• 250W Direct Factory Sale Price 240-260Watt Solar Panels System 1
  • 250W Direct Factory Sale Price 240-260Watt Solar Panels System 2
  • 250W Direct Factory Sale Price 240-260Watt Solar Panels System 3
250W Direct Factory Sale Price 240-260Watt Solar Panels

250W Direct Factory Sale Price 240-260Watt Solar Panels

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Loading Port:
China main port
Payment Terms:
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

250W Direct Factory Sale Price 240-260Watt Solar Panels

250W Direct Factory Sale Price 240-260Watt Solar Panels

250W Direct Factory Sale Price 240-260Watt 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.

Q:Can solar panels be used to power a concert venue?
Yes, solar panels can be used to power a concert venue. By installing a sufficient number of solar panels, a concert venue can generate enough renewable energy to meet its power needs. This helps reduce the reliance on traditional energy sources, lowers carbon emissions, and promotes sustainability in the music industry.
Q:Do solar panels require direct sunlight to generate electricity?
Yes, solar panels do require direct sunlight to generate electricity. While they can still generate some electricity on cloudy days or in indirect sunlight, their efficiency is significantly reduced without direct sunlight.
Q:I don't see much solar panels on people's houses where I live. I got a long time to go before doing so but I was planning on buying a few solar panels when I retire in the far future. In your opinion, is such an investment worth it? Would you buy them? I realize they are very expensive hence why I said when I retire. Thanks for your opinion
You ask a great question, because this should really be a financial decision, and not only an environmental one. Depending on which state you live in, the payback on a system is often in the 5 to 2 year range. The great thing about solar panels is that the fuel source is free and you don't need to speculate on your future costs. You pay for the equipment up front, and then you just enjoy the free power. Most solar panel systems last at least 30 years, so compare the cost of solar panels to paying your average electric bill 360 times. And that does not include any inflation of energy cost increase. Check out our website to learn more.
Q:I have this question for extracredit and I dont get it?How many 2V,2W PV panels would be required to supply a load that requires a 48-volt supply that can push at least 2.8 amps of current, if you assume each panel puts out A at 2 V? And how are the panels configured to supply the power requirements of the load?
i agree with Liz but have a diffrent point i think u have not calculated for the roof mounted solar panels i am giving youy a bsic understanding hope that will help you Roof Mounted solar power systems consist of solar panels held in place by racks or frames which are attached to roof based mounting supports. Roof based mounting supports include: Pole mounts which are attached directly to the roof structure and may use additional rails for attaching the panel racking or frames. Ballasted footing mounts such as concrete or steel bases that use weight to secure the panel system in position and do not require through penetration. This mounting method allows for decommisison or relocation of solar panel systems with no impact on the roof structure.
Q:Hi there. I live in Colorado, and we obviously get a ton of snow there. I im looking into a solar power system for my home, and I am wondering if the snow will accumulate on the panels, or if, because of the energy passing through, it will melt on contact? By the way we get about 20' of snow each year, and it comes on often. I will also be putting them on my roof. Thanks for your help.
Good news and not so good news. You need to be able to access the panels to clean the snow off. There is not any heat generated other than the heat of the sun hitting the black colour - which would amount to some melting ability during a sunny day - but it isn't sunny when it snows! Apparently, solar panels work better in the cold and where snow can reflect light so to increase the amount of light - photons - hitting the panel.
Q:If my school uses 88240kWh of electricity per month and I have 000 50W solar panels running for 6 hours a day, does it mean it will take 88240kWh / {{[(50W x 3600s)*000]/000}kWh x 6} number of hours to generate that much electricity (88240kWh)?
running six hours a day doesn't mean much. You need to look at the solar insulation charts for your school's geographical location to come up with a better factor. The easiest number for you to use is sun hours. For example, Washington DC averages 4.23 hours. Do a Yahoo search for sun hours and you should find lots of charts. Solar panels rated at 50W give this output at full sun near noon at full brightness (no clouds). The sun hour factor makes it easy to find the equivalent number of full brightness hours. So, using Washington DC as an example you have: 000 panels * 50W * 4.23 sunhours/day = 634kWh a day on average. You state your school uses 88240kWh/month which is 6274kWh a day. This would mean you need ten times more solar panels since there is no way to get more daylight. Be careful to put in all the units in your formula and cancel them out to make sure you don't end up with a nonsense result. The title of the question would be answered as followed: 50W/000 * 4.23 sunhours/day = 0.63kWh/day or 9kWh per month or 228kWh a year. These are annual averages. If you wanted a specific month, you would need the sun hours for that month. Hope this helps.
Q:I was trying to figure out if I could run an electric heater off of a solar panel, but I don't understand these electric convertion factors and stuff. Would it work? (I know it'll only work in the daytime and stuff.)SOLAR PANELPeak Power 95W PTC Watts 73.0WVoc 30.7VPeak Voltage 24.4VIsc 8.6APeak Current 7.96A HEATERInput: 20 V/60 Hz ,500 W/5,200 BTU
No, not enough power. Energetic got some of it. A transformer will not convert DC to AC. Transformers work on AC. A power inverter converts. Your solar panels do only put out the 95W but at the higher impedence of the heater, at 24V it would only be able to push through about 45W. Less than an average light bulb in a desk lamp.
Q:The ancients used skylights for light in lieu of electricity. Light was used for drying, even cooking foods and drying clothes. Solar clocks/sun dials were once popular but now we have battery operated clocks. Where have we tapped into any of these resources since the outdated solar clothes drier nicknamed the 'clothes line'?
For simple starters, look to the gigantic strides technology has made due to the science of the laser. Its light power at its most extreme.
Q:Can solar panels be used in hot climates?
Yes, solar panels can be used in hot climates. In fact, solar panels are more efficient in hot climates as they thrive in high temperatures. However, it's important to ensure proper installation and maintenance to prevent overheating and maximize their performance.
Q:We are thinking about useing solar panels for our house.Does anyone know about solar panels? If so could you please tell me some information on them,and the cost for a home,to install them.
Solar electricity systems can save you more money. Want to know more features about Solar Panels Companies? Contact us today for more details.

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