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

310W Direct Factory Sale Price 260-320Watt Solar Panels System 1

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

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 10000 watt

Supply Capability:: 100000 watt/month

Inquire Now

Chat Online

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

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	158080840mm
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:

（1）What price for each watt?

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

（2）What 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.

（3）Can 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.

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

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

（5）Have 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.

（6）When 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.

（7）Can 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.

（10）Can we visit your factory?

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

Q:Can solar panels be installed on remote or off-grid locations?: Yes, solar panels can be installed on remote or off-grid locations. In fact, they are particularly suitable for such locations as they do not require a connection to the traditional power grid. Solar panels can generate electricity by harnessing sunlight, making them a reliable and sustainable energy source for remote areas.

Q:Can solar panels be used on a backpack or portable device?: Yes, solar panels can be used on a backpack or portable device. These panels are typically lightweight and flexible, making them suitable for integrating into various portable devices. They can capture sunlight and convert it into electrical energy to power or recharge these devices while on the go.

Q:Can solar panels be installed on train stations?: Yes, solar panels can be installed on train stations. In fact, many train stations around the world are adopting solar energy systems to power their operations and reduce their carbon footprint. Solar panels are installed on the roofs or canopies of train stations to harness sunlight and generate electricity, which can be used for lighting, heating, cooling, and other station facilities. This renewable energy source makes train stations more sustainable and helps in the transition towards a greener transportation system.

Q:What would it take to make a heater for a small solar panel. I am looking into making a heater for a livestock tank to keep ice melted. I know that heaters take alot of energy to run, but my theory is that if heated mirrors on a car can melt ice with low voltage and im sure not extreme heat (40-60 degrees) then making a heater with just high enough temperature to keep from icing over and melting ice is possible. Where do I start? I would like to use an inexpensive solar panel that will generate enough heat to keep ice from forming and melt it at the beginning of the day. How can you make such a heater and apply Ohms law so that it will function correctly, what Wattage will the pannel need to produce to generate enough heat for the heater. The device will only have to be large enough to melt a spot large enough for an animal to drink.: Short answer is yes. Good to start out a large tank, or big rock to mount your collectors on. Something the stock won't eat or push over. I would start with a swimming pool solar collector. It is just a big piece of black plastic aimed at the winter sun. A collector with insulation and covers will give more heat per sq foot and cost more. Big mirrors and a black painted stock tank might be enough. Insulation of the tank might help a lot. Is the water liquid when pumped up the tank? Do you truck the water in? Is there any electric power wired there or near by? Electric solar collectors can pump and heat water and charge batteries, but it is also possible to circulate water using a thermosyphon set up. You don't have to use photocells. If it gets cold enough some collectors can freeze solid and damage themselves. There are collectors that contain two loops one water the other antifreeze.

Q:Can solar panels be installed on historic homes or buildings?: Yes, solar panels can be installed on historic homes or buildings. However, it is important to consider the specific regulations and guidelines set by local historic preservation boards or authorities. In many cases, there are alternative installation methods available that minimize any visual impact on the historic aesthetics of the building. It is advisable to consult with experts in historic preservation and solar installation to ensure compliance with any necessary requirements.

Q:want to run 400 watt heater 8 hrs a day how many solar panels do i need and batteries: You could do that, but it would be an expensive way to go. If what you really want is heat, consider heating water directly with conventional solar water heaters, and storing it in a large, insulated tank. You can then circulate the water through a conventional radiator at night.

Q:is a wind turbine better than solar panels: is your place has enough wind or sunshine ? the turbine is not easily for maintenance. the solar panel is more stable, one broken panel willl not affect the whole system much

Q:How much roof space is needed for solar panels?: The amount of roof space needed for solar panels depends on several factors, such as the size and efficiency of the panels, the energy needs of the household or building, and the available sunlight in the area. Generally, it is recommended to have around 100 to 400 square feet of unshaded roof space per kilowatt of installed solar panels. It is best to consult with a solar professional to determine the exact roof space requirements for your specific situation.

Q:Can solar panels be used in disaster relief efforts?: Yes, solar panels can be used in disaster relief efforts. Solar panels provide a reliable and sustainable source of electricity, which is crucial during times of disaster when traditional power grids may be disrupted. They can be used to power essential equipment, lighting, and communication systems in disaster-stricken areas, enabling emergency response efforts, medical services, and providing support to affected communities. Additionally, solar panels can be easily transported and set up in temporary shelters or mobile units, making them an efficient and versatile solution for disaster relief operations.

Q:I want to be more green and if I get the panels will I still have a regular electric bill?: The most cost-effective solution, which the vast majority of new installs use today, is solar alongside the regular power company. That way, you need no batteries, and if the solar array isn't producing enough at any given time, you draw from the electric company. When the array is producing more than you need, instead of just throwing that power away, the power company buys it (usually). In short, yes, you will still have an electric bill, but a smaller one. On our house, the electric bill was a little less than $5 a month, with an end-of-year settlement of an additional $2. How much does it cost? Unfortunately, that's like asking how much personal transportation costs. Some people need a van to transport the kids to soccer, some may get by with a motorcycle, others may need only a bicycle. The best thing is to contact a professional installer to get a quote based on your location and electrical usage. Solar electric does not make financial sense in all areas. Our array cost $2,000 but don't use that as a guide. Yours might be 0 times that, or half that, depending on your area and needs.

1. Manufacturer Overview
Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range