When do solar panels pay for themselves?
The payback on solar panels depends on the type of panel, as well as what incentives are available. For example in Louisiana the state will pay for up to half the cost on your system, so you could install a Solar Water Heating panel for around 2500 which would pay for itself within the first 3 years. If you replace a gas or electric Pool heater with Solar Pool heating panels they would pay for themselves within 1~2 years.
If you mean Solar Electric panels, they have the longest payback of all. Even with a 30% incentive from the US government most Solar Electric systems will still take 8~12 years to pay for themselves. Luckily they last 25~30 years.
If you mean Solar Electric panels, they have the longest payback of all. Even with a 30% incentive from the US government most Solar Electric systems will still take 8~12 years to pay for themselves. Luckily they last 25~30 years.
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Solar tiles are about four times as much as solar panels when you price them per watt. The panels have a better warrenty and are eisier to install. Solar tiles are for those communities that have restrictions on how the house must look. Also consider putting them on a rack beside the house instead o…f on the roof. The fewer holes in the roof the better. Neither one produces enough power to ever pay for themselves, nor are they green energy as they have more power used in their construction then they ever give off. They certainly have their place in remote areas where you can not tie into the grid, just do not plan on ever getting enough power to pay for them. Answer Solar Panels is the simple answer. Elaborating on that is a bit more complicated. Solar Tiles are made to blend in with your existing roof tiles, so that a community, or HoA that requires aesthetics to be maintained won't deny you the ability to receive solar tiles. Solar Panels have a higher production rate per square foot compared to Solar tiles. Why is this? Solar Tiles get hotter, as Solar panels generally stand off from the roof at about 3" - 6" this allows air to cool to panel. As solar panels and tiles get hotter their voltage production starts to drop. Cooler it is, more voltage these panels produce. Final large difference between the two is cost, generally Solar Tiles cost a bit more for equal quality PV Cell compared to Solar Panels. Solar Panels also have a larger selection from poor or bad quality to high or great quality. (MORE)
PRN. (As required.) As solar panels get dirty or coated with other things that "block" incoming light, their efficiency goes down. Obviously. The good news is that a panel doesn't just "stop working" out of the blue because it wasn't cleaned. Its efficiency will just fall off gradually. Eyeball the …units every week or two and make a call. There is no fixed interval because the local environments where they are put up vary from minor to heavily laden with dust or other airborne "junk" that can settle on the surface of the panel. Oh, and call a local solar company and ask some questions. They're the experts. And they want to share what they have learned, what they know. (MORE)
Silicon atoms have room for eight electrons in their outer bands,but only carry four in their natural state. This means there isroom for four more electrons. If one silicon atom contacts anothersilicon atom, each receives the other atom's four electrons. Thiscreates a strong bond, but there is no po…sitive or negative chargebecause the eight electrons satisfy the atoms' needs. Silicon atomscan combine for years to result in a large piece of pure silicon.This material is used to form the plates of solar panels. Here's where science enters the picture. Two plates of pure siliconwould not generate electricity in solar panels, because they haveno positive or negative charge. Solar panels are created bycombining silicon with other elements that do have positive ornegative charges. Phosphorus, for example, has five electrons to offer to otheratoms. If silicon and phosphorus are combined chemically, theresult is a stable eight electrons with an additional free electronalong for the ride. It can't leave, because it is bonded to theother phosphorus atoms, but it isn't needed by the silicon.Therefore, this new silicon/phosphorus plate is considered to benegatively charged. In order for electricity to flow, a positive charge must also becreated. This is achieved in solar panels by combining silicon withan element such as boron, which only has three electrons to offer.A silicon/boron plate still has one spot left for another electron.This means the plate has a positive charge. The two plates aresandwiched together in solar panels, with conductive wires runningbetween them. With the two plates in place, it's now time to bring in the 'solar'aspect of solar panels. Natural sunlight sends out many differentparticles of energy, but the one we're most interested in is calleda photon. A photon essentially acts like a moving hammer. When thenegative plates of solar cells are pointed at a proper angle to thesun, photons bombard the silicon/phosphorus atoms. Eventually, the 9th electron, which wants to be free anyway, isknocked off the outer ring. This electron doesn't remain free forlong, since the positive silicon/boron plate draws it into the openspot on its own outer band. As the sun's photons break off moreelectrons, electricity is generated. The electricity generated byone solar cell is not very impressive, but when all of theconductive wires draw the free electrons away from the plates,there is enough electricity to power low amperage motors or otherelectronics. Whatever electrons are not used or lost to the air arereturned to the negative plate and the entire process begins again. One of the main problems with using solar panels is the smallamount of electricity they generate compared to their size. Acalculator might only require a single solar cell, but asolar-powered car would require several thousand. If the angle ofthe solar panels is changed even slightly, the efficiency can drop50 percent. Some power from solar panels can be stored in chemical batteries,but there usually isn't much excess power in the first place. Thesame sunlight that provides photons also provides more destructiveultraviolet and infrared waves, which eventually cause the panelsto degrade physically. A: When sunlight hits the solar panel it produces electricity forloads of homes. A: If you want to know how solar panels work.... A solar, or photovoltaic, cell is used to convert energy in theform of electromagnetic radiation that is incident on it (ie thattransfers light energy to it) into electrical energy. The cell itself consists of 2 different types of dopedsemi-conductor material. Doping is the process whereby impurity ions are introduced tothe crystal lattice, with either one or fewer, or one extra freeelectron. Once doped, the materials are not electrically charged. In the P-type material, there are excess holes, and in theN-type material, there are excess electrons. When layered on top ofeach other, at the junction, the electrons fill the holes. This means that on the P-side, there is a shortage of holes (asopposed to the number it would normally contain) so the materialhas a negative charge. On the N-side, there is a shortage ofelectrons, giving it a positive charge. This establishes apotential difference of 0.5V, but there is no current, as there areno free charge carriers at the junction. When light shines on the cell, electrons are released byphotons from the electron-hole pairs (photoelectric effect*), onthe P-side of the junction. This alters the equilibrium at thejunction. The electrons then flow to the positively charged n-typeside, and the holes flow to the p-type side. This creates acurrent. If there is an external, unbroken circuit attached to the cell,charge carriers are pushed through. As they go, they dissipateenergy. - If there is a greater light intensity, more photons arereleased per second, so there are more charge-carriers liberatedper second, a greater current, and more power available. * Particular frequencies of photons, or quanta of light energy,are absorbed by electrons so they have enough energy to move to ahigher energy level/leave the surface of the metal. (MORE)
they convert solar energy ( light from the sun) into electricity to use in houses or buisnesses. to install, it costs money, but the energy is free from nature! :)
Usually solar panels are placed on the roof a building but depending on the design it could be placed anywhere. .
I've been looking into this recently because it's so expensive to buy a new system. I've been able to figure it out from instructions I got on this great website. I bought the manual before they had the videos to go along with it and the manual is great. Gives everything you need to know so I'm sure… it's great with the videos too. Here's the site: www.NewDIYSolar.com Good luck! (MORE)
There is no telling how long a solar panel should last. As long asit is not damaged it should last for years.
How are solar panels made? . Discover the process of making a solar panel . Making solar panels is a delicate process, and it is for this reason that major solar advances did not come into play until the lattermost quarter of the last century, when advances in semiconductors and photovoltaic d…esign allowed increasingly efficient and affordable solar cells to be developed.. Crystalline Silicon Solar Panels . The creation of solar panels typically involves cutting crystalline silicon into tiny disks less than a centimeter thick. These thin, wafer-like disks are then carefully polished and treated to repair and gloss any damage from the slicing process. After polishing, dopants (materials added to alter an electrical charge in a semiconductor or photovoltaic solar cell) and metal conductors are spread across each disk. The conductors are aligned in a thin, grid-like matrix on the top of the solar panel, and are spread in a flat, thin sheet on the side facing the earth.. To protect the solar panels after processing, a thin layer of cover glass is then bonded to the top of the photovoltaic cell. After the bonding of protective glass, the nearly-finished panel is attached to a subtrate by an expensive, thermally conductive cement. The thermally conductive property of the cement keep the solar panel from becoming overheated; any leftover energy that the solar panel is unable to convert to electricity would otherwise overheat the unit and reduce the efficiency of the solar cells.. Despite these protective measures against the tendancy of solar panels to overheat, it is vital that when installing a solar panel, additional steps should be taken to ensure the solar panel is kept cool. Elevating the solar panel above ground (see solar panel mounts) to let the airflow underneath cool the device.. Amorphous Silicon Solar Panels . Amorphous silicon solar panels are a powerful, emerging line of photovoltaics, that differ in output, structure, and manufacture than traditional photovoltaics which use crystalline silicon. Amorphous silicon solar cells, or A-si cells, are developed in a continuous roll-to-roll process by vapor-depositing silicon alloys in multiple layers, with each extremely thin layer specializing in the absorption of different parts of the solar spectrum. The result is record-breaking efficiency and reduced materials cost (A-si solar cells are typically thinner than their crystalline counterparts).. Some Amorphous Solar Panels also come with shade-resistant technology or multiple circuits within the cells, so that if an entire row of cells is subject to complete shading, the circuit won't be completely broken and some output can still be gained. This is especially useful when installing solar panels on a boat.. The development process of Amorphous Silicon solar panels also renders them much less susceptible to breakage during transport or installation. This can help reduce the risk of damaging your significant investment in a photovoltaic system. Click here for more more information on amorphous silicon solar panels. (MORE)
The team of Daryl Chapin , Calvin Fuller,& Gerald Pearson created the first working photovoltaic cell in 1954,according to the U.S. Department of Energy. the first P.V. cell had an efficiency of 4% and could power electronics of the day. Department of Angostura of Solar
A solar farm will typically have thousands or even hundreds of thousands of solar panels. A great place for a solar farm is out in a barren area that isn't productive for anything else, but has an abundance of sunlight.
How much energy is used to manufacture ship and install a 200 watt PV solar panel How long does it take for the panel to pay for these costs?
Hi, a good question. Solar Energy International is a non profit group that does research on solar power. They studied this problem for several years. The number of years varies, but runs between 1.5 and 6 years for a panel to earn back it's, "Embodied Energy." Many people I talk to argue that th…is is a bad omen for a panel, the reverse is true. The reason is this: We will always have electricity in our society, the question is what is the best way to produce it. If you built a generator that ran for example on natural gas, and it was very effiecient, say 95%, how long would it take to earn back it's, "Embodied Energy?" The answer is it never does, because after you manufacture and ship a generator like this, it then has to be fed natural gas to continue operating. At least the solar panel has the ability to earn back it's energy after a few years. Hope this helps. Take care, Rudy (MORE)
Solar Panels Ontario was created with the intention of helping thepublic understand the tremendous benefits of using solar power andhelping them save more money on their utility bills. With growingenvironmental concerns, solar power is slowly marching to theforefront of the ever-improving renewable …energy industry market.We hope to present you with simple, easy-to-follow information toallow you to make the best decision when considering residentialgreen energy. (MORE)
Solar panels receive energy from the Sun and use it to produce electricity. They are much cheaper to maintain than oil-powered electricity generators and oil storage tanks. Solar panels are also friendlier to the environment because they let off less pollution to the atmosphere compared to the smell…y emissions which come from oil tanks. (MORE)
Solar panels are many solar cells usually connected in series. They make electricity from sunlight.
Solar panels are a series of cells connected together. Also you can make your own solar panels because today some manufacturers sell the cells individually. I bought a DIY Guide that helps me make my own solar systems at a fraction of retail prices. If you are interested the site can be rea…ched by using the Related Link shown below. (MORE)
An solar panel can help you to get solar energy which is renewable source of energy. if you are in an area where electricity is not available or some sought of shortage is there then you should definitely think to get solar panels. They are a bit costly but worth buy as they will save you ample of… money in long term. (MORE)
Trick question - it's not! Solar panels do not store energy but convert the Sun's energy into electricity. This direct current (DC) electricity (energy) is then transferred immediately through wires to a load (something that uses energy). For most residential uses, solar energy must be inverted from… DC to AC (alternating current) which is the type of energy most houses use. So, actually, solar energy is not stored in solar panels, but converted into useable energy by solar panels. (MORE)
You have to know what your needs are. How many hours? How many watts? Room for future expansion? There are plenty of professional solar installers sites on the internet that will give you free estimates and provide you with all the information to make a sensible choice.
Yes the current goverment must pay up to 65% of the funds needed. . Current U.S President, . Barrack Obama
The number of solar panels in an installation depends on a few factors, mainly the amount of physical space available for the installation and the required output for the panels. Residential and commercial solar grids for houses and businesses often utilize smaller panels and generally take up a sma…ller amount of space. The number of panels these installations use can range from just a few to a couple hundred. Solar power plants however have a very high expected output and take up a very large amount of land. As such, the number of panels at a solar power plant can be in the thousands. A solar power plant in Spain for instance has over 120,000 solar panels and produces 20 megawatts of power. The largest complete solar power plant currently resides in Ontario and boasts almost 100 megawatts of power and utilizes even more panels. (MORE)
Solar panels area group of 36 solar cells arranged on a board to produce a level of usable power. Each cell produces just under 1 vdc. Ganging these up into a set of 36 allows the system to produce around 12 to 15 vdc. This allows the charging of a car battery. They do allow for power in very rem…ote applications and are great for campers and areas were power is not always available. They are much "greener" then portable generators. a solar pannel is a thing that you can put on top of a house or a lamp post that collects sunlight and charges up a battery which can power tvs, friges, freezers and more (MORE)
The most powerful solar panel is the Sunpower Turnkey Solar Solution. If you are thinking of getting this, think again. This effiecient Solar Panel is only built for busieness and Government buildings.
I've been looking into this recently because it's so expensive to buy a new system. I've been able to figure it out from instructions I got on this great website. Gives everything you need to know to build your own panels for a LOT less than it costs to buy them. Here's the site: www.NewDIYSolar.c…om Good luck! (MORE)
Well, it is very low maintenence. All you have to do is buy it, (which seems like a lot of money, but in long terms it isn't) then put it in your selected area and there ya go!
You get the obvious benefits of reduced dependance on the grid and therefore lower utility bills.
All solar panels are made the same. It'd like as heater a watt is a watt!
My guess is that integrating solar panels into pre-existing energy networks would be difficult and costly. You also have to wonder how many solar panels we would need to replace the electricity we use. I imagine it would take very many solar panels just to keep a corporate building in power. I as…sume there would also be much protest towards solar panels coming from the electric companies. If we all switched to solar, the electric companies would either go out of of business or be forced to convert. (MORE)
Solar panels which are solar photovoltaic (solar - electric), i.e. produce electricity (or convert the solar light energy to electrical) directly usually do have solar cells. Solar cells are the building blocks of the solar electric (photovoltaic) systems. The solar cell by definition is the smal…lest technical device that on its own can convert solar light energy in to electricity. The solar module (hold on for the solar panel definition) is the smallest, most basic component that in addition to being able to convert light to electricity also is environmentally protected and has the physical configuration to be mounted in a useful practical photovoltaic solution. I.e. solar cell, yes, you can use to produce electric energy form sunlight but you can not readily place outside exposed to the elements and conveniently connect to rest of the electric circuit of your system. While modules consist (usually) of cells and are meant to be completely enclosed in proper materials (usually frame and long term sealants) to be protected from the elements and have electric leads out ready to be connected to a standard photovoltaic circuit. Solar panels are usually the solar modules themselves (in most cases) but the definition for them is that they are also either one module or several, assembled for proper mechanical mounting. Again in 99% of the cases a module is also a panel - i.e. having both the characteristics of being environmentally isolated and build in a manner ready to be mounted connected to a photovoltaic circuit. Now when we said modules and panels in most cases consist of cells, what we meant is there are technologies of solar panels/modules in which the cell is not an easily identifiable separate component. This is the the case of all of the kinds of thin-film modules. In them the cells are practically intangible or invisible or at least visibly inseparable and are built as a monolith structure of the panel/module. Have in mind we started also the answer with saying this is only for solar photovoltaic. Things are very different for solar thermal (electric) and also different for solar thermal (water and air heating). Much Shorter Answer: Yes. A 12 VDC solar panel usually has 36 solar cells inside the panel. Assume about 0.5 to 0.7 vdc per cell. (MORE)
You can get them installed by solar businesses, probably in your local area. You can also buy them from suppliers on the Internet and install them yourself
coal, oil, and gas for electricity and transportation. Solar power and panels replace all fossil fuels and are much better for the earth.
That depends entirely upon the size of the solar panel and how many cells it has. Panels can be small enough to fit on and power a pocket calculator, generating less than 1 volt, or they can be very large, such as those you might find on a residential rooftop for supplying 110 volt power for the hom…e's needs. Or, they can be absolutely massive, generating megawatts of power, such as the ones used for commercial electricity generation and that compete with nuclear, fossil fuel, hydro, or wind generated electricity. (MORE)
Most solar panels are rectangular in shape. The main reason for this is to be able to get the best use of an area. There are solar panels that are in other shapes also. They don't have to be rectangular to work.
For electricity. Solar panels are alot more effective in space than on earth because the atmosphere absorbs alot of the suns emissions.
They use an unlimited energy source. Which helps reduce the need for burning coal or using other limited resources for energy.
Why do most people still pay for their electricity through the local power company instead of installing solar panels on their homes?
Generally its a cost related issue, or a lack of knowledge of the benefit of solar power. It has a large initial cost, but generally the payback is between 7 to 10 years depending on where you live, rebates and type of electric pay rates. It can also be a matter of convenience, and space. Many pe…ople just don't want to have to bother with one, and some people just might not have anywhere to put one. _________________________________________________________________ Many areas have no payback period. In some areas we get as little as 150 watts per day from 75 watt panels. This means payback on these panels is well past their expected lifespan. The panel set installed on my home has a projected payback of over fifty years. This doesn't mean that they are bad in all applications. Care must be made when deciding of the concept works for you. Areas to avoid include warm areas as heat degrades solar panel operation and lifespan by large amounts. Far Northern or Southern areas that receive less sunlight are also a bad idea. Some local utilities are also not required (as of this date) to perform net metering (most large utilities must). This would then require large and expensive banks of batteries. Mine complete system (self installed) was over $10K and provides over $3.00 a month in total energy. It is a wonderful backup system, but does require a fair amount of maintenance, (MORE)
For a toy: . Look on E-Bay if you are wanting individual solar cells, or a small 12V panel. A typical silicone cell should put about 1/2 volt per cell. Solder several in series to increase the voltage. Another thing you might look at are solar lights at your favorite department store or home… improvement store. Their cells should be wired to put out around 2 or 4 volts (1 or 2 batteries in series). For a large boat: . Also consider E-Bay. You can get larger panels as you may require. Flat single cell silicone will put out the highest power. Flexible panels will conform to contours better, but be less durable and put out less power. A charge controller and MPPT may be hepful. (MORE)
No. They can be recycled. If they are broken, each piece will still work as a solar cell in many cases. It is even possible to home-make them out of copper foil, although they won't make as much power as factory-made ones. Silicon comes from sand, even beach sand, and most solar panels made today ar…e mostly Silicon. Even if they are "used", they still produce very useful amounts of power in daylight, and people will still want them if they are taken out of service. I am writing about photovoltaic electric ones; but the solar panels for heating purposes can be made out of materials from a home improvement store, such as plumbing pipes and duct metal. (MORE)
It lets through the maximum amount of sunlight while protecting the solar cells from getting wet when it rains.
Yes they can as the sun is still producing light energy and it can still be absorbed by the solar cells, only problem is the pressure might break it and so you may need to reenforce it :)
solar panel = assembly of solar cells, which is used to absorb solar energy from the sun and then this energy is converted into electrical energy by the solar panel to use it commercially.......
THis depends on how large the solar farm is. It could range between 10-100 or sometimes somewhere up to 10,000 or 100,000
Solar Panels are devices that use the sun's energy or solar energyand converts it to electrical energy which is then transferred toappliances. It is an environmental friendly device. It does notproduce greenhouse gases like carbon dioxide. If you look on witheconomical views, it saves you a lot of m…oney and is a boon tomankind. (MORE)
Yes and No, A solar panel is made up of solar cells. So a Solar Cells is the main part of collecting solar energy, but they are not the same thing.
Solar panels are good for relatively low-power applications where getting a supply from the grid would be costly or difficult. For example, remote buildings, signs, temporary or mobile equipment. In residential applications, however, compared to the cost of electricity from the grid, the power gener…ated by solar panels is not sufficient to pay for the cost of the panels and their installation. (MORE)
They can. If there on high on a beaming hot day in the sun. Then for a week of rain-they can rust.
Solar panels are not an example of solar energy but rather they are means through which solar energy (that is energy from the sun) is converted into electricity. Check out the related link for great videos and information on solar panels.
No, a solar (or photovoltaic) cell is a single unit. Many cells connected together make up a solar module, or solar panel.
If we do not consider the rebates that some countries offer on solar panels, the payback normally runs between 20 and 25 years. The long payback though ignores the increased benefits to the planet and the possibility of increased electric costs over that time period. Panels will also degrade with… time. Warmer climates may see a slightly longer payback period, due to the decreased performance of solar panels. I have several panels on my home and they actually produce more power in the winter months, despite the shorter daylight periods, due to the cooler temperatures (MORE)
They are both the same thing. Solar panels is just another name for PV or photovoltaic panels. \n\nAs for the price, you have to do research in your local area, as prices differ all over the world. Solar panels are getting cheaper every year, with the price for large quantities in July 2012 at l…ess than US$0.70 per watt. (MORE)
Well solar panels can be on or in a lot of places like homes, restaurants , farms, etc.....