• Sunpower High Efficiency Polycrystalline Solar Panel 305w Hot Selling System 1
  • Sunpower High Efficiency Polycrystalline Solar Panel 305w Hot Selling System 2
Sunpower High Efficiency Polycrystalline Solar Panel 305w Hot Selling

Sunpower High Efficiency Polycrystalline Solar Panel 305w Hot Selling

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
305 watt
Supply Capability:
200000000 watt/month

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1. Detailed Information


Type

CNBM Solar Polycrystalline Series II (305W)

Materials

Silicon

Size

Length

Width

Height

1956

992

50

Guarantee

12 yrs free from defects in materials and workmanship

No less than 90% within 10yrs and no less than 80%   within 25yrs

TUV(IEC61215&IEC61730), CE, UL

Application

 Photovoltaic/ solar/ green energy/ energy saving

Descriptions

1.High efficiency crystalline silicon solar   cell. Even if under the weak light, the solar module can produce maximum   power output.

2.Tempered glass (toughened glass):   Anti-reflecting coating and high transmission rate glass increase the power   output and mechanical strength of solar module.

3. EVA and TPT: Using high quality EVA and   TPT to prevent destroying and water.

4. AI frame: Without screw, rner   connection. 6 holes on the frame can be installed easily.

5. Junction box: Multi function junction   box with water proof.

6. Long lifetime: ≥25 years; Less power   decrease.

7. Good performance of preventing from   atrocious weather such as wind and hails.

8. Resisting moisture and etching   effectively, not effected by geology.

9. The certificate issued by international   authority: UL, TUV, IEC, CE.

 

Packaging   Details:

26pcs/pallet, 28pallets/   40HQ 

Our   solar panels are packed in cartons, and then pallet. 

Shipping by sea or by air are both ok, it up to customer’s chose.

We’d like to inquiry the freight cost for customer after be informed exact quantity and destination address.

2. Technology

Polycrystalline Solar Panel 305W Hot Selling High Efficiency

3.The picture of the products

Polycrystalline Solar Panel 305W Hot Selling High Efficiency

Polycrystalline Solar Panel 305W Hot Selling High Efficiency

Polycrystalline Solar Panel 305W Hot Selling High Efficiency

4.Packing Details
Polycrystalline Solar Panel 305W Hot Selling High Efficiency

5. FAQ:

We have organized several common questions for our clientsmay help you sincerely

1). What’s price per watt?

A: It’s depends on the quantity, delivery date and payment terms of the order. We can talk further about the detail price issue. Our products is high quality with lower price level.

2). Can you tell me the parameter of your solar panels?

We have different series of cells with different power output, both from c-si to a-si. Please take our specification sheet for your reference.

3). 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.

4).Can you do OEM for us?

Yes, we can.

Q: Can solar panels be used to power a hotel?
Yes, solar panels can be used to power a hotel. Solar energy can be harnessed through solar panels and converted into electricity to meet the power requirements of a hotel. This renewable energy source can help reduce the hotel's reliance on traditional electricity grids and lower its carbon footprint. Additionally, advances in solar technology have made it more efficient and cost-effective, making it a viable option for powering hotels.
Q: Hi, I have in my sailboat 2 2 V batteries. I would like to buy solar panel(s) in order to recharge them. As i am in mexico and there is always high sun . i think it is a good idea.Usage of the batteries is very light . I have found 5-2V pannels with 80mA that fit in the sailboat. I want to know if and how i can have like 5 to 0 of them set together to charge the batteries and what other material would i need.also, i would like to know what happend if the pannels only send on 5V in a 2 V battery? Is it still charging but on 40 % of the capacity a 2 v pannel would charge or its just not doing nothing ?
Taken at face value, it would take about 55 hours to re-charge a dead flat battery. However, you don't get 24hrs/day sunlight. Even worse, the output from a panel is only maximum when the sun is at 90 degrees to the surface. Let's assume you can find some way to track the sun. No battery should be allowed to discharge below about 50% so we can halve the recharge time. I would say about 4 days.
Q: I have made a 5v dc 52watt solar panel and I going to be trying to charger 4 2v dc 55ah batteries. I get about 6 hours of sun on my panel. Spec below, is that a big enough panel to charge the batteries???I have 30 3x6 solar cells wired together Cell Specifications: (Watts): .75 Wp (Amps): 3.5 Imax (Volts): 0.5 V max which is where I got my 5g 52watt max (if math is wrong plz tell me) The Battery type: 2Volt 55.0ah NB Sealed Lead Acid Battery. I am using a mppt solar charger.
OK your math on the solar panel looks correct, but you are missing some critical information. What is the load on your batteries and for how long is this load being applied. Calculate the amp-hour load to see if your solar panel can recharge your batteries with the amount of sun light available. A safe engineering standard is to have twice as much capability as required. If you have a 200 amp load for 7.5 minutes, this would be a 25 amp-hour discharge and will take your solar panel over 7 hours to recharge your batteries. Your solar panel can easily charge the batteries up to full capacity with out any load on the batteries, if the batteries are 50% discharged, this will take about 32 hours. CAUTION! I am assuming that you are hooking the batteries up in a parallel connection, that will give you over 200 amps of current. You should charge each battery up to full charge before you connect them together, if they are not at the same exact voltage when you connect them together, they will self adjust so that each battery is at the same voltage level, at 55 amps this could be a very large spark. Each cell, there are six (6) cells in a 2 volt battery, should be at 2.7 to 2.2 volts DC per cell at full charge. Make sure your battery has a voltage 3.02 to 3.26 volts open circuit or no load. This should be full charge if your batteries do not have this voltage level, say one battery is at 0 volts DC, it could have a dead or shorted cell. DO NOT use this battery until you can get it to hold a 3.02 to 3.26 volt DC level.
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 have shown that properties with solar panels tend to sell faster and at a higher price compared to homes without them. Potential buyers view solar panels as a valuable and eco-friendly feature, leading to increased buyer interest and willingness to pay a premium for a home equipped with solar power.
Q: Are there any safety concerns with solar panels?
There are a few safety concerns associated with solar panels, but they are relatively minimal and manageable. The main concerns include the risk of electrical shock during installation or maintenance if proper precautions aren't followed, fire hazards due to faulty wiring or improper installation, and potential damage from extreme weather conditions. However, with proper installation, regular maintenance, and adherence to safety guidelines, these risks can be significantly mitigated, ensuring the safe use of solar panels.
Q: I want to plug my solar system battery bank into my transfer switch on my cabin when not using a generator. The transfer switch will handle 220 volt from my generator. How do I get a 220 volt inverter that runs 60 hz or do all of them run 50 hz.I see plenty of 20 volt 60 hz. I'm at the point of needing to order one and I'm not sure.
Sun okorder
Q: Can solar panels be used in areas with high levels of wind-blown debris?
Yes, solar panels can be used in areas with high levels of wind-blown debris. However, it is important to ensure that the panels are properly installed and maintained to withstand the impact of debris. Regular cleaning and inspection may be required to prevent any obstruction or damage to the panels, ensuring their optimal performance.
Q: Do solar panels require a specific type of wiring or electrical setup?
Yes, solar panels require a specific type of wiring and electrical setup. They need to be connected in series or parallel configurations to form a solar array, and the wiring should be sized appropriately to handle the current produced by the panels. Additionally, an inverter is typically required to convert the DC power generated by the panels into AC power that can be used in homes or businesses. Proper grounding and safety measures must also be considered during installation.
Q: If you buy everything you need for a grid-tied solar set up, can you install it yourself or is it required that a professional installs it?
Solar panels have to be installed by a professional in order to get the government rebates. Also the systems must meet state and local electrical codes. Most modern inverters will not turn on unless there is live power from the MAINS, so a ultility company is NOT required for any installation anywhere. There are plenty of electrical contractors and speciality solar contractors out there to help you to make sure that the system is properly designed with the correct components, properly installed, and legally certified. Also many states require a permit that may have a large fee before any installation and may not allow the homeowner, especially for city homes, so it is best to check first. You might be able to get away with it if you live in the country, but consider the safety as well. See if you can work with your contractor to get the materials that you both agree upon as well. They can help guide you based upon their experience. Also shop around for pricing as the panels are now going below $ per watt !
Q: How do solar panels affect the roof's structure and integrity?
Solar panels can have a minimal impact on the roof's structure and integrity. When properly installed, solar panels do not pose a significant risk to the roof. However, it is important to ensure that the installation is done by professionals who follow industry standards and guidelines to avoid any potential issues such as leaks or damage to the roof. Additionally, the added weight of the panels should be considered, but modern mounting systems are designed to distribute the weight evenly, minimizing any strain on the roof.

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