Archive for ◊ September, 2009 ◊

 
 
solar panels
Hayden P asked:


Is the energy required to manufacture solar panels significant enough to affect the cost-effectiveness of solar energy?

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solar panels
shaneo95 asked:


How do solar panels actually work when they install them do they install plugs with them i went to use them the heat a cage but its just a standard plug and arnt the solar panel pluggs like little small things

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Guest Author: Brett Stephens


After recently reading a New York Times article, we started thinking about home solar panel politics. You see, although solar power is gaining popularity as a renewable energy solution for home, it will never become mainstream without the backing from the federal government.

A poll by the Nuclear Power Industry revealed that the number one choice for generating power was not from nuclear, coal or natural gas, but from solar energy. However, at the time the poll was taken solar only provided for about 0.01 percent of America’s power supply. Solar power is popular, but there’s not enough investment!

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Guest Author: Mark Hostetler


Living in Nevada, the sun is an almost constant companion. This gives Nevadans a unique opportunity to use solar radiation powers for good. In April, a tour of southern Nevada homes shed some light on the subject of solar powered homes. Hosted by the American Solar Energy Society, this Nevada branch of the National Solar Tour explored homes that used both passive and active solar power, thermal hot water systems, and other environmentally features. However, unless you’re a green technologies expert, or took the tour, you may not know the difference between passive and active solar, or how thermal hot water is different than average. Let me help you understand!

Active solar technology is the one that most people may be familiar with. It involves having a solar panel that collects the sun’s energy and converts it into electricity. These have a battery where energy is stored, so electricity can still be used at night, and, to a certain extent, on cloudy days. Solar panels are an excellent way to make electricity, especially in remote areas. While they are moderately costly to set up, and do require some maintenance, they provide reliable and free electricity, even in climates far less sunny than Nevada’s.

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Bleeding Autumn asked:


My friends and I are fundraising to get solar panels. We want to have two ground stands and use utility and solar power. How much would this cost?

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solar panels
Stonecutter432 asked:


I want to know how I can determine my area’s (Rochester NY) yearly solar energy output to see if it would make economic sense to install solar panels. Any websites or resources where I can look?

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Guest Author: Unitek Collge


Training And Certification Requirements For Careers In Solar Panel Installation



If you are looking to enter the field of solar panel installation, you would greatly benefit from being aware of the various training and certification requirements for the job. Obviously, extensive training is crucial if you are to have a certain degree of competency, however, certification is not necessarily an absolute requirement for solar panel installers in most states.

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Guest Author: Scott Porter


The news is out. Residential solar water heating systems now cost between $1,500 and $3,500 - compared to $150 to $450 for electric and gas heaters. Solar hot water systems are still significantly more expensive initially… So how is that FREE?

With energy prices soaring, considering the savings in electricity or natural gas, experts report that solar water heaters now pay for themselves within 4-8 years!

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Guest Author: Reshma


Solar panels are gaining interest amongst people of this energy crunched world. What are solar panels? They are an array of photovoltaic cells which capture the energy of the solar rays. In simple terms, the solar panels capture the energy from the sun during the day for later use. Solar energy is renewable source of energy and does not get depleted like coal or natural gas. It can be tapped as much as required and used to power all our energy needs. With the invention of solar panels, which has helped mankind tap the solar energy, solar power has become an increasingly powerful source of energy in the last decade or so.

Solar panels are made of crystalline silicon and gallium arsenide. The same silicon is used in the microprocessor chips. The gallium arsenide is very expensive which also makes the initial investment cost of solar panels high. These panels harvest the solar energy and convert it to electricity. The electricity produced depends on how much of energy is harvested. Roughly, a solar sell of 0.2 m in diameter can create electricity of 2 amps of 2 volts when exposed to direct sunlight at the surface of the equator. However, the electricity production is decided not only by the size of the panel but also by the quality of materials used in making the solar cells. With time as well as with wear and tear, the electricity production capacity of the solar cells comes down.

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solar panels
Idaho asked:


I’ve been doing a lot of research on places to live when I finish school, and I really think Oregon is the perfect place for me. Me and my boyfriend want to build an off-the-grid house. The thing is, he says we can’t live in Oregon because it’s not sunny enough, and if we relied on solar panels it wouldn’t work out. Is there some other off-grid solution besides solar panels we could use as backup? I don’t know much about wind turbines and how much they would cost. Does anyone living in a rainy, cloudy climate make much use of solar panels? Or should I move to a state that has more days of sunshine (I’ve been considering Colorado)? Suggestions? Thanks.

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