• 250W Mono Solar Panel Made in China for Sale System 1
  • 250W Mono Solar Panel Made in China for Sale System 2
  • 250W Mono Solar Panel Made in China for Sale System 3
250W Mono Solar Panel Made in China for Sale

250W Mono Solar Panel Made in China for Sale

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
1000 watt
Supply Capability:
1000000 watt/month

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Item specifice

Material:
Polycrystalline Silicon
Max. Power(W):
250
Number of Cells(pieces):
60

Product Description

250W Poly Crystalline Solar Panel

 
250W Mono Solar Panel Made in China for SaleSpecs

Electrical Characteristics
Maximum Power [Pmax]250W
Power Tolerance+/-3%
Maximum Power Voltage [Vmp]30.1V
Maximum Power Current [Imp]8.31A
Short-Circuit Current [Isc]8.73A
Open-Circuit Voltage [Voc]37.3V
Module Efficiency15.37%
Max. System Voltage1000VDC
Cell Size and SeriesPoly 156*156  60pcs (6*10)
Temperature Coefficient of Pmax- 0.47% / º C
Temperature Coefficient of Voc- 0.35% / º C
Temperature Coefficient of Isc0.05% / º C

Dimension (mm)1640*992*40
FrameAnodized Aluminium Alloy
Glass3.2mm,High Transmission,Tempered Glass
Junction box & CableIP65 Rated weatherproof connectors
Cable: TUV 1x4.0mm2 / UL12AWG,Length:900mm
Weight19.0Kgs


Warranty:
Warranty on material and workmanship: 10 years
Output performance of 90% after 12 years and 80% after 25 years.


FAQ

1.Price per watt?

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

2.Parameter of the 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 etc.?

We have two companies(CNBM International & CNBM engineering Co.) with different approaches. We can supply not only the solar module but also Solar Cells, off grid solar system, even service with on grid plant.

4.Warranty policy?

Our product performance guarantees for 25 years

• 12 years guarantee for workmanship

• Timeliness of delivery

• Quality Products certified (TÜV, UL, CE, ISO)

5.Lead time?

In 3 days after purchasing, we will arrange the factory delivery ASAP. The specific time of receiving is related to the state and position of customers. Commonly 7 to 10 working days can be served.


Q:Can solar panels be used for powering a mining operation?
Yes, solar panels can be used to power a mining operation. Solar energy can be harnessed to generate electricity, which can then be used to power various mining equipment and processes. However, the feasibility of utilizing solar panels for a mining operation depends on factors such as the size of the operation, energy requirements, sunlight availability, and cost considerations.
Q:I'm curious, for those who have had solar panels installed on the rooves of their houses:How much did you pay? How much energy do the panels produce? Did it dramatically cut down on your electricity bill? Was it worth it? Thanks!
No, but if you have the money, go for it. In Germany, people get a government rebate (much like the Prius rebate our own government offered) and so you see solar panels everywhere. If the Obama administration pushes for a rebate for solar panels, you will see them here in the state. It's the initial cost that puts off most potential solar panel customers. Upkeep isn't too expensive, and they ultimatley pay for themselves. (after about a decade)
Q:I have a cabin that is way out in the middle of no where, it would cost 000's of dollars to get power to it. If I have a 8,000 BTU air conditioner that runs on 25 volts and 5 amps (or 875 watts)How many solar panels will I need to run this during the day, plus charge the batteries to run it all night? How many batteries would I need
OK, in addition to the solar panels, you wil need an inverter (DC to AC; 2V t0 20V) capable of delivering 20A continuously and as much as 40A for the compressor starting surge, and a fairly large battery bank capable of delivering something over 2000 watts continuously (losses in the charging and conversion process) as well as the surge. So, if your actual demand is now calculated around 2000 watt/hour, and you need to both run the unit and charge batteries during the daylight hours - and considering that the ideal charging rate for a lead-acid battery is on the order of 0% of its capacity, you will need a huge reserve on the battery section and a huge excess on the solar section to make up for the 5 hours maximum input. So, the average high-quality deep-discharge battery will do about 400Ah @ 2.6V. Which comes to 5040 watts for one hour. For round figures, it will give you 2000 watts for 2.5 hours. You will need a minimum of eight of them just to make your system run for the 9 hours you are anticipating. Given that you do not want to run the batteries to zero each night, a 50% reserve would be a wise investment - comes to now twelve (2) batteries. Now, you will have to make 2000 watts (to run the unit) and also produce and another 8600 (per hour for five hours) watts to charge the batteries for the next night. Again, for round figures, you will need 0,000 watts of solar power, or seventy (70) panels. At ~0 watts/s.f. (00 watts/meter), that comes to about 000 square feet or 00 square meters. Modern non-crystaline panels may reduce this by 20%, or so but no more than that. You will be charging the batteries at roughly 20% of their discharge capacity - which will pretty much cut their service live in half, or so. As the average deep-discharge battery has about an 8-year life span under ideal conditions (and your situation will be far from ideal) you may expect to replace them every four years or so with good care. Much less with no care.
Q:i am working on a project which requires small solar panels. i am looking for ones about 3X4. is there any way i could get these? and where?
I bought mine from OKorder. They were from a top seller and arrived in better condition than I expected. They are 3 X 6 and have an output of .5 volts .7 watts. You will need other items as well blocking diodes, charge controllers as well as tabbing ribbon and buss wire. Learn about other components you may need at the website below. There is also an OKorder link at the bottom of the page.
Q:Can solar panels be used for powering outdoor lighting?
Yes, solar panels can be used to power outdoor lighting. Solar panels absorb sunlight and convert it into electricity that can be stored in batteries. This stored energy can then be used to power outdoor lights, making them a sustainable and cost-effective option for outdoor lighting.
Q:If a solar panel has a power rate of 80 Watts and efficiency of lets say 30%. Does that mean the maximum power this solar panel can generate is (30/00)*80=54 Watts or its just 80 Watts?
Solar panels are tested in a lab that has a light the produces 000 watt/hrs per square meter. In these conditions your panel will produce 80 watt/hrs. If you would like to know what it does in really world conditions you have to find the sun-hours in your given area. A sun-hour is basically how many watt/hrs hit a square meter in a day. This number changes based on time of year, orientation, and temperature. Here in Fairbanks Alaska if the panel was at 90 degrees facing true south in October (.9 sun-hours) It would produce 80 X .9 X .8 (20% efficiency loss due to wires and controllers) it would produce 273.6 watt/hrs on average each day.
Q:How do solar panels connect to the electrical grid?
Solar panels connect to the electrical grid through an inverter, which converts the direct current (DC) produced by the panels into alternating current (AC) that can be used by homes and businesses. The inverter is then connected to the electrical grid, allowing any excess electricity generated by the solar panels to be fed back into the grid and used by other consumers.
Q:How long does it take a 5 watt, 2 volt solar panel to charge a 2 volt R.V. battery?
It is related to the size and capacity of your battery.
Q:Can solar panels be installed on a mobile home?
Yes, solar panels can be installed on a mobile home. Mobile homes can benefit from solar energy just like any other type of home. Installing solar panels on a mobile home can help reduce energy costs and increase energy efficiency.
Q:I have purchased a 2 volt LED lantern from argos, it comes with a built in 6 volt 4ah sealed acid battery. What I wanted to know is would I be able to charge it using my 6 volt solar panel?
If it has a 6 volt battery- is it marked 2 volts on an external plug? If so, there is a resistor inside to drop the potential the battery sees. The battery itself could be slipped out and recharged easily from your 6 volt panel. Just determine how much current (in Amps or Milliamps) the panel produces nominally and divide that into 4 and add one fourth of that length of time to make up for system losses. This will tell you how many hours it should charge assuming your starting voltage of the battery is above .5 volts. and the panel is at 3 volts potential or higher. So if your panel puts out amp at 0AM, you would charge for 5 hours. 4 divided by is 4 and one fourth of that is so 4 plus is 5. It is a little more involved than that, but as a rule of thumb. Also do not discharge tha lantern to the point of no light output. LEDs are efficient, but their current will add up. If it is suggest to be able to use the lantern for up to 8 hours on a charge, stick to that value. Lead acid batteries have best longevity when discharged only to 80 percent capacity. Once battery is charged- disconnect from charging source.

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