• 270W Direct Factory Sale Price 260-300Watt Solar Panels System 1
  • 270W Direct Factory Sale Price 260-300Watt Solar Panels System 2
  • 270W Direct Factory Sale Price 260-300Watt Solar Panels System 3
270W Direct Factory Sale Price 260-300Watt Solar Panels

270W Direct Factory Sale Price 260-300Watt 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

270W Direct Factory Sale Price 260-300Watt Solar Panels

270W Direct Factory Sale Price 260-300Watt Solar Panels

270W 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.

Q:How do solar panels withstand harsh weather conditions?
Solar panels are designed to withstand harsh weather conditions through their durable construction materials and protective features. The panels are made with tempered glass that can handle hail, heavy rain, and snow without getting damaged. The frames are typically made of strong aluminum or stainless steel to provide stability and resistance against strong winds. Additionally, advanced solar panels have built-in drainage systems to prevent water accumulation and snow shedding technology to remove snow buildup. These design elements enable solar panels to endure and continue generating electricity even under challenging weather conditions.
Q:Hoping to find instruction, materials list and hardware needed to construct solar panels myself, how many and make it happen instead of talking about it
Silica based solar cells are not the kind of thing you whomp up in you basement. Here are a couple ideas for solar systems you can build and install yourself. Take a 4 x 8 sheet of /2 inch plywood. Frame sides with 2 x 4's. Screw tin cans in a staggered row (checker board) pattern inside frame. The more cans the more heat you get so place them nearly touching. Paint cans and entire assembly flat black. Cover top with glass, plexiglass (best) or heavy mill clear plastic (cheapest)Place on roof. Drill 3-4 inch holes in opposing sides. Run pipe or tubing into house. Attach to small low speed fan. The black paint will absorb sunlight and heat. The air moving through box will carry heat into house. It's a cheap efficient way to help heat your home. You can vary size and shape of box to fit your roof. If you use more than one box, hook them up in series. More boxes mean more surface area means more heat. To heat water. Take a steel tank. A car gas tank works well. It is galvanized so it won't rust, is cheap, and easily available at any auto salvage yard. But you will have to flush in throughly to remove gasoline odor. A steel 55 gallon drum is easier to work with but may cost more. Paint exterior of tank flat black. Weld/glue/clamp water pipes to tank. Place on ground in area that gets lots of sunlight. Attach water supply to tank and route discharge pipe to house or appliance. Black painted steel absorbs heat from sun light and heats water. In spring and fall you get warm to hot water. In summer you get scalding hot water and in winter you get cold to luke warm water. Both of these solar powered systems are seasonal and their output varies according to location and climate, but they are very inexpensive and easy to build and provide FREE heat and/or hot water for many years with little or no maintainence.
Q:Can solar panels be used in cold climates?
Yes, solar panels can be used in cold climates. In fact, cold temperatures can actually improve the efficiency of solar panels by allowing electrons to flow more easily. However, it is important to ensure that the panels are properly installed and maintained to withstand extreme weather conditions and snow accumulation.
Q:I recently got into solar panels, I have little background in electronics but I have done a little electrical work in the past and just want to make a small 36 cell panel to power a 2v battery that would run my a small tv (9 inch) and PS3 for a few hours every night. I have been looking up on how to do it before I get in over my head and I have a few questions.... After you solder all of the cells together then what? Do you hook all of the rows of cells together somehow? Can you connect them straight to a battery? After you hook to the battery do you hook up a power inverter to get the 2 AC plugs that would be needed? Thanks in advance for any help....
You will have to wire them in such a way that provides the battery with the optimal voltage for it to charge, which on a car 2v battery is around 4v. You said you have some background in electronics so this shouldnt be too difficult. You can connect them straight to the battery yes. Like you said, I believe a power inverter from 2VDC to 0VAC would work just fine. PS3 pulls a lot lot lot of current though so it probably wouldnt last too long. Look up the specs for PS3 and see how many amps it is pulling and purchase your inverter based off of that. I remember trying to run an xbox in my car one time and the inverter I had didnt work because of that. Be careful working with batteries, I had one explode in my face about a month ago.. scariest moment of my life! Good luck!
Q:How much energy can a solar panel generate?
The amount of energy a solar panel can generate depends on several factors, including the size and efficiency of the panel, the amount of sunlight it receives, and the geographical location. On average, a standard residential solar panel can generate between 250 to 400 watts of power per hour, or around 2 to 4 kilowatt-hours per day. However, larger commercial or utility-scale solar panels can generate much higher amounts of energy, ranging from several kilowatts to several megawatts.
Q:Do solar panels require direct sunlight to work?
No, solar panels do not require direct sunlight to work. They can still generate electricity from indirect sunlight or even on cloudy days.
Q:Can solar panels be used in areas with high levels of windstorms?
Yes, solar panels can be used in areas with high levels of windstorms. However, it is important to ensure that the solar panel installation is done properly to withstand strong winds. Reinforcements and proper anchoring techniques can be employed to ensure the panels remain secure during windstorms. Additionally, selecting durable and high-quality panels designed to withstand extreme weather conditions can further enhance their suitability for such areas.
Q:How do solar panels affect the resale value of a home?
Solar panels can have a positive impact on the resale value of a home. Studies suggest that homes with solar panels tend to sell faster and at a higher price compared to similar homes without solar installations. Buyers appreciate the potential energy savings and environmental benefits associated with solar panels, making them a desirable feature in today's real estate market.
Q:Can solar panels be installed on sloped roofs?
Yes, solar panels can be installed on sloped roofs. In fact, sloped roofs are one of the most common locations for solar panel installation. The angle and direction of the roof can affect the efficiency of the panels, but with proper installation techniques, it is possible to maximize their energy generation potential on sloped roofs.
Q:Can solar panels be used to power a train?
Yes, solar panels can be used to power a train. Solar panels can convert sunlight into electricity, which can then be used to power various electrical systems on a train, including propulsion. However, the feasibility and effectiveness of using solar panels to power a train depend on factors such as the size and efficiency of the solar panels, train energy requirements, and the availability of sunlight.

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