Factory Direct Sale: A-Grade High Efficiency 250W Poly Solar Panels

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
5000 watt
Supply Capability:
40000000 watt/month

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Product Description:

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Our solar cells are widely used in solar pump, solar lighting, lamps, household electricity, traffic, communication, meteorological, building and photovoltaic power plants and so on.

 

Characteristics

Max Power Voltage Vmp(V):               30.4

Max Power Current Imp(A):                 8.26

Open Circuit Voltage(V) :                       37.5

Voc(V)Short Circuit (A):                         8.88

Current Isc(A)Max Power Pm(W):      250

 

Temperature Coefficient of Cells

 

NOCT45
Temperature Coefficients of Isc(%/℃)0.04
Temperature Coefficients of Voc(%/℃)-0.34
Temperature Coefficients of Pmp(%/C)-0.42

 

Mechanical Data

Dimension1638x982x35
Weight18kg
No. of Cells and Connections60(6x10)
Tolerance0~+5W
CellPolycrystalline Cell
Packing812 Pcs/40ft(H) Container

 

Limits

Opening Temperature-40℃ to +85℃
Storage Temperature-40℃ to +85℃
Max System Voltage1000VDC(IEC)/ 600VDC(UL)

 

Guarantees

Products Guarantee12yrs free from defects in materials and workmanship
Performance GuaranteeNo less than 90% within 10yrs and no less than 80% within 25yrs
CertificatesTUV(IEC61215&IEC61730), CE

 

IV Curve

 

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Q:SOLAR PANEL ENERGY! HOW DOES IT WORK?
The the very first thing to comprehend is that there's not anything difficult approximately a sun panel. It is not anything greater than a number of sun or PV cells on a board that's outfitted to essentially the most suitable side of your dwelling, mostly at the roof. There are courses available in the market that educate you methods to construct a sun panel and a windmill for simply $a hundred and fifty, and it’s very handy to make. Best of all, you'll be able to keep 70% or extra for your vigour invoice, including as much as enormous quantities of greenbacks each and every yr in financial savings. I reviewed each unfastened courses and paid courses and feature arise with our most sensible to Build your possess sun panels.
Q:Using a solar panel to make energy?
DIY okorder.com
Q:How many solar panels do I need?
How image voltaic Cells artwork by utilizing Scott Aldous interior this textual content a million. creation to How image voltaic Cells artwork 2. Photovoltaic Cells: replacing Photons to Electrons 3. How Silicon Makes a image voltaic cellular 4. Anatomy of a image voltaic cellular 5. power Loss in a image voltaic cellular 6. image voltaic-powering a house 7. fixing image voltaic-skill themes 8. image voltaic-skill execs and Cons 9. a lot extra advice 0. See all actual technology articles you've likely considered calculators which have image voltaic cells -- calculators that by no skill favor batteries, and from time to time do not actually have an off button. see you later as you've adequate difficulty-free, they look to artwork continuously. you may have considered larger image voltaic panels -- on emergency street indicators or call packing bins, on buoys, even in parking a lot to skill light fixtures. besides the actual shown reality that those larger panels are not so user-friendly as image voltaic powered calculators, they are accessible, and by no skill that frustrating to p.c. out in case you recognize the position to look. There are image voltaic cellular arrays on satellites, the position they are used to skill the electric powered structures. you've likely also been listening to about the image voltaic revolution for the perfect two decades -- the concept quicker or later we can all use free electrical energy from the solar. it really is a seductive promise: On a brilliant, sunny day, the solar shines about a million,000 watts of power in conserving with sq. meter of the planet's floor, and if shall we collect all of that power shall we absolutely skill our homes and places of artwork for free.
Q:Tips for convincing my school to put solar panels on the schools roof?
Installing solar cells cost money. It would swamp the capital spending portion of the school budget. I doubt the school board would put it into the budget because of the cost involved. If they did I guarantee you that, when presented to the voters, they would turn down the budget. If you really want to do something, I suggest a fund raiser, but you are probably looking at raising more than $500,000. Good luck.
Q:how much do solar panel batteries cost?
solar panel batteries have many sizes. we can provide the price based on the power. in China it is 0.5625 dollar per watt.
Q:how much money do solar panels cost?
There are a lot of factors to consider. Net metering, utility rates, number of hours of daylight, size and orientation of roof or other location. I can tell you I had a 3.74 kwhdc system which reduces my bill by about $200 a month. It cost $26K installed, I received a $0K rebate from my utility and a $2K federal tax credit. Businesses have always been able to get a 30% fed. tax credit, this year everyone gets it. If this is a business you plan on owning for a long time there is no reason why you can't do the install in stages. Of course making sure you are conserving as much energy as possible will also help. Using energy efficient lighting, appliances and electronics, Turning off lights, monitors, computers, printers etc when people go home, sharing printers and other resources, adjusting the thermostat and using natural light can all help reduce your electricity usage.
Q:Is there a free solar panel program for veterans?
yes. there is a free solar panel program for veterans.
Q:Benefits of Solar Panels?
There's a few different kinds of solar panels. Some of them are only for collecting heat, they're relatively inexpensive and not a bad deal, though installation can be expensive of course. The most sophisticated of these use some pretty high tech collectors to heat up an antifreeze solution that in turn is circulated through a reservoir (how water heater), to supply the house. Your electric producing solar panels are more expensive. You can go on OKorder and do a search on photovoltaic panels and get a pretty good idea real quick. The panels alone can run you 2 or 3 bucks a watt of output or more, and you may need 3 or 4 thousand watts of output to give you reasonable system for your house, depending on how much electricity you use. Then there's installation, for which you may need a professional electrician and so on. If you want a system incorporating deep cycle batteries then that's another expense, but you don't necessarily need those if you're not planning to take yourself completely off the grid. Not that the systems are really complicated. Some people wire panels together themselves from scrap cell components to save money. Of course you'd need to understand the basic wiring involved for that, and you'd almost certainly be required to retain an electrician to tie any system into the grid itself. Although there is such a thing as a plug in grid tie inverter. This is is a gadget that will take your DC solar panel output and feed it into the standard wiring of your house via an ordinary electrical outlet. You'd still need to understand enough to get the DC voltage right no doubt.
Q:question about Solar Panels?
Assuming that you have / will upgrade wiring sizes to carry the extra wattage, that the new total wattage resulting from the addition doesn't overload any existing charge controller, diodes and / or inverter you have installed, then paralleling it straight into one of the other 2 volt groups should do nothing but add current to the system. True, it will be somewhat imbalanced, but it will work. Your other options would be to reconfigure everything down to it's native 2 V configuration which will raise current and lower voltage, with the additional panel creating the additional current to raise the wattage or to put it in series with the other 4 panel clusters so that you would get 36 V and additional current to account for the raised wattage. One last approach might be to set it up on another battery bank of it's own (small and at 2 V) to then connect to the same inverter. You'd be getting more power and storage capability that way, sort of a partial backup system, really, that will take some of the load off the other components to help extend their useful lives and get a bit more flexibility into it as well. The choice is yours here. That is all the ways that the system can be connected in, assuming everything in the first sentence checks out;-) It's difficult to make a recommendation without knowing what other components are in use and what the maximum ratings they carry are. Just remember that parallel connections add current and voltage stays the same, series connections add voltage and the current remains the same and you can figure out what to do with this thing to help you if you stay within maximum ratings for the charge controller, diodes and / or inverter involved. Good luck and stay safe!
Q:how often do you have to replace solar panels?
Expect a water heating panel to last about the same as a water heater, 0 to 5 years. Actually, my brother's system is coming up on 5 years, and is not giving trouble yet, so maybe technology has advanced. I have actually never personally known of anyone replacing a solar electric panel due to wear-out. I have heard of occasional replacements due to accidents, including natural disasters like lightning strikes. And one brand of panels had manufacturing defects around the year 2000, but that manufacturer owned up and replaced those free of charge to their customers. A standard warranty on a solar electric panel nowadays is 25 years.

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