280W Direct Factory Sale Price 260-300Watt Solar Panels

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China main port
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TT OR LC
Min Order Qty:
10000 watt
Supply Capability:
100000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 300 Number of Cells(pieces): 1

Product Description:

280W Direct Factory Sale Price 260-300Watt Solar Panels

280W Direct Factory Sale Price 260-300Watt Solar Panels

280W Direct Factory Sale Price 260-300Watt Solar Panels

Solar Module Introduction

Solar modules use light energy (photons) from the sun to generate electricity through the photovoltaic effect. The majority of modules use wafer-based crystalline silicon cells or thin-film cells based on cadmium telluride or silicon. The structural (load carrying) member of a module can either be the top layer or the back layer. Cells must also be protected from mechanical damage and moisture. Most solar modules are rigid, but semi-flexible ones are available, based on thin-film cells. These early solar modules were first used in space in 1958.

Electrical connections are made in series to achieve a desired output voltage and/or in parallel to provide a desired current capability. The conducting wires that take the current off the modules may contain silver, copper or other non-magnetic conductive transition metals. The cells must be connected electrically to one another and to the rest of the system. Externally, popular terrestrial usage photovoltaic modules use MC3 (older) or MC4 connectors to facilitate easy weatherproof connections to the rest of the system.

 

Specification

 

Model Type

Peak Power-Pmax(W)

5-200W

Open Circuit Voltage-Voc(V)

44.2

Maximum Power Voltage-Vmp(V)

36

Short Circuit Current-Isc(A)

5.4

Maximum Power  Current-Imp(A) 

5

Maximum System Voltage

1000V DC

Maximum Series Fuse Rating

10A

Power Tolerance

 -1~+3%

Temperature Coefficients of Pmax

 -0.45%/℃

Temperature Coefficients of Voc

 -0.348%/℃

Temperature Coefficients of Isc

0.031%/℃

Nominal Operating Cell Temperature

44.5±2℃

Standard Testing Condition(STC)

Irradiance:1000W/m²;Temperature:25℃;AM=1.5

Qualification Test Parameters

Operating Temperature

 -40℃~+85℃

Storage Temperature

 -40℃~+85℃

Pressure Bearing

≥5400Pascal/m²

Wind Bearing

≥5400Pascal/m²

Mechanical Characteristics

Cell Size

Mono 125*125mm±0.5

No.of Cells

72pcs(6*12)

Dimension

1580*808*40mm

Weight

15.5Kg

Glass

3.2mm High Transmission,Low Iron

Frame

Anodized Aluminum Alloy

Junction Box

IP65Rated

Internal Diodes

3 Bypass Diodes

Cable

1*4.0mm² Length 900mm

 

Images
 
Packing & Shipping:

 

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

The normal size is packed by 25pcs/ carton / pallet. Paper carton for FCL shipping and wood carton for LCL shipping.

 

Features

1.High reliability with guaranteed -3% to +5% power output tolerance, ensuring return on investment
2.High conversion efficiency based on leading innovative photovoltaic technologies
3.Withstands high wind-pressure and snow load, and extreme temperature variations
4.Attractive appearanceUnique frame design, high mechanical strength, and easy Installation

Warranty:

For c-Si panel: 25years output warranty for no less than 80% of performance, 10 years output warranty for no less than  90% of performance. Free from material and workmanship defects within 5 years.

For a-Si panel: 20 years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 2 years.

 

•100% product quality protection

•100% on-time shipment protection

•100% payment protection for your covered amount

FAQ:

1What price for each watt?

It depends on the quantity, delivery date and payment terms.

2What is your size for each module? Can you tell me the Parameter of your module?

We have different series of panels in different output, both c-Si and a-Si. Please take the specification sheet for your reference.

3Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?

Actually we are only manufacturer of solar panels, but we could try to source them for you in China if you need. We could provide you an optimal system design to instruct you how to install.

4Do you have the CE, TUV, UL Certification?

We’ve already passed all the tests, and any certificate is available.

5Have you ever sold your products to companies in my country?

Of course, we have customers in all general PV markets, but I think we should expand our market share along with the market growth.

6When did your company set up?  You are a new company, how can I believe your quality?

We entered into Solar PV industry in 2005, now we have several plants in manufacturing of a-Si and c-Si panels, and our capacity is 220MW per year. Till now we have already passed all the tests by authorized laboratories, e.g. TUV, VDE, UL.

7Can you help us install the module if we cooperate with you?

We haven’t entered into installation sector, but we have the plan in near future.

8) How do you pack your products?

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

 (9) Can you do OEM for us?

Yes, we can.

10Can we visit your factory?

Surely, I will arrange the trip basing on your business schedule.

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Q:What factors effect the amount of electricity produced from solar panels?
It depends on what you mean by amount of electricity. Normally that would mean the total energy produced over a given period. In that case, the main factors are ) Efficiency of the solar cells 2) Total irradiation received: incident radiation density times the solar panel area, and the angle of the incident radiation. Item ) is determined by the materials and method of construction of the solar cells Item 2) depends on the location of the panel, both on earth's surface (latitude), time of year, and how the panel is oriented with respect to the horizontal. Altitude of the location can also be a factor. Prevailing weather conditions, number of cloudy days, etc. are important. Independent of these parameters, larger area means more electricity.
Q:solar panel for pool pump?
You can buy a solar pool pump with all the equipment you'll need.
Q:Solar panels IRS refunds?
Not a good answer: CNBC had a news bit, that it can take 0 to 20 years for you to break even in energy costs after installing solar panels. Please don't buy them just for the tax deduction. See if you can google a calculator for this - do research. I have a brother in law that buys anything under the sun just because he gets a tax deduction. I'm sure you're not like that though. Run the numbers of what you will save vs the 2K you will spend You may never break even
Q:adding more solar panel & battery?
You can wire solar panels in parallel (i.e. positive to positive, negative to negative). Preferably, the panels should be similar to allow the output voltages to track. Otherwise, it may be necessary to include diodes in series with each panel so voltage variations do not have an adverse effect. The other alternative is to have the panels charging individual batteries and then combining the batteries through diodes before using the inverter. This approach would require separate charge controllers for each battery. Not quite as energy efficient as each diode causes a voltage drop (and so a power loss).
Q:Why don't scientists use the design of a tree for solar panels?
solar panels do not use generators, but i like your idea, very creative.though i don't see the practicality of this being used commercially, i think it would make a great solar promotional piece though! off-subject, it is time we stop looking at the upfront costs of things and start looking at what the long term costs are. most green-technology, although expensive at first, end up saving tons of resources and actually increase profits of businesses! studies show that people who work in a green building tend to be happier which benefits health, more excited to go to work due to the business's environmental ethics, are more productive because of natural lighting, and are more efficient because more work is getting done. green buildings can actually boost the efficiency of a business! thus saving tons of money and reducing tons of waste. Doesn't this just make sense to you?
Q:What is the difference between Photovoltaic Panels and Solar Panels?
Solar panels collect energy from the sun and then provide it to a system that typically concentrates it. Solar energy comes to us in the form of heat and light. Photovoltaic panels take the light energy from the sun and convert it to electricity. Although the maximum efficiency is around 42% in the lab most commercial models you will see are from 8 to 22% efficient. Adding collectors together concentrates this energy into usable amounts. Solar thermal panels are from 60 to 80% efficient. They come in many different types and collect the heat energy from the sun. That heat may then be stored in some form of thermal mass where it becomes concentrated sufficiently to be used. Solar thermal panels can be used to heat a medium. This can be a phase change material, air, or water. Solar thermal air panels are cheap to make and offer a quick pay back period. Solar thermal panels for some heating and hot water systems circulate water. Vacuum tube collectors are solar thermal panels that may heat water directly or a phase change materials. They can operate better in cloudy and colder weather with more efficiency. Air and water panels are often called flat panels as a way to contrast them with vacuum tube collectors. Solar thermal panels often lead to some form of energy storage called thermal mass (water tanks, phase change materials, masonry walls and rocks.) Photovoltaic panels make electricity that is stored in batteries, used or sent to the general grid. Panels are only one way to collect solar thermal energy. Other types of collectors are used commercially and are often called simply solar concentrators. Some are called parabolic trough collectors and parabolic dish collectors.
Q:How did Obamas funded solar panel plan flop and bunkrupt..where did those billions of dollars go?
Down the drain. That money is gone. Just more wasted money the government writes off and then tries to raise taxes to pay for.
Q:What do I need to do to run my dehumidifier from solar panels?
This Site Might Help You. RE: What do I need to do to run my dehumidifier from solar panels? First of all is it possible? I do not know how much electricity my dehumidifier but could someone give me an idea of how much this would cost to do? A link to a solar panel or equipment that would do the job would be nice too. Thanks in advance.
Q:Solar Panel Help Please!?
I will give you the tools to answer your own question. Here is the solar resource map: rredc.nrel.gov/solar/old_data/nsr... Use it to look up the hours of peak equivalent sunlight per day in your area. For example, let's say it's 5 hours / day. Then per year you get 365 x 5 = 825 hours of sun Your panel is 20 watts, or 0.2 kW So the energy produced per year is 825 x .2 = 383 kWh You'll have to use the proper numbers for your own area, of course. Anyway, you can take that 383 kWh and determine how much it would cost at local electric rates. Never know, on some islands, it's $.00 per kWh. Check with your local electric company for rates.
Q:How much do solar panels cost?
I don't know the square of your school. generally the solar panel is 0.6$ per watt. so if 5kilowatt can meet your demand the cost will be3000$.

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