250 watt Solar Panel Polycrystalline Monocrystalline silicon
- Ref Price:
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- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 watt
- Supply Capability:
- 8000 watt/month
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Poly Solar Panels 250W is designed for large electrical power requirements.
It is the optimal choice for both on-grid and off-grid power systems.
Solar panel offers high performance of power per square foot of solar array.
Poly Solar Panels 250W of Monocrystalline silicon(c-Si): often made using the Czochralski process.
Single-crystal wafer cells tend to be expensive, and because they are cut from cylindrical ingots, do not completely cover a square solar cell module without a substantial waste of refined silicon.
If you have interest in Poly Solar Panels 250W , please contact us!
Characteristics of Poly Solar Panels 250W
I.Solar Cell : High efficiency crystalline solar cell. Even if under the weak light, the solar module can produce maximum power output.
II.Tempered glass (toughened glass): Anti-reflecting coating and high transmission rate glass increase the power output and mechanical strength of solar module.
III.EVA and TPT: Using high quality EVA and TPT to prevent destroying and water.
IV.AI frame: Without screw, corner connection. 6 holes on the frame can be installed easily.
V.Junction box: Multi function junction box with water proof.
VI.Long lifetime: ≥25 years; Less power decrease.
VII.Good performance of preventing from atrocious weather such as wind and hails.
VIII.Resisting moisture and etching effectively, not effected by geology.
IX.The certificate issued by international authority: UL, TUV, IEC, VDE, CE.
Standard Test Conditions of Poly Solar Panels 250W
The opto-electrical specifications shown below are stabilized values being measured at Standard Test Conditions, Irradiance: 1000W/m2, Spectrum: AM1.5 at 25°C, The info below is subject to manufacturing tolerances. Where appropriate minutes of measurement are available and are used for the dimensioning of the installation.
Advantages of Poly Solar Panels 250W
• Solar performance guarantees for 25 years
• 10 years guarantee for workmanship
• Timeliness of delivery
• Quality Products certified (TÜV, UL, CE, VDE, ISO)
- Q: I heard that solar energy has a lot of advantages but are there any drawbacks in using the solar panels?
- The largest drawback is the upfront investment you have to make for solar panels. There are some programs that allow you to finance the panels through your property assessment called PACE and leasing programs that can alleviate the large upfront cash outlay. Solar Panels have a lifespan of 30+ years. Since there are no mechanical parts, there is very little maintenance required. After 0-5 years, you will have to replace the inverter which converts the energy from DC to AC. This is a small cost in respect to the whole installation. The panels clean themselves well with just normal rain. With all the great federal and state incentives, the payback on solar is at it's all-time best. In Massachusetts, for example, the payback right now is 5 or 6 years -- then you would be making money for the next 25+. Another big potential drawback is that you must have the right site for solar to begin with. I'm a solar installer and I can tell you a lot of houses might not be right for solar. The best orientation is south, while southeast and southwest can work as well. The space must be unshaded and it would be best if it had few obstructions like chimneys, etc.
- Q: I'm a carpenter, and can do electric work. I want to make some money installing Solar Panels. what's the best source?
- Wow. This is a big question. First, are you in the United States? If so, then I would look at a couple of web sites. First, I would look at joining ASES - the American Solar Energy Society. (Actually, I'd do this whether or not you were in the US) Their magazine will have ads and directorys and so forth for panel manufacturers, inverter manufacturers, rack vendors, metering companies, etc. At the very least, their web site will give you numerous links to popular panel manufacturers. Right now, it can be difficult to get panels in the US. My buying agent can't promise us a significant number of panels until at least late this coming fall. And prices are going up due to a silicon shortage at the moment. Still, you could probably get your hands on small quantities. You just might not be able to choose exactly which manufacturer you want. Also, I'd look into getting NABCEP certification. This is the North American Board of Certified Energy Practitioners. They provide a referral service for people looking for solar installers, and they may have a net work of members that could help get you started. Good luck!
- Q: What is the average payback period for solar panels?
- The average payback period for solar panels is typically between 6 to 10 years. However, this can vary depending on various factors such as the initial cost of installation, location, energy consumption, government incentives, and local electricity rates.
- Q: Can solar panels be connected directly to motor?
- The sun is irradiated on the semiconductor p-n junction to form a new hole-electron pair. Under the action of the p-n junction electric field, the holes flow from the n region to the p region. The electrons flow from the p region to the n region, and the current is formed after the circuit is turned on.
- Q: I jotted down some notes for my Technology and Architecture class and I'm trying to figure out what i meant when i said 'Treated with gases at extremely high temperatures.' I have NO idea what I was talking about :) Im trying to figure out if what I am talking about is about Silicon, Polychristaline, or a Solar Cell/Panel.
- Let me help you get an idea of what you are talking about as your notes seems a bit jumbled. Mostly when they refer to a silicon solar cell they mean that the silicon is one crystal of silicon. (very much like a diamond, but with atoms of silicon instead of carbon). A single perfect crystal of silicon can be grown that is very large at temperatures near the melting point of silicon or around 400C and then is sawed up to create electronics or solor cells. Polycrystalline :) solar cells are also made of silicon, but instead of a single crystal it is made of a jumble of small crystals that have different sizes and directions. So these types of solar cells can be made using a silicon gas (siline: SiH4) at much lower temperatures 600-700C. So these are less expensive to make, but because they are not perfect crystals a poly solar panel that is the same size as a crystalline solar panel will make less energy. I hope that helps.
- Q: Is there such a thing as portable solar panels? Can these be obtained for say a mobile homes / caravans etc.
- Portable okorder
- Q: We are thinking about useing solar panels for our house.Does anyone know about solar panels? If so could you please tell me some information on them,and the cost for a home,to install them.
- It depends on what you want to do with the solar panels, Heat your water , heat a pool or spa, or to make electricity to use instead of that supplied by the power company. The first three are fairly easy and straight forward. Depending on the amount of water that needs to be heated, the location you live at in relation to the equator and the location of the solar panels and piping . The panels for this applicatin are 00s of feet of piping that absorbs heat from the sun and circlate it. The panels them selves are sort of inert and can be very heavy when filled with water.. Makeing usable power to replace the power company is a real problem because among other things solar cells create DC voltage. A house runs on AC voltage. So all of the items to heat water still apply, location, placement, etc. But now we have to figure hrs of sunlight the output of the cells running the power to a transformer to transform the voltage from 2 volts DC to 20 volts DC and then running the power thru a converter to change it from DC to AC at each point ( transformer converter ) there is a loss of power do to a change in current. After all of the above if a cloud comes by your power will stop, and at night you will have no power. The fix for that is storage cells AKA batteries which store the power until you need it, like night time. The glamor of a all solar powered home is great,, but it isn't practical. So What to do, You eliminate the battery storage, and also hooking up the power to your home. You feed it right into the power companys wiring and guess what? The electric meter on you house runs back wards your send more power to them during off peak times that your using. For every dollar the meter runs backward you get a free dollars worth when you need it. This is a way of storing the power as credit with the power company instead of batteries Its a lot to understand and I hope I helped
- Q: i want to instal solar ligth in my garden
- hello, okorder /
- Q: I recently bought a house with very old solar panels (about 25 years old) that don't appear to work properly. They are supposed to heat the hot water heater but they don't always work, and recently have staretd leaking. So, I have had them turned off and now we're just using electricity to heat the hot water. My question is, is there any tax credit money (stimulus or otherwise) available for people to (a) repair old solar panels or (b) replace them with new ones? How does the credit work?
- If you buy NEW solar panels, there is a credit. see the 040 icon at www.okorder
- Q: I am planning to run a couple of dc motors on solar current. I have a couple of 450mA 4V, 200mA .5V, 00mA 9V solar panels with me. I need to run a pair of .5A 9V motors. Suggest me a circuit along with other equipments I might require. For your info, I am trying to build a solar powered drone / UAV
- I don't think it is enough solar power. Your motor requires .5A x 9V = 3.5 watts. The solar cells are .450A x 4V x 2ea. = 3.6 watts, .2A x .5V = .3 watts, .A x 9V = .9 watts total solar = 4.8 watts. The problem with connecting the cells in series to get the right voltage, like the two 4V cells in series with the .5 volt cell (total 9.5 volts) is that the .5 volt cell limits the maximum current to only 0.2A. If you paralleled that with the 9V cell, you would get 9 volts at 0.2 + 0. = 0.3A, too low to operate the motor at its design current and voltage. The best you could do is put the two 4V cells in series, and in parallel with the 9V cell (a blocking diode might be a good idea, but probably not required for such a small array). That way you get 8 volts at 0.55 amps.
PV Solarsys, s.r.o. is production and business company operating in the field of renewable sources and its main activity is production of photovoltaic panels in high quality.
Production of photovoltaic panels is performed on –by a robot operated – production line delivered by company P.Energy S.r.l. from Italy. Production line of company PV Solarsys, s.r.o. is situated in Rozhanovce near the second biggest city in Slovakia, Košice.
1. Manufacturer Overview
| Location | ROZHANOVCE,SLOVAKIA |
| Year Established | 2009 |
| Annual Output Value | Above Euro 20 million |
| Main Markets | Romania,Slovakia |
| Company Certifications | CE,KIWA |
2. Manufacturer Certificates
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period |
3. Manufacturer Capability
| a) Trade Capacity | |
| Nearest Port | Koper |
| Export Percentage | |
| No.of Employees in Trade Department | 60 People |
| Language Spoken: | English |
| b) Factory Information | |
| Factory Size: | Above 300,000 square meters |
| No. of Production Lines | Above 4 |
| Contract Manufacturing | OEM Service Offered； |
| Product Price Range | Average |
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250 watt Solar Panel Polycrystalline Monocrystalline silicon
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 watt
- Supply Capability:
- 8000 watt/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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