30W 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:

30W Direct Factory Sale Price 260-300Watt Solar Panels

30W Direct Factory Sale Price 260-300Watt Solar Panels

30W 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:Do you need to pay for electricity if you have solar panels?
well see a house can totally depend on solar energy (solar panels) but u will still have to pay the electricity bill because if the solar panels dont work u will have a back up,eg like in winters when it snows , it can cover the solar panels or during the winter seson when it is cloudy or snowing the sunlight can not reach the solar panels because of which they can not charge. but on the other hand because of the solar panels the bills will be decresed and u will have to pay only a small amount. I HOPE I WAS HELP FULL
Q:Questions about Solar Panels and Battery back ups.?
Q:How many solar panels do you need to power a house?
Depends on the size of the house and the average number of sunny days in your location, and how careful you are with your usage. Many houses too have solar panels that only provide part of the electricity needed. A medium sized house in a sunny climate might need a 4.0 kW system, which could mean6 x 250W solar panels,a roof area of 27 sq meters.The average energy use in a sunny country like Australia is 20 kW of electricity a day. To catch that much electricity on your roof you need a 4.0 kW system. In Australia you can buy reasonable quality systems for about $2 a watt (factoring in federal government rebates). This means a 4.0 kW system might cost $8,500. This is not cheap, so it makes sense to cut down your energy use first. :)
Q:Benefits of Solar Panels?
The solar panels that we all simply would think are the greatest thing ever are very, very expensive and require strip mining of huge areas of land to make. For several million dollars you can buy what usually is mounted as power source for space satellites upon your roof. This 2'x2' panel and a barrage of battery storage takes care of all the electrical needs you could ever have at home. But this profoundly environmentally destructive technology is not what you had in mind, I'm sure, but is what has been around for quite some time now. It's been a challenge to make solar panels without using complex chains of excited rare metallurgies, but we seem to be getting better and better at it--but I trust others should help you with the practical, now that you know the best panels are not best for us at home.
Q:Solar Power...........?
Many solar panels wired in parallel, 2 volt solar regulator, 2 volt battery e.g. 30 Ah, 240 volt inverter, autotransformer that can go down to 50 volts. There are many parameter to the electric motor missing. AC or DC, current needs for full load. How many watts the motor uses and the number of hours required will influence the solar panel, regulator and inverter specifications.
Q:What equation would i need to determine the raise in temperature of water going through a thermal solar panel?
If you only use it for demonstrational . 75W-00W small solar panels would be that you are looking for, you can use it heat up the water. With simple guide you can do it yourself easily and cheaply.
Q:highest known watt output for solar panels?
Those two requests are somewhat at odds with each other. Trina and Suntech make panels that are generally good value. You can search the web and find your best price. If this is for something that does not need to last long, you could get amorphous panels and save some money. But they will degrade quickly in a few months, then slowly over a few years.
Q:Do solar panels effect birds and/or other animals?
My solar panels have provided a home for birds, they nest under them. I don't think we should worry about the glare of a solar panel when it is placed on a building that eliminated the habitat that used to be there. Glare is such a minor issue compared to eliminating food and shelter for many animals.
Q:How much candle lights is required to operate a 205 watt solar panel?
The intensity of direct sun is about 0,000 foot-candles. It would not be practical to light that many standard candles and put them foot away from the panel, but you could supply that intensity with electric lighting. That's in fact how they establish the power ratings of a given panel; they have a rig that provides a standard test condition of sun.
Q:Were solar panels made by copying how plants collect sunlight?
No, although they both use the capture of energy from electrons excited to a higher state by sunlight, plants use enzymes (mostly chlorophyll) packed in chloroplasts; solar panels still largely use silicon. There are some companies exploring the use of a plant enzyme-based process since it's so much more efficient. The farthest they've gotten is using organic nanocrystal pigments instead of silicon crystals.

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