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9

Solar Energy Collecting as an Alternative Energy Source

Posted by Aziz Devje Comments (5)

 

Photovoltaic cells—those black squares an array of which comprises a solar panel—are getting more efficient, and gradually less expensive, all the time, thanks to ever-better designs which all them to focus the gathered sunlight on a more and more concentrated point. The size of the cells is decreasing as their efficiency rises, meaning that each cell becomes cheaper to produce and at once more productive. As far as the aforementioned cost, the price of producing solar-generated energy per watt hour has come down to $4.00 at the time of this writing. Just 17 years ago, it was nearly double that cost.

Solar powered electricity generation is certainly good for the environment, as this alternative form of producing energy gives off absolutely zero emissions into the atmosphere and is merely utilizing one of the most naturally occurring of all things as its driver. Solar collection cells are becoming slowly but surely ever more practical for placing upon the rooftops of people’s homes, and they are not a difficult system to use for heating one’s home, creating hot water, or producing electricity. In the case of using the photovoltaic cells for hot water generation, the system works by having the water encased in the cells, where it is heated and then sent through your pipes.

Photovoltaic cells are becoming increasingly better at collecting sufficient radiation from the sun even on overcast or stormy days. One company in particular, Uni-Solar, has developed solar collection arrays for the home that work well on inclement days, by way of a technologically more advanced system that stores more energy at one time during sunlit days than previous or other arrays.

There is actually another solar power system available for use called the PV System. The PV System is connected to the nearest electrical grid; whenever there is an excess of solar energy being collected at a particular home, it is transferred to the grid for shared use and as a means of lowering the grid’s dependence on the hydroelectrically-driven electricity production. Being connected to the PV System can keep your costs down as compared to full-fledged solar energy, while at once reducing pollution and taking pressure off the grid system. Some areas are designing centralized solar collection arrays for small towns or suburban communities.

Some big-name corporations have made it clear that they are also getting into the act of using solar power (a further indication that solar generated energy is becoming an economically viable alternative energy source). Google is putting in a 1.6 megawatt solar power generation plant on the roof of its corporate headquarters, while Wal Mart wants to put in an enormous 100 megawatt system of its own.

Nations such as Japan, Germany, the United States, and Switzerland have been furthering the cause of solar energy production by providing government subsidies or by giving tax breaks to companies and individuals who agree to utilize solar power for generating their heat or electrical power. As technology advances and a greater storage of solar collection materials is made available, more and more private investors will see the value of investing in this “green” technology and further its implementation much more.

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Catégories : renewable energy
jan
9

Alternative Energy For The Home

Posted by Aziz Devje Comments (9)

The trend toward homes that are powered by alternative energy sources, ranging from wind turbines and solar collection cells to hydrogen fuel cells and biomass gases, is one that needs to continue into the 21st century and beyond. We have great need of becoming more energy independent, and not having to rely on the supplying of fossil fuels from unstable nations who are often hostile to us and our interests. But even beyond this factor, we as individuals need to get “off the grid” and also stop having to be so reliant on government-lobbying giant oil corporations who, while they are not really involved in any covert conspiracy, nevertheless have a stranglehold on people when it comes to heating their homes (and if not through oil, then heat usually supplied by grid-driven electricity, another stranglehold).

As Remi Wilkinson, Senior Analyst with Carbon Free, puts it, inevitably, the growth of distributed generation will lead to the restructuring of the retail electricity market and the generation, transmission and distribution infrastructure. The power providers may have to diversify their business to make up for revenues lost through household energy microgeneration. She is referring to the conclusions by a group of UK analysts, herself included among them, who call themselves Carbon Free. Carbon Free has been studying the ever-growing trend toward alternative energy-using homes in England and the West. This trend is being driven by ever-more government recommendation and sometimes backing of alternative energy research and development, the rising cost of oil and other fossil fuels, concern about environmental degradation, and desires to be energy independent. Carbon Free concludes that, assuming traditional energy prices remain at their current level or rise, microgeneration (meeting all of one’s home’s energy needs by installing alternative energy technology such as solar panels or wind turbines) will become to home energy supply what the Internet became to home communications and data gathering, and eventually this will have deep effects on the businesses of the existing energy supply companies.

Carbon Free’s analyses also show that energy companies themselves have jumped in on the game and seek to leverage microgeneration to their own advantage for opening up new markets for themselves. Carbon Free cites the example of electricity companies (in the UK) reporting that they are seriously researching and developing ideas for new geothermal energy facilities, as these companies see geothermal energy production as a highly profitable wave of the future. Another conclusion of Carbon Free is that solar energy hot water heating technology is an efficient technology for reducing home water heating costs in the long run, although it is initially quite expensive to install. However, solar power is not yet cost-effective for corporations, as they require too much in the way of specialized plumbing to implement solar energy hot water heating. Lastly, Carbon Free tells us that installing wind turbines is an efficient way of reducing home electricity costs, while also being more independent. However, again this is initially a very expensive thing to have installed, and companies would do well to begin slashing their prices on these devices or they could find themselves losing market share.

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Catégories : renewable energy
jan
9

Parabolic Solar Oven

Posted by Aziz Devje Comments (2)

Mention solar power to someone and they immediately think of solar panels. A parabolic solar oven, however, has a much more practical use when it comes to feeding ourselves.

Parabolic Solar Oven

While searching for ways to reduce the use of nonrenewable resources, you might encounter solar power. Solar power, or solar energy, is the use of the sun’s rays to either create energy (electricity), charge a battery, heat water or other fluids, passively heat homes through glass windows, or even cook foods. When solar power is used to cook food it’s often in the form of a solar oven, which can be used in place of firewood and other fuels in order to cook meals. One popular type of solar oven is the parabolic solar oven, used over others for many reasons.

A parabolic solar oven collects the sun’s rays by using a reflective surface in a parabola, or curved shape. There are many different styles of parabolic solar ovens available, and there are instructions available to create most of them. The parabolic style allows for food to cook at much the same rate as a conventional oven, making it more convenient than other outdoor cooking methods such as campfires. Additionally, since the parabolic solar oven doesn’t use wood or other fuel, it’s quicker to start cooking and requires little time to set up – whereas with a campfire, you’ve got to spend time hunting for firewood, as well as lighting the fire and waiting for it to get hot.

One easy way to start building your own parabolic solar oven is by using a ready-made satellite dish (of course, use one that someone has discarded). Its parabolic shape is perfect for creating the oven, and all you need to do is coat the inside with a reflective substance, such as a mirror finish reflective aluminum sheet. Other people prefer to start their parabolic solar oven with more of a bowl shape, as they believe this allows food inside to cook better and helps to shelter the food from the wind.

Once you have the parabolic solar oven, you need to consider the cooking pot. The pot needs to be of a dark color. It also needs to be placed in the correct position. The parabolic solar oven should be oriented to the sun. The pot should then be placed on a small stand so that it sits at the point of focus for the oven. If you imagine a magnifying glass, the pot should be located where the glass focuses its beam. Once in position, the oven should work for 60 to 90 minutes. If the food is not cooked by then or another pot needs heating, the oven should be readjusted to the orientation of the sun.

When using your parabolic solar oven, be sure to always wear UV (ultraviolet) protective sunglasses that are darkly tinted. The reflection off the aluminum that helps to cook the food at a quick rate also can burn your retinas quite easily. You’ll also want to make sure to cover your parabolic solar oven whenever it’s not in use – this will prevent accidental flashes of light from blinding people as well as prevent the oven from heating up when it’s not needed. If you follow these simple steps, having your own parabolic solar cooker can be a great asset to your environmentally conscious lifestyle.

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Catégories : renewable energy
juil
15

green smoke: Wow Wee Paper Jamz Guitar Series I – Style 5

Posted by Aziz Devje Comments (1)

Wow Wee Paper Jamz Guitar Series I – Style 5

Wow Wee Paper Jamz Guitar Series I - Style 5

List Price: $23.89


  • Paper Jamz Instant Rock Star Series 1



Wow Wee Paper Jamz Guitar Series I - Style 5

List Price: $23.89

Your Price: $11.99- Wow Wee Paper Jamz Guitar Series I - Style 5


Become an instant rock star with Paper Jamz! Its not air guitar its music for real! Active Graphics circuit-embedding technology allows you to play like a pro just by touching the Paper Jamz guitars fret and strumming the strings image. Series 1 feat

Your Price: $11.99 – Wow Wee Paper Jamz Guitar Series I - Style 5

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Catégories : planète bleue
juil
15

green smoke: First Alert SC07CN Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Location

Posted by Aziz Devje Comments (5)

First Alert SC07CN Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Location

First Alert SC07CN Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Location

List Price: $64.99


  • Battery-operated combination carbon monoxide and smoke alarm with voice location
  • Uses electrochemical carbon monoxide sensor–the most accurate technology available
  • Photoelectric sensing technology reduces nuisance smoke alarms
  • Remote-controlled silence/test button; low battery warning; peak level memory recall
  • Includes 2 AA batteries; 5 year limited warranty



First Alert SC07CN Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Location

List Price: $64.99

Your Price: $25.00- First Alert SC07CN Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Location


The First Alert SC07CN Combination Talking Smoke Alarm and Carbon Monoxide Detector helps protect you and your family from two deadly threats: fire and carbon monoxide. This battery-operated unit includes a voice alarm that tells you the location of

Your Price: $25.00 – First Alert SC07CN Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Location

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Catégories : planète bleue
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15

Kidde KN-COB-IC Hardwire Carbon Monoxide Alarm with Battery Backup, Interconnectable

Posted by Aziz Devje Comments (1)

Kidde KN-COB-IC Hardwire Carbon Monoxide Alarm with Battery Backup, Interconnectable

Kidde KN-COB-IC Hardwire Carbon Monoxide Alarm with Battery Backup, Interconnectable

List Price: $59.99


  • Battery pull tab eliminates battery installation time and keeps battery fresh
  • Quick connect installs quickly with snap on harness
  • Adjustable mounting bracket allows for fast installation and perfect alignment
  • Tamper resist locking feature to deter battery and alarm theft
  • Kidde?s carbon monoxide alarms meet the requirements of Underwriters Laboratories (UL), an independent facility that tests products for compliance with widely-accepted safety standards

Kidde KN-COB-IC Hardwire Carbon Monoxide Alarm with Battery Backup, Interconnectable

List Price: $59.99

Your Price: $34.00- Kidde KN-COB-IC Hardwire Carbon Monoxide Alarm with Battery Backup, Interconnectable
Kidde’s KN-COB-IC hardwire carbon monoxide interconnectable alarm with battery backup helps to provide your home with comprehensive protection against the dangerous threat posed by the odorless and colorless gas. With an increasing number of st

Your Price: $34.00 – Kidde KN-COB-IC Hardwire Carbon Monoxide Alarm with Battery Backup, Interconnectable

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4

green smoke: First Alert SA302CN Double Sensor Battery-Powered Smoke and Fire Alarm

Posted by Aziz Devje Comments (1)

First Alert SA302CN Double Sensor Battery-Powered Smoke and Fire Alarm

First Alert SA302CN Double Sensor Battery-Powered Smoke and Fire Alarm

List Price: $44.99


  • Dual sensing ionization and photoelectric battery-operated smoke alarm
  • Intelligent sensing technology reduces nuisance alarms
  • Tamper resistant
  • Low battery warning with one-button silence and test feature
  • 9-volt battery included; 10-year limited warranty



First Alert SA302CN Double Sensor Battery-Powered Smoke and Fire Alarm

List Price: $44.99

Your Price: $19.65- First Alert SA302CN Double Sensor Battery-Powered Smoke and Fire Alarm


No one wants to think about a fire in their home, but being prepared and recognizing signs of danger early can help keep you and your family alive and safe. The First Alert SA302CN Double Sensor Battery-Powered Smoke and Fire Alarm is equipped to det

Your Price: $19.65 – First Alert SA302CN Double Sensor Battery-Powered Smoke and Fire Alarm

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Catégories : planète bleue
juin
21

solar: Coleman Free-Standing Tent Fan

Posted by Aziz Devje Comments (5)

Coleman Free-Standing Tent Fan

Coleman Free-Standing Tent Fan

List Price: $18.99


  • Keep the fresh air flowing in your tent or RV with this handy, free-standing fan
  • Adjustable two-speed airflow control
  • Runs up to 21 hours on set of four D batteries (sold separately)
  • Packs down to compact size for easy storage and transport
  • Includes limited manufacturer’s warranty; details included with purchase



Coleman Free-Standing Tent Fan

List Price: $18.99

Your Price: $16.34- Coleman Free-Standing Tent Fan


Coleman 830-352T Free Standing Tent Fan Features: Perfect fan for all your camping adventures! Adjustable two-speed airflow control Tent fan folds easily for compact storage Operates up to 21 hours on 4 D-cell batteries (not included)No one likes

Your Price: $16.34 – Coleman Free-Standing Tent Fan

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Catégories : planète bleue
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21

solar: Casio Men's MQ24-7B2 Analog Black Resin Strap Watch

Posted by Aziz Devje Commentaires fermés

Casio Men’s MQ24-7B2 Analog Black Resin Strap Watch

Casio Men's MQ24-7B2 Analog Black Resin Strap Watch

List Price: $21.95


  • Quartz movement
  • Protective mineral crystal protects watch from scratches
  • Case diameter: 35 mm
  • Plastic case; white dial



Casio Men's MQ24-7B2 Analog Black Resin Strap Watch

List Price: $21.95

Your Price: $6.99- Casio Men's MQ24-7B2 Analog Black Resin Strap Watch


With a classically casual style, the quartz-powered Casio Men’s Analog Bracelet Watch #MQ24-7B2 features a white dial face, which is embellished with stand-out Arabic numerals and minute indexes and comes protected by a durable mineral dial window. A

Your Price: $6.99 – Casio Men's MQ24-7B2 Analog Black Resin Strap Watch

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Catégories : planète bleue
juin
21

solar: Sanyo Eneloop Ni-MH Charger and 8 Rechargeable AA and 4 Rechargeable AAA Batteries

Posted by Aziz Devje Commentaires fermés

Sanyo Eneloop Ni-MH Charger and 8 Rechargeable AA and 4 Rechargeable AAA Batteries

Sanyo Eneloop Ni-MH Charger and 8 Rechargeable AA and 4 Rechargeable AAA Batteries

List Price: $49.99


  • Holds charge up to 3 years. Each eneloop will maintain 75% capacity after 3 years of non-use.
  • Recharge 1500x. New and Improved! Each eneloop can be recharged 1500 times.
  • Pre-charged and ready to use in your favorite devices
  • Less than 4 cents per recharge. Save money. Over thier lifetime each eneloop costs less then 4 cents per recharge.
  • INCLUDES: (8) AA eneloop, (4) AAA eneloop and (1) 4 battery charger



Sanyo Eneloop Ni-MH Charger and 8 Rechargeable AA and 4 Rechargeable AAA Batteries

List Price: $49.99

Your Price: $30.95- Sanyo Eneloop Ni-MH Charger and 8 Rechargeable AA and 4 Rechargeable AAA Batteries


New, improved eneloop kit in colors eneloop – ready to use rechargeable battery. Since its launch in November 2005 eneloop has become well-known around the world as it has revolutionized the consumer-use rechargeable battery segment with its unique f

Your Price: $30.95 – Sanyo Eneloop Ni-MH Charger and 8 Rechargeable AA and 4 Rechargeable AAA Batteries

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Catégories : planète bleue