Latest High Efficiency Poly Solar Module 390W for Power Plant

Latest High Efficiency Poly Solar Module 390W for Power Plant System 1

Latest High Efficiency Poly Solar Module 390W for Power Plant

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Loading Port:: Guangzhou

Payment Terms:: TT OR LC

Min Order Qty:: 1000 watt

Supply Capability:: 10000 watt/month

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Quick Details

Place of Origin:	China (Mainland)	Brand Name:	JS Solar	Model Number:	60cells 156mm poly
Specification:	Normal	Application:	Commercial	Output Voltage (V):	35V
Load Power (W):	250W	Solar Power (W):	250W	Work Time (h):	8 hours
Crystalline:	poly solar panel

Packaging & Delivery

Packaging Details:	carton box and pallets
Delivery Detail:	3 working days

Specifications

25 years warranty
Class-A Grade quality
EL test of each panel
Produced under automatic machines which bought from Germany

High Effiency Poly Solar Module 390W for Power Plant

Advantages

Reason:

We enjoy exclusive channel to get stock solar panels at more competitive price from Trina,Hanwha,Yingli,LDK,Suntech etc.

These panels are from tier 1 solar panel manufacturers,such as Trina,Hanwha,Yingli,LDK.They are assembled with all grade A materials,only problem is that they has slight appearance defect,but due to their strict quality control,even the negligible defect will lower its grade.so they put these panels into stock.

Quality

These panels adopt all grade A materials,such as solar cell,EVA, back sheet, junction box, glass,frame,connector etc.

They have same electrical performance with grade A solar panels,only difference is the negligible superficial defect.

Our Service

Pre sale:

1.Our sales representative and engineer work together to answer your questions and offer solution for free

2.We choose the best product for you to make sure it worth its real value

3.We design the best solution with good perfomance for you,manwhile save every cent of your money.

After sale:

We provide 10 years Warranty for the product, 12 years warranty for 90% power production ,25 years warranty for 80% power production.

Q: i check the diodes in the backside of solar panels it reads out to be 0.433 each give me the same result but i was amazed when i check out the last two one which on clamp meter screen give me ''0L'' what this means? is that diode have malfunctions??is this reasons that the output of solar has been decreased?: First of all, make sure that you are taking readings in the dark (with the solar panel indoors and covered). 0.433 is a reasonable forward voltage for a Schottky diode. Ideally, it diode should read open one way (possibly OL for your meter), and 0.4 the other way. If it's reading OL both ways, the diode is bad. You can either unsolder it or cut it out and verify that it is bad.

Q: when we say a solar panel has 20% efficiency, do we mean that it converts 20% of sunlight reaching it into electricity or that it converts 20% of visible light(which is only 7% of sunlight) into electricity?: That portion of the sun's light to which it responds, of which it converts 20% to electricity.

Q: Can solar panels be installed on schools or universities?: Yes, solar panels can be installed on schools or universities. In fact, many educational institutions around the world are increasingly adopting solar energy systems to reduce their carbon footprint, lower energy costs, and provide hands-on learning opportunities for students about renewable energy. Installing solar panels on schools and universities can not only help them become more sustainable but also serve as a powerful educational tool for students and the broader community.

Q: How much space do I need for solar panels?: The amount of space required for solar panels depends on various factors such as the size and type of panels, the efficiency of the panels, and the energy needs of your household or facility. On average, a 1 kW solar panel system typically requires around 100 square feet of space. However, it is best to consult with a solar installer or expert who can assess your specific requirements and provide accurate information regarding the space needed for solar panels.

Q: What is the impact of roof age on solar panels' efficiency?: The age of a roof can have a significant impact on the efficiency of solar panels. An older roof may have deteriorated shingles or structural issues that can affect the installation and performance of solar panels. Additionally, an older roof may require repair or replacement in the near future, which would require removing and reinstalling the solar panels, incurring additional costs and potential damage. Therefore, it is important to ensure that the roof is in good condition before installing solar panels to maximize their efficiency and longevity.

Q: Was at home depot today and a Solar City sales man came up to me, offering me free solar panels. He said he could install them on my garage for free, free installation, free panels. Promised me it wouldn't cost me a dime. This is obviously appealing to someone like me who has a $200.00 monthly electrical bill. Now my question is this. Is this a scam? Are there ANY hidden fees or things I should be weary of?- I understand I may not save tons of money, but if I can save even something as low as $20 a month I would be happy. I live in a sunny area and they seem very interested in my garage roof. Any information would be super-helpful, thank you.: Build okorder /

Q: Can solar panels be used to power a drone?: Yes, solar panels can be used to power a drone. By harnessing sunlight, the solar panels can convert the energy into electrical power that can be used to charge the drone's batteries or directly power its motors. This enables drones to have longer flight times and potentially operate in remote areas without the need for frequent battery replacements. However, the practicality and effectiveness of solar-powered drones may depend on factors such as the size and efficiency of the solar panels, weather conditions, and the power requirements of the drone.

Q: I have four power packs for solar lights. They have 3 AA .2volt batteries of 2450 mAh capacity installed in series for a total supply voltage of 4 volt maximum for the lights. I want to charge all four packs at once off a single 6 volt solar panel. With the four packs wired in parallel, what capacity output (wattage) panel do I need to charge the batteries in an 8 hour day?: 3 cells in series makes a 3.6volt 2.4AH battery. You multiply the volts but not the capacity. In parallel would be .2volts, triple capacity. So 4 packs in parallel is 9.8AH. Rule of thumb for charging a flat battery is divide capacity by 0 for amps and charge for 5 hours. amp at 6 volts is doable, that would be 6 watts People who make batteries and solar cells usually over-rate them so I doubt that a solar panel of less than 20 watts rating will fully charge these batteries if they are flat. I'd google to see how you might control the charge current with a simple circuit.

Q: how many solar panels in a grid tied system would it take to take see a difference in your power bill?: Typical solar panels used on household systems generate between 00 and 50 watts each. You might get the equivalent of five hours of sunshine per day on the average. 500 to 750 watt hours per day would be the average output. Where I live that would save only about six to nine cents per day. Learn more about photovoltaic solar systems by searching for solar panels on the Internet, and in the green search box above on this page.

Q: Can solar panels be used for powering a hotel or hospitality establishment?: Yes, solar panels can definitely be used for powering a hotel or hospitality establishment. Solar energy is a clean and sustainable source of power, and installing solar panels can significantly reduce energy costs for the establishment. Additionally, hotels often have large rooftops or open spaces that are suitable for installing solar panels, making it a practical and efficient solution for meeting their energy needs.

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