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Sun Wind
This article explains the fundamental terms related to sunlight and residential solar energy systems. You will learn about units of measure, forms of solar radiation, spectral distribution, energy distribution, and solar position.
Germany and Japan are often cloudy or foggy but is where most solar panels now sold in the United States are produced. Because of the way solar modules produce power from direct, diffused and reflected light it works great in these conditions. A very high performing solar array can be found on a foggy beach in California.
Measuring Light and How Solar Panels Use It
The following terms related to different aspects of light and their characteristics as they come in contact with different physical formations on Earth. The definitions below will help explain how some residential solar energy systems seemingly in areas with poor sun quality can actually achieve respectable power output.
Irradiance - The rate of solar radiation falling on a given area at a moment in time. Irradiance is measured in units of kW/m2 (read kilowatts per square meter).
Irradiation - The amount of solar energy over time. Irradiation is measured in units of kWh/m2/day and read kilowatt-hours per square meter per day. Different locations through the United States (and the World) have different levels of irradiation. As in previous articles, you can find many maps on the Internet that will show the average annual solar irradiation throughout the United States.
Light Characteristics and Solar Fundamentals
Deflection - The amount of light lost when the solar panels aren't facing the sun squarely as the sun moves across the sky. This loss of light is called deflection. Even though solar cells are etched on the surface into little pyramids to collect light from all angles, coated with a light diffusing coating, and protected with light diffusing glass, more light is deflected when the sun is not directly in front of the panels.
Spectral distribution - The bulk of the solar light spectrum which reaches the Earth's surface is ideally suited for conversion by solar (PV) cells into electrical energy.
The Sun's Position as It Relates to Solar Energy Systems
Two coordinates describe the position of the sun at any given time. These coordinates allow solar technicians to calculate and orientate the solar panels to optimal attract and convert the sun's light into solar generated electricity.
Azimuth - Describes the direction from east to west in degrees (°). North is 0 degrees. East is 90 degrees. South is 180 degrees. West is 270 degrees. The layout of this grid is not unlike the face of a compass. The markings are in degrees indicated on the face.
Altitude - Is the measurement in degrees, like on a compass, that the sun is from the horizon. Altitude is measured in degrees as well. Altitude is the point in the sky where it is located right over head often referred to it's highest point in the sky. Just like a plane has an altitude that it travels at across the sky as it is measured above the horizon. So does the sun.
Irradiation Example for a Solar Energy System
In the coast area of California, residential solar energy systems are sized using an average of 5.5 sun hours per day. More often than not, most people think or comment that their house gets more like 8 to 15 hours of sunlight per day. This is true but sunlight is different than solar sun hours per day.
The number of hours per day that your house receives direct sunlight must take into account challenges like fog, rainy days, number of night hours, and deflection or the amount of light not converting to energy. The sun hour ratings listed for different places throughout the United States is the amount of solar irradiation available to be converted into electricity by a fixed mounted solar array facing true south at the optimal tilt angle. A solar module produces its full rated power only when in direct sunlight, so when the sun is to the East or the West of the module it is not at full production.
Rethinking the Economics of Residential Solar Energy
Doing your part to choose green, solar power can be a bit confusing and complex at times. There are many terms, aspects of the installation, and details about your sun light hours per day that all influence decisions to upgrade your home to solar energy. A very interesting and attractive option currently development in the solar market is the option to rent a residential solar energy system versus having to pay out up to $40,000 for your own solar panels and related equipment.
The economics of residential solar power have changed. Every American homeowner can decide to upgrade to solar energy and avoid large purchase of a solar energy system. New rental programs are now available that give homeowners the chance to adopt residential solar energy without having to make a huge investment.
At Solargies, our goal is to spread the use of renewable solar energy as simply and as rapidly as possible. Daniel Stouffer is a freelance writer and solar energy consultant. Find out how to rent a solar energy system at: => [http://www.reThinkingSolar.com]
Why do I have chronic dry lips even when not exposed to cold, wind, sun or dry weather.?
Why is it that the more water I drink, the drier my lips become. And the more salt in the food, the less dry my lips are? Seems quite contradictory.
It may be you have issues with water retention - especially as eating salt seems to help. dry lips, without exposure to dry heat etc indicates dehydration. I'd suggest cutting your drinking down a little - it is possible to drink too much.
Sun Wind Quintet at Burnside Christmas 2009.flv
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 Sun/Moon Wind Chime  US $7.99
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 Visor Wind Sun Deflector Mazda Mazda3 04-06 07 4 Door US $10.99
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 Visor Wind Sun Deflector Toyota Tacoma 01 02 03 04 2004 US $13.99
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 GOGGLES ,SUN WIND DUST - New in Box military issue US $15.00
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 Visor Wind Sun Deflector Honda Fit 06 07 08 2008 4 Door US $17.99
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 Visor Wind Sun Deflector Mazda MPV 99-07 LX ES 4 Door US $18.99
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 Visor Wind Sun Deflector Kia Rio 00-02 03 04 05 4 Door US $21.99
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 UNCOMMON OMNITECH SUN WIND DUST GOGGLES VIETNAM WAR ERA W/ BOX & SHADES US $5.50
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 WIND CHIME, MOON AND SUN US $19.98
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 "IZOD" GOLF WIND & WATER RESISTANT WIND SHIRT SUN CONTROL UPF 50+..M...BLACK $60 US $14.00
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 JDM VENT SHADE SUN RAIN WIND WINDOW VISOR VISORS GUARD US $17.99
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Another great place to shop for Sun Wind products is Amazon. They have more than just books!
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Ganz Measuring Spoons Set - Sunflower
$15.00 Bring some fun into the kitchen with this adorable and whimsical set of antique-style Ganz measuring spoons. This is the perfect gift for almost any cook, bride, birthday or house warming. Each spoon has a detailed design on both the front and back. These spoons provide a unique combination of style and function. Made from a sturdy zinc alloy. Each spoon has a sunflower and butterfly at the top of... |
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Highwave Bauhauss Double-Wall Glass Tumbler, Set of 2
$19.99 The only glass you will ever need to keep life simple! This 9 oz tumbler is made of a thermal borosilicate glass that is super strong and durable, making it a great everyday glass. Better yet, it features a unique double-wall, insulated design - so your beverages will stay at the ideal temperature longer and you'll never need to use a coaster - because the glass doesn't sweat! The hand-made design... |
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Catstudio Hand-Embroidered Dish Towel - Idaho
$20.00 Do you enjoy travel and learning about new places? Catstudio geography-themed dish towels bring a location - whether a U.S. state, city, or national park - to life with fun, colorful details. In the process, they add charm to your kitchen or bathroom. Each 100% cotton towel features 12-color artwork that is silkscreened and then framed with a hand-embroidered border. Three woven stripes down both ... |
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Bluetrek Compact Classic Ultra Slim Loud and Clear Carkit Speaker Driver Pack - Black
$59.99 - Bluetrek crystal clear compact classic - Instant handsfree calls - Super slim- Up to 24 hour talktime- Dual microphone- USB Car charger- Up to 30 days standby- Digital signal processor- Compatible with all Bluetooth devicesBTCOMPACT... |
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Navitech portable DVD player / Netbooks / Notebooks / Tablet pc & Laptop in Car Headrest / Back Seat Black Expandable Firm Grip Mount Cradle For The Compaq Mini 702, 702E, MSI WIND U1, Lenovo ideapad S10 & S10e, Fujitsu Siemens' Amilo Mini, Dell Latitu
$22.48 This mount is adjustable in all angles covering its length width and depth. The width can be adjusted through basic expansion, but arms can be unattached with and easy lock slot mechanic and can adjust to three separate levels meaning the side of your d... |
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Navitech portable DVD player / Netbooks / Notebooks / Tablet pc & Laptop in Car Headrest / Back Seat Black Expandable Firm Grip Mount Cradle For The Msi Wind U160DX, Wind U135DX, Wind12 U250, Wind U160, Wind U135, Wind U130, Wind12 U230, Wind12 U200
$22.48 This mount is adjustable in all angles covering its length width and depth. The width can be adjusted through basic expansion, but arms can be unattached with and easy lock slot mechanic and can adjust to three separate levels meaning the side of your d... |
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Partners Artisan Hors D'oeuvre Crackers Sun Dried Tomato & Herb, 5.6-Ounce Boxes (Pack of 6)
$16.71 Manufactured by a 16 year old company that is family owned. Light, crispy texture. Tasty. Hors D'Oeuvre Style Crackers. Certified Kosher. All Natural. Healthy Gourmet. Award Winning. No Hydrogenated Oils. No Trans Fats. Artisan Products. Competitive Prices. Grocery. Deli. Gift Sizes. Sun-Dried Tomato & Herb. Roasted Garlic & Rosemary. Parmesan & Herb. Olive Oil & Sea Salt. Asiago & Black Pep... |
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Prickly Pear Syrup - 23 oz - Giant Size - Plus 1 Prickly Pear Lip Balm - Made from Natural Prickly Pear Juice - Cactus - Southwest + Prickly Pear Lip Balm SPF 15 Moisturizing Lip Balm - 1 Tube - Wind & Sun Screen Lip Protection & Treatment - Lipbalm For Dry - Cracked - Chapped Lips
$17.50 The naturally beautiful magenta colored syrup made from prickly pear cactus juice is customarily used over pancakes and desserts, but is also used to make exceptionally flavorful Cactus Margaritas, Wine Coolers, Spritzers, and Prickly Pear Lemonade. Label may vary from picture. Also receive (2) Prickly Pear Lip Balms. Give your lips the soothing moisturizer of our Pricly Pear Lip Balm. Our refres... |
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Natural Nectar Mediterranean Sea Salt, Fine, 26.5-Ounce Canisters (Pack of 12)
$29.96 This dazzling white sea salt originates in the Mediterranean Sea, where crystal clear waters ebb and flow through an environmentally preserved coastal region. Here, the sultry sunshine and gentle winds evaporated the sea water, leaving behind premium Nat... |
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2.75 inch x 2 inch (7.5 x 5cm) Acrylic Keyring Wenceslaus Hollar - The sun and the wind
$3.50 Brand new item ready for rapid despatch... |
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