Srp Solar Panels Polycrystalline Silicon Solar Modules 72cell-290w
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- 100000000 watt/month
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1. Structure of Polycrystalline Silicon Solar Modules 72Cell-290W Description
Solar panel refers either to a photovoltaics (PV) module, a solar hot water panel, or to a set of solar photovoltaics modules electrically
connected and mounted on a supporting structure. A PV module is a packaged, connected assembly of solar cells. Solar panels can be
used as a component of a larger photovoltaic system to generate and supply electricity in commercial and residential applications.
2. Main Features of the Polycrystalline Silicon Solar Modules 72Cell-290W
*QUALIFICATIONS & CERTIFICATES
IEC 61215, IEC 61730, MCS, CE, ISO 9001:2008, ISO 14001:2004, BS OHSAS 18001:2007, PV Cycle, SA 8000
3. Polycrystalline Silicon Solar Modules 72Cell-290W Images
4. Polycrystalline Silicon Solar Modules 72Cell-290W Specification
窗体顶端 Electrical parameters at Standard Test Conditions (STC)窗体底端 | |||
Power output | P max | W | 290 |
Power output tolerances | ΔP max | W | 0 / + 5 |
Module effi ciency | η m | % | 14.9 |
Voltage at Pmax | V mpp | V | 35.3 |
Current at Pmax | I mpp | A | 8.22 |
Open-circuit voltage | V oc | V | 44.8 |
Short-circuit current | I sc | A | 8.73 |
5. FAQ of Polycrystalline Silicon Solar Modules 72Cell-290W
Q1:Can we visit your factory?
A1:Sure,welcome at any time,seeing is believing.
Q2:Which payment terms can you accept?
A2:T/T,L/C,Moneygram,Paypal are available for us.
Q3:How to guarantee the Quality of the products？
A3:We have established the international advanced Quality management system，every link from raw material to final product we have strict
Quality test；We resolutely put an end to unQualified products flowing into the market. At the same time, we will provide necessary follow-up
service assurance.
- Q: What in the solar panel wares out so that the panel can not convert the suns energy to electric energy? Please post were you get answers.
- Panel degradation can occur in many ways, but they generally take a long time (40yr old panels are still working...). One problem is diffusion. Since the cells are at a finite temperature and receive energy from the light, atoms in the structure can migrate around the cell. If you mix up materials from either side of the junction, you can reduce or remove the internal field and so charge separation no longer occurs, meaning no more current output. This is generally a very, very slow process. My current research is on the back contacts of cadmium-telluride solar cells. CdTe forms a junction with metals, and this junction has a built in electric field that tries to stop the current going out of the cell. This is bad! It reduces the power you get out. To overcome this, copper is sometimes added. This really cuts down on the restrictions on current, but copper is very diffusive. Within weeks at room temperature it can jiggle its way along grain boundaries (the solar cells aren't one big crystal, but a load of small grains. Our lab makes ones about 0.006mm across). Whilst copper at the back contact is good because it cancels out the effect of the field there, once it gets to the cell junction it has a worse effect. It can act as a 'recombination centre' or 'shunting pathway' - it either absorbs the free charges or takes them somewhere useless and cuts the power output. Copper is a very obvious and quick acting cause of solar panels reducing in output. I believe a similar effect is true for other cells, just with different materials. The quality of the junction degrades slowly as heat and light give energy to atoms in the lattice and make them jiggle around a bit. Once you have things out of place, performance degrades.
- Q: Can solar panels be installed on a barn or agricultural building?
- Yes, solar panels can be installed on a barn or agricultural building. In fact, it is becoming increasingly common for farmers and landowners to install solar panels on their barns or agricultural buildings to generate renewable energy and reduce their dependence on traditional power sources.
- Q: Hey guys :)Well I'm in the middle of doing my PSHCE coursework on sustainable energy, focusing on solar panels. I just wanted to ask you what your opinions are of them? Are they really worth it? Are they sustainable? Will they reduce our energy bills? Those sort of questions :)If you are interested in installing solar panels, please mention that, as it would be great! There's lots of information about them on this site ----
- Bing solar power in Germany. Solar power has an option of assisting in removing some of the burden during daylight, from power generation plants. Anything is a help. Plus they will continue to do it forever (at least a lifetime). But they are not the total answer. Like wind, limited to certain areas. Wave generation is another solution, but still limited to coastal areas. The current design of most supply grids does not allow transportation of power long distances. You want a real eye opener, Bing transportation line looses power grid and see how much energy is wasted, and the amount of carbon put into the air for these losses.
- Q: I'm building a solar panel for the first time and have the tabbed solar cells. I put together 4 strings of 9 cells. And the cells are each 0.55V, 3.6A.Because I'm going to be using the panel indoors and leaning it up against a window pane, I put them in a 24x36 inch poster-size frame. The frame has a plexiglass cover and a thick cardboard backing. My question to you is this. Will the cardboard backing up against the metal underside (positive side) of the solar cells be ok? I don't know if it may catch fire or if holes may burn through when there's full sun.My guess here is it should be ok. But maybe I'm wrong. If I am wrong, or if something should be put in between, please let me know what I should use.Thanks everyone!
- In commercial panels some sort of polymer is often used for backing. With a 2V panel there are 36 cells, which means they can still output about 4V for charging a 2V battery even when hot. The voltage reduces about 2.2mV per degree C per cell. Commercial panels are meant to work up to about 60 degrees C, which is quite normal in the sun. I have found just lying them on the grass the air circulation is reduced, and they get too hot to charge a 2V battery. This means the backing should have good thermal conductivity while being an electrical insulator, as well as mechanical strength. The cells are often encapsulated in a thermosetting plastic first, then laid face down so a liquid polymer can be poured as backing.. I have removed commercial panels from their frames and re-packaged them to work in a very wet environment. I suppose cardboard would work, but it is unlikely to have good cooling so the expected voltage would be lower. As you intend to only operate indoors I suppose it is unlikely you have full sun most of the time anyway, so there could be less heating and less output current accordingly. I think the cardboard is only useful for a short time, and is not strong enough. Temperature wise it is marginal. The link below uses plywood for the backing. The backing is supposed to provide strength too. A sheet of some sort of plastic or laminate (including melamine laminate as in kitchen bench tops) comes to mind too. The cells are supposed to be bonded to the backing for better thermal conductivity. Use silicon RTV to stick cells to the backing, very thinly.
- Q: Hi,I am thinking about getting solar panels installed. # I like to cut my electric bill. #2 I like to eliminate my oil boiler and use some sort of electric boiler.I use about 5000-30000 KW per hour( winter-summer). My oil bill is around 600 month winter time. Over all i pay around 4000 a year. My electric bil now is around 2000-2500 year. Is this possible? I live in NY. I heard you can get up to $35000 rebate from LIPA( Electric company) and 2k from federal and 5k from State( is the state or federal every year?, how does that work). Any help is appreciated.
- How Solar Cells Work by way of Scott Aldous Inside This Article a million. Introduction to How Solar Cells Work two. Photovoltaic Cells: Converting Photons to Electrons three. How Silicon Makes a Solar Cell four. Anatomy of a Solar Cell five. Energy Loss in a Solar Cell 6. Solar-powering a House 7. Solving Solar-energy Issues eight. Solar-energy Pros and Cons nine. Lots More Information 0. See all Physical Science articles You've most likely visible calculators that experience sun cells -- calculators that certainly not want batteries, and in a few instances do not also have an off button. As lengthy as you have got sufficient mild, they look to paintings eternally. You could have visible better sun panels -- on emergency street indicators or name containers, on buoys, even in parking plenty to energy lighting fixtures. Although those better panels are not as ordinary as sun powered calculators, they are in the market, and no longer that rough to identify if you recognize in which to appear. There are sun mobile arrays on satellites, in which they're used to energy the electric strategies. You have most likely additionally been listening to approximately the sun revolution for the final twenty years -- the inspiration that sooner or later we can all use loose electrical power from the solar. This is a seductive promise: On a brilliant, sunny day, the solar shines roughly a million,000 watts of vigour in step with rectangular meter of the planet's floor, and if we might accumulate all of that vigour we might simply energy our houses and places of work free of charge.
- Q: What are the supplies needed in a solar panel field, i know there are the panels. But what about batteries, and converters. Possibly other things, and how many will i need, for a certain amount of panels?
- I am interested also and plan on following up on the information in the next couple of weeks
- Q: Would it be possible to use a lens or a mirror to focus light onto a solar panel in order to make in more efficient? And is something like this already being used? It was just a thought and I haven't spent much time on it, but I figured I'd ask.
- yes it is being done. i've seen adds for such a system. on the other hand, if you had a 5 sq in Lens focused on a small cell, and a 5 sq in cell, they'd be about the same. in fact, the cell might be a bit better because (A) there wouldn't be any loss in the Lens, and (B) it might be that the solar cell would use some frequencies to which the Lens was opaque. in addition, the cost of solar cells is dropping, making the cost of the mirrors or lenses uneconomical by comparison.
- Q: If you buy everything you need for a grid-tied solar set up, can you install it yourself or is it required that a professional installs it?
- By an utility approved qualified individual. The utilities really hate it if their maintenance people working on the power lines gets electrocuted because some solar powered inverter didn't shut off when they shut the line off.
- Q: Can solar panels be used in multi-story buildings?
- Yes, solar panels can be used in multi-story buildings. They can be installed on the roof of the building or on vertical surfaces such as walls or balconies. The availability of space and the structural integrity of the building are important factors to consider when installing solar panels in multi-story buildings.
- Q: how the energy of load connected to solar PV measure.?Want too the basic idea about it.The role of current flowing thrugh the load?Can u explain with example..can explain simply?Im not an electrical student so explain very basics
- Most PV solar panels are labelled with their peak power output - this is the maximum power (measured in Watts) which that panel can generate in full sunlight. Remember these simple formula- V=IR and P=VI The current flowing through load keep the flow of electrons and thus energy is produced.
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Srp Solar Panels Polycrystalline Silicon Solar Modules 72cell-290w
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1000 watt
- Supply Capability:
- 100000000 watt/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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