Affordable 30-60w High Quality Poly Solar Panels - ODM
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 watt
- Supply Capability:
- 100000 watt/month
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Packaging & Delivery
Packaging Details: 25PCS/Pallet, carton box with wooden pallet or wooden box with pallet
Delivery Detail: 7-15 days according to the order quantity
Product Description
A Grade 250w high efficiency Poly PV Solar panels
Max Power Voltage Vmp(V) | 31.5 |
Max Power Current Lamp(A) | 7.94 |
Open Circuit Voltage Voc(V) | 37.5 |
Short Circuit Current Isc(A) | 8.72 |
Temperature Coefficients of Isc (%/℃) | 0.0825 |
Temperature Coefficients of Voc (%/℃) | -0.4049 |
Temperature Coefficients of Pmp (%/℃) | -0.4346 |
Max Power(w) | 250 |
We now provide
• Monocrystalline Solar Panel
• Polycrystalline Solar Panel( multicrystalline silicon Solar Panel)
Features of our products:
• High conversion efficiency mono/poly-crystalline amorphous silicon solar cells
• Modules incorporate high performance bypass diodes to minimize the power drop caused by shading
• High transmittance, low-iron tempered glass
• High performance EVA encapsulant to prevent destroying and water.
• AI frame: without screw, corner connection. 8 holes on the frame can be installed easily
• Good performance of preventing from atrocious weather such as wind and hails
Company Profile
China National Building Material (CNBM) Group Corporation
CNBM International Corporation is a professional solar panel manufacturer in China for CNBM brand . Silicon panel ( silicon module), as our main product, has high quality and good service. Our products are very popular in Europe, Australia, England, Middle East, Mexico, Argentina, Chili, Singapore and Africa.
Furthermore, our products have gained international authorized certificates like TUV, UL and CE.
China National Building Material (Group) Corporation (CNBM), established in 1984, is one of the largest State-owned group corporations of building & mechanical materials which specializes in the design, manufacturing and distribution of building materials in the world.
As the whole world turns “green”, CNBM enters into the Photovoltaic Industry in 2005.After 6 years' fast growth, now our annual capacity is 500MW solar panel and 500MW solar cell.
Advantages:
1.Solar Energy&green energy.
2. Easy to install, operate and maintain.
3. Ideal lighting products where normal electric is not convenient.
Our services:
1. Sample: Sample is available. Please send us email about your detail consignee information: name, address, zip code and tel. Then we will contact you and send samples to you.
2. Small order: We can accept small order for this product. Please let us know your order quantity.
3. Customize: We accept OEM service and can customize products as customers' design.
4. After-sales service: We will give customers active feedback within 24hours after receive any of customers' questions.
FAQ
We have organized several common questions for our clients，may help you sincerely：
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?
Yes, we can, we have two companies for solar region, one is CNBM International, the other is CNBM engineering Co.
We can provide you not only the solar module but also Solar Cells, the off grid solar system, we can also provide you service with on grid plant.
4What is your warranty system?
Our product performance guarantees for 25 years
• 12 years guarantee for workmanship
• Timeliness of delivery
• Quality Products certified (TÜV, UL, CE, ISO)
5.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.
6. Can you do OEM for us?
Yes, we can.
7.How long can we receive the product after purchase?
In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers. Commonly 7 to 10 working days can be served.
- Q: Can I add more solar panel let say up to 200 watt and adding two 2 volts battery using the same charges controller and power inverter?
- That charge controller is notoriously cheap and burns up easily. If you are going add solar panels, also buy another charge controller to go with them. They can both be connected to the same battery bank. I don't believe the kit comes with batteries, so you would buy whatever size 2V battery bank your power requirements call for. The size of the inverter depends entirely on what you are going to power with it, not the size of the panel array. As long as you are not powering anything that is over the 300W rating, you don't need a new one. Just be sure to check the details of the inverter, is it 300W continuous, or can it handle up to a 300W surge? Also, it's a modified sine wave inverter instead of a pure sine wave inverter, so don't plug any sensitive electronics into it. They may not work, or you may get a buzz or hum from it.
- Q: If a solar panel (using 36 3x6 solar cells) puts out 60 watts, how many panels would I need (for a house) if I use a max of 2300 kWh in a month? I checked my electric usage for the past 2 years and the kWh is usually lower but I wanted to use the most kWh used (2300) for my question. Thanks!
- Good question. Something to keep in mind is that modern solar electric works _alongside_ the grid, so you don't need to displace your entire 2300 kWh. The best financial return, if any, might come at a point where you generate only 500, 000, or 500 kWh per month. How many panels you need strongly depends on your location. Speaking for the location of my house in San Jose, Ca, that amount of usage would be about a 2 kW array, and if you divide 60 into that, you get 200 panels. In a perfect location, you would need slightly less, in a northern state, you might need double that. If this was a real project, you would probably not use 60-watt panels. The choice of panels is not simply a matter of getting enough watts. 2 kW is a large system today for residential. The usual advice is to go for energy efficiency first, then consider solar after the usage is down.
- Q: our school spends around $0,000 dollars on energy.we want to know how much money would installing solar panels on the roof save our school.
- What you are really looking for is ROI. Return on investment. If you spend 0K up front how long will it take to recoup that 0k. The answer is too long. Solar panels are not and never have been about saving money. They are about trying to save the planet. So if your school wants to go green then they should do it but the overall cost will be higher.
- Q: Can solar panels be installed on south-facing windows?
- Yes, solar panels can be installed on south-facing windows, as long as there is enough sunlight exposure throughout the day. South-facing windows tend to receive the most sunlight, making them a suitable location for solar panel installation. However, it is important to consider any potential obstructions or shading that may affect the panel's efficiency.
- Q: Can solar panels be used in areas with high temperatures?
- Yes, solar panels can be used in areas with high temperatures. In fact, solar panels are designed to withstand a wide range of temperatures, including high heat. While excessive heat may slightly reduce their efficiency, modern solar panels are equipped with cooling mechanisms that help maintain their performance even in hot climates.
- Q: So I want to go completely solar. Do I need the connected solar panels alone for after sundown hours; Do I need something else in order to have energy to run my entire house throughout the night?In other words do solar panels store the energy for after sun-down or do I need other devices to store the energy?
- You can energize your home with a solar panel system if it sized correctly and if you have sufficient space for the panels oriented in the correct position. The solar panels will not provide your power directly since most of the devices we use are AC. The system will include and inverter for conversion from DC to AC. It will also include batteries to store your daytime energy for your nighttime use. If considering a solar panel system look and the references below and don't forget to do a home energy audit first to minimize your electrical needs so you can invest in a smaller system. I would also recommend incorporating solar hot water heating system, separate from solar panels. This will also minimize the amount of solar panels you will need.
- Q: 3.8 volts is required to fully charge a battery. But at 3.8 volts, the battery can be overcharged without the use of a controller correct? What if I don't care if the battery is fully charged? In the case of our family boat, I just installed a new radio, so I'm a little worried about power consumption. So now for the real question; If I hook a 2 volt panel to the batteries, do I need to worry about overcharging them? Or will the batteries stop the charging process once they reach 2 volt?I built the panel myself, it's 8 volts at 3.5 amps open circuit. I have tabs at every 3 volt increment on the panel so that I can use less voltage than 8 if I want to power something directly, (ex:2 volt radio)So I'm using the 2 volt tab at 3.5 amps(approx) for a total of approx 48 watts
- I have been using solar panels for over ten years never until recently bothered to use a charge controller, it depends really on how much power your batteries can hold how often they will be drained from use of the connected dc-ac inverters. While constant daylight charging at 8v 3.5a/hr is quite heavy it is not excessive, 2v lead acid battery chargers give a voltage output of appx 4.8v but the fluctuating output of a solar panel means you may well charge at 8v for some time but with occasional shade etc it will more likely average at 5v which I think is quite acceptable.
- Q: How much energy can a solar panel produce in a day?
- The amount of energy a solar panel can produce in a day depends on various factors such as the size and efficiency of the panel, the location and angle of installation, weather conditions, and sunlight availability. On average, a typical solar panel can generate between 4 to 6 kilowatt-hours (kWh) of electricity per day. However, this can vary significantly, and larger, more efficient panels in optimal conditions can produce even more energy.
- Q: how to use a motor with solar panel
- photograph voltaic capability is somewhat fluctuating capability source and so it may be greater advantageous if u could save the photograph voltaic capability in a battery. The battery is then related to the motor. returned connect the motor with a zener diode to the photograph voltaic panel because of the fact if u dont u could have a case of decrease back emf producing from the motor and getting discharged interior the photograph voltaic panel that could injury it. further the battery additionally ought to be having a diode circuit which might avert it style discharging into the photograph voltaic panel. hoping that this facilitates..
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Affordable 30-60w High Quality Poly Solar Panels - ODM
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 watt
- Supply Capability:
- 100000 watt/month
OKorder Service Pledge
OKorder Financial Service
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