Solar Panel(250w poly) with TUV and UL Certification

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Loading Port:
Shanghai
Payment Terms:
TT or LC
Min Order Qty:
-
Supply Capability:
3000pcs watt/month

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Product Description:

 Mechanical Characteristics


Max-power Pm(W)                                  250

Max-power voltage Vmp(V)                    30.7

Max-power current Imp(A)                      8.15

Open-circuit voltage Voc(V)                  37.3

Short-circuit current Isc(A)                     8.85

Dimension(mm)                                1650*992*45

Weight(kg)                                              19

Operating Conditions

Operating Temperature                      -40~85°c                                    

Storage Temperature                         -40~85°c  

Maximum system voltage                      DC 1000V


Temperature and Coefficients


NOCT                                                       48± 2°c                      

Temperature coefficient of Voc(%/K)         -0.34

Temperature coefficient of Isc(%/K)          0.09

Power temperature coefficient(%/K)         -0.37

Quality and Warranty

 

--Peak power of single module is guaranteed in±3% power tolerance

--3 years limited warranty on material and workmanship

--Limited power warranty:10 years 90% and 25 years 80% limited warranty for minimum power output



Packing Configuration

 

Q’ty/Pallet,

1×20’ft

1×40’GP

1×40’HQ

Pallet Q’ty

6pallets

14pallets

14pallets

Q’ty/Container

240pcs

560pcs

630pcs

Package

 

 

IMG_8917_

 

3_

FAQ

I. Will you focus on the safety of the goods during transportation?

Yes, Safety of the cargo is the primary element that we would consider on transportation.

II..How would guarantee the quality will meet the requirements of your clients?

Before shipment, we will have inspection for each batch of goods.

III..What certificates do you have?

IEC,UL,TUV,CSA,etc.

IV..Can you do OEM according to clients’ requirements?

Yes, we have our own brand while we can provide OEM service.


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Q:Are solar panels actually efficient?
It absolutly depends on where you live. I don't have enough wind in my area for a wind turbine to do any good. I just installed solar, the system will pay for itself in about 6 years. I didn't get a system that will zero out my electcity usage, but it will dramatically be decreased. I can always add to it in a few years. Since I plan on living here forever I will see a great financial benift.
Q:thermodynamic question that includes heating water with solar panels?
Here's a typical 4' x 8' collector rating. 40 degree latitude would be a cool climate, so you look at row D, water heating in a cool climate. Probably take the middle rating, mildly sunny day, and it is 0,000BTU per panel per day (it's 9,000 on a sunny day). 38,700 BTU / 0,000 BTU = 3.87, they'd need about 3 to 4 panels. If you used the sunny day number, you'd only need 2, but 3 is more realistic, as it is not always a sunny day.
Q:why aren't solar panels for your house more affordable?
Technology okorder.com Good luck!
Q:What is maximum system voltage in solar panel?
Contact the manufacturer of your panel(s) for the information you seek
Q:How efficient are the solar panels....?
Commercial monocrystalline panels are typically 8% efficient but inverters can be 65% to 90% efficient and lead acid batteries are 50% efficient at charging and 92% efficient at discharging plus they self-discharge at 3% to 20% per month.
Q:80 watt solar panel ? what dose that mean?
You okorder.com/
Q:How many Solar Panels for my Pool?
You okorder.com/
Q:Solar Panel info needed?
A 50-watt rating means the panel will produce 50 watts as long as the standard conditions are maintained. So if you had this bright sun and cool temperatures for 6 hours, the panel would deliver 50 x 6 = 900 watt hours, or a little shy of kilowatt-hour. Kilowatt-hours (kWh) is the reading on your electric bill. However, like most advertising, the 50-watt number is not realistic. They assume that the air surrounding the panel is very cold. 25 watts is a better number to use for this size of panel for engineering purposes.
Q:Solar panel questions...?
. Do they scratch easily? No How do I remove snow from them without scratching them? Just wipe the snow off 2. What does the upkeep of many solar panels consist of? Clean them with tap water and paper towels once a month. 3. Are all solar panels made from the same material, regardless of size? Basically the same.
Q:Do solar panels add to global warming?
Third Law of Thermodynamics (in normal speak): “Not only can you never get ahead, you can’t even break even.” This is a truism that applies to all activities involving energy exchange (and almost everything else as well). Energy in the form of solar radiation falls on the earth. That energy is absorbed by the planet (everything) and heat results. Some portion of that energy is lost in the absorption process and the net released as heat is less than that absorbed from the sun. This is true in all cases. Solar panels, both photovoltaic and heat collectors are subject to the Third Law and they all lose some of the radiant energy striking them in the process of converting that energy into either hot water (or whatever fluid) or electrical energy. Regardless of the process there is always a net loss of energy. The time delay you mention has no bearing on the total heat gain or loss for the planet. In fact the “solar panel effect” reduces the net energy put back into the ecosystem because it introduces another iteration of energy loss through conversion. The Holy Grail of energy conservation it the ability to use, store or recover the entire amount of energy produced regardless of the source of that energy, burning hydrocarbons, geothermal heat exchange, solar radiation, mice on treadmills …..all forms of energy suffer a net loss in any exchange! If we could avoid that loss we could dramatically reduce the heat lost into the atmosphere or ground water and our net energy gain would also be dramatic! Check out the super cooled circuits in use to reduce resistance in sophisticated electronic equipment for a good example of the energy savings. (Of course the savings do not account for energy lost in the cooling process. In any event NO….. solar panels do not contribute to global warming via their operation. (Their manufacture is another story altogether!)

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