310W Direct Factory Sale Price 260-320Watt Solar Panels

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China main port
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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:

310W Direct Factory Sale Price 260-320Watt Solar Panels

310W Direct Factory Sale Price 260-320Watt Solar Panels

310W Direct Factory Sale Price 260-320Watt 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:solar panels and hurricanes?
depends on what light bulbs you have in watts.depends on how many you want on. for the power equation you take P which equals watts x I which equals amps and E which equals volts and you multiply the amps and the volts together to get the watts which the solar panel is generating. for example if you had 7 60 watt light bulbs you would need 420 watts generated. which if you got 50 watt panels each you would need 9 panels. and for what your talking about if you want the stuff to work when the power goes out you are going to need an inverter. not to be confused with a grid ti inverter. and a few batteries i recommend deep cycle batteries that are meant for solar panels. depends on what fan you have.
Q:How do home solar panels integrate into a houses current electricity?
The batteries are inefficient and expensive. Lead acid batteries are 95% efficient at discharging but only 50% efficient at charging so you need double your power consumption in solar panels for a battery based system. The big breakthrough was in grid tied inverters, these can be connected to the grid and synchronizes it's frequency to the grid thereby selling the solar power to the grid. The house electric system remains on the grid so you buy back the power when you need it effectively turning the grid into a 00% efficient battery by accounting. This saves you the cost of the batteries and the inefficiencies of the batteries halving the number of panels that you need. Grid tied solar can be a third the price of a comparable battery based system. The utilities will usually still have a service fee and may have limitations such as you can only sell the amount of power that you use and the sale can only be credits versus future energy purchases. There will also be the inefficiencies of the grid tied inverter but it would be at full load which is when it is the most efficient often 95% whereas the partial load use of a battery based system operates the inverter at an average of 65% efficiency which is why DC appliances are highly recommended for a battery based system.
Q:How much electrical energy is generated from one acre of solar panels?
There okorder.com/ Why pay thousands of dollars for solar energy ($27,000 average cost) when you can build your own solar panel system for just a fraction of the retail cost. You can build a single solar panel or you can build an entire array of panels to power your whole house. Some people are saving 50% on their power bill, some people are reducing their bill to nothing. But what’s most impressive is that just by following these instructions some are even making the power company pay them!
Q:Solar Panel Charging?
With a 2 volt power source (solar panel, battery charger, vehicle charging system, etc...) you can charge three 2 volt batteries in parallel circuits then switch to a series circuit through a series/parallel switch to get 36 volts output. I've done this with my electric scooter so I can charge it with my pickup through the lighter socket when I'm away from home. It works great! When at home I just leave the switch in the 36 volt position, plug the charger in the wall receptacle and the charger puts out 36 volts. Actually 2 volt lead acid batteries have 2.6 volts when fully charged so the charging source has an output of 3.6 to 4.2 volts to effect a complete charge. In the series circuit the fully charged batteries would put out 37.8 volts so the charger would have an output of 40.8 to 42.6 volts.
Q:What solar panels are the most efficient?
About 20-22 percent is about right for panels affordable by most consumers. Even then, you still only get enough power to light a couple of lights for $400-$500, and only works when the sun is shining.
Q:Where are the best places to put solar panels?
Photovoltaic panels are designed to be put on a roof, exposed (obviously) to sun, but also rain, snow, and wind. Generally, there is even a rating for something like hail. A good mounting system will be stronger than the underlying roof, so will withstand most anything short of a direct hit by a tornado or hurricane. There are a few panels from the 70's (that's the 970's) still in operation, I believe. They look horrible, but are still producing a little electricity. Since then, housings have improved, and panels generally have a 25-year warranty today (some cheap ones are 20-year warranty).
Q:solar panel webcam?
Q:Solar panel battery help?
I okorder.com and they have deep cycle batteries exclusively made for solar panels. but in theory you should get more than one because it only takes around 4-5 volts to charge the battery and you do not want to have it that high even with a charge controller which i would also recommend getting which is like $50 on OKorder but a charge controller is used so you do not overcharge the batteries and fry them or undercharge the batteries and weaken its life it gets it just perfect. it lets the current go in and when it is charged fully nothing goes in an nothing comes out.... for a inverter the one i was going to get was $70 500 watt inverter but changes it from dc to ac...hope i helped
Q:Do they make solar panels like this?
Are you looking for the best and Affordable Solar Panels? Find and compare brands of Solar Panels for home power systems. Contact us today for more details.
Q:Is heat a factor in how much energy is gained when using solar panels?
Homemade okorder.com/

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