com is my site and contains lots of information and ideas for your Green Energy Projects.

Take a look at my review. homemade solar panels [http://www.homebuildgreenenergy.com/homemade-solar-panel.php].

Simulated wake evolution of the NREL 5MW wind turbine rotor

Optimization Studies on the Ducted Wind Turbine. $115.71 The concept of the Ducted Wind Turbine (DWT) has received significant research interest over the last fifty years. Several attempts to commercialize the DWT have been made in the past, but a commercial version does not exist at present. One of the primary concerns has been the size of the duct of the DWT and the economical and structural challenges relative to its design. It has been observed, both from existing as well as new experimental results at UNH, that significant reductions in the size of the duct can be achieved by better modeling the three dimensional flow in the duct. Specifically, the inherent swirling nature of the turbine wake flow is found to have significant influence on delaying the boundary layer separation in the diffuser, and thereby improving the diffuser performance considerably, concurring with Prasad and Ostrach (1971); McDonald et al. (1971); Senoo et al. (1978); Okhio et al. (1983). This improvement in diffuser performance facilitates a smaller diffuser, and hence a smaller duct. The present work addresses a DWT design optimization study in two parts: (1) a preliminary theoretical analysis showing a potential to reduce the length of the diffuser by up to 40, and (2) experiments that were carried out on three DWT scale models that were prototyped at UNH to study the influence of swirl on the diffuser pressure recovery. Additionally, results from experiments have also shown scope of power augmentation of more than 40 through the use of a duct, compared to a samerotordiameter unducted turbine. Author: Guntur, Srinivas Binding Type: Paperback Number of Pages: 76 Publication Date: 2011/09/30 Language: English Dimensions: 9.69 x 7.44 x 0.16 inches

Wind Turbine in the Field, Germany $129.99 Panoramic Images Wind Turbine in the Field, Germany - Wall Decal

Wind Turbine at Sunset, Computer Generation $24.99 Roger Sutcliffe Wind Turbine at Sunset, Computer Generation - Photographic Print

Wind Turbine Silhouetted Against the Sun $39.99 Eightfish Wind Turbine Silhouetted Against the Sun - Photographic Print

A Turbine Spins in the Wind Generating Electricity $39.99 Taylor S. Kennedy A Turbine Spins in the Wind Generating Electricity - Photographic Print

Wind Turbine after an Ice Storm $39.99 Skip Brown Wind Turbine after an Ice Storm - Photographic Print

Wind Turbine Generators, Tehachapi, CA $29.99 Mark Gibson Wind Turbine Generators, Tehachapi, CA - Photographic Print

Darrieus Wind Turbine $76.47 High Quality Content by WIKIPEDIA articles The Darrieus wind turbine is a type of vertical axis wind turbine used to generate electricity from the energy carried in the wind. The turbine consists of a number of aerofoils usuallybut not always vertically mounted on a rotating shaft or framework. This design of wind turbine was patented by Georges Jean Marie Darrieus, a French aeronautical engineer in 1931. The Darrieus type is theoretically just as efficient as the propeller type if wind speed is constant, but in practice this efficiency is rarely realised due to the physical stresses and limitations imposed by a practical design and wind speed variation. There are also major difficulties in protecting the Darrieus turbine from extreme wind conditions and in making it selfstarting Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 104 Publication Date: 2010/07/01 Language: English Dimensions: 5.98 x 9.01 x 0.24 inches

OWI OWI630 EcoBiker Wind Turbine Educational Model Kit $28.93 The EcoBiker is your child s own personal wind turbine.Clip it to a bike s handlebars or anywhere with a breeze and watch as the fan powers a LED light. The stronger the wind the faster the EcoBiker pedals and the brighter the LED shines. Ecofriendliness sustainability and energy consciousness is the name of the game with this wind powered generator kit. Similar kits are purely for experimental purposes and have no practical application (or fun). Most require a strong wind to even start the motor. After extensive experimentation OWI RobotiKits has developed the most efficiently shaped fan compact enough to take anywhere just waiting to create memorable educational moments.

Wind Turbine Generators, Altamonti Pass, Califorrnia, USA $19.99 Wind Turbine Generators, Altamonti Pass, Califorrnia, USA - Photographic Print

View of a Wind Turbine, Baden-Wurttemberg, Germany $39.99 Panoramic Images View of a Wind Turbine, Baden-Wurttemberg, Germany - Photographic Print

Wind Turbine in a Field, Baden-Wurttemberg, Germany $39.99 Panoramic Images Wind Turbine in a Field, Baden-Wurttemberg, Germany - Photographic Print

Wind Turbine under a Sky with Billowing Clouds $39.99 Eightfish Wind Turbine under a Sky with Billowing Clouds - Photographic Print

Boeing Gas Turbine Model 502 $79.99 Boeing Gas Turbine Model 502 - Premium Photographic Print

Traditional Windmills with a Wind Turbine on a Landscape, American Wind Power Center, Lubbock $29.99 Traditional Windmills with a Wind Turbine on a Landscape, American Wind Power Center, Lubbock - Photographic Print

Wind Turbine in a Field, Judith Gap, Montana, USA $129.99 Panoramic Images Wind Turbine in a Field, Judith Gap, Montana, USA - Wall Decal

Wind Turbine, Black Forest, Baden-Wurttemberg, Germany $129.99 Panoramic Images Wind Turbine, Black Forest, Baden-Wurttemberg, Germany - Wall Decal

Wind Turbine in the Arid Landscape, Lamar, Colorado, USA $129.99 Panoramic Images Wind Turbine in the Arid Landscape, Lamar, Colorado, USA - Wall Decal

Residential Wind Turbine Towers Above a Ridge in the Mountains $39.99 White & Petteway Residential Wind Turbine Towers Above a Ridge in the Mountains - Photographic Print

Wind Turbine in the Barren Landscape, Brazos, Texas, USA $29.99 Panoramic Images Wind Turbine in the Barren Landscape, Brazos, Texas, USA - Photographic Print

Wind Turbine in a Field of Sunflowers, Baden-Wurttemberg, Germany $129.99 Panoramic Images Wind Turbine in a Field of Sunflowers, Baden-Wurttemberg, Germany - Wall Decal