Condo Solar Panels - Polycrystalline Solar Panel 250W Good Quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 6000 watt
- Supply Capability:
- 6700000 watt/month
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Specification
Benefits of Solar Power:
Following to RMI, Balance-of-System (BoS) elements, this is, non-module cost of non-microinverter solar modules (as wiring, converters, racking systems and various components) make up about half of the total costs of installations.
For merchant solar power stations, where the electricity is being sold into the electricity transmission network, the cost of solar energy will need to match the wholesale electricity price. This point is sometimes called 'wholesale grid parity' or 'busbar parity'
Specifications of Mono Solar Panel
Average pricing information divides in three pricing categories: those buying small quantities (modules of all sizes in the kilowatt range annually), mid-range buyers (typically up to 10 MWp annually), and large quantity buyers (self-explanatory—and with access to the lowest prices). Over the long term there is clearly a systematic reduction in the price of cells and modules. For example in 2012 it was estimated that the quantity cost per watt was about US$0.60, which was 250 times lower than the cost in 1970 of US$150.
Real world prices depend a great deal on local weather conditions. In a cloudy country such as the United Kingdom, price per installed kW is higher than in sunnier countries like Spain.
Mechanical data and design
Format | 156mm x 156mm±0.5mm |
Thickness | 210μm±40μm |
Front(-) | 1.5mm bus bar (silver),blue anti-reflection coating (silicon nitride) |
Back (+) | 2.5mm wide soldering pads (sliver) back surface field (aluminium) |
Temperature Coefficient of Cells
Voc. Temp.coef.%/K | -0.35% |
Isc. Temp.coef .%/K | +0.024%/K |
Pm.Temp.coef. %/K | -0.47%/K |
Electrical Characteristic
Effiency(%) | Pmpp(W) | Umpp(V) | Impp(A) | Uoc(V) | Isc(A) | FF(%) |
18.35 | 4.384 | 0.526 | 8.333 | 0.63 | 8.877 | 78.39% |
18.20 | 4.349 | 0.526 | 8.263 | 0.63 | 8.789 | 78.54% |
18.05 | 4.313 | 0.525 | 8.216 | 0.63 | 8.741 | 78.32% |
17.90 | 4.277 | 0.524 | 8.161 | 0.625 | 8.713 | 78.04% |
17.75 | 4.241 | 0.523 | 8.116 | 0.625 | 8.678 | 77.70% |
17.60 | 4.206 | 0.521 | 8.073 | 0.625 | 8.657 | 77.36% |
17.45 | 4.170 | 0.519 | 8.039 | 0.625 | 8.633 | 76.92% |
17.30 | 4.134 | 0.517 | 8.004 | 0.625 | 8.622 | 76.59% |
17.15 | 4.096 | 0.516 | 7.938 | 0.625 | 8.537 | 76.80% |
17.00 | 4.062 | 0.512 | 7.933 | 0.625 | 8.531 | 76.18% |
16.75 | 4.002 | 0.511 | 7.828 | 0.625 | 8.499 | 75.34% |
16.50 | 3.940 | 0.510 | 7.731 | 0.625 | 8.484 | 74.36% |
FAQ
Q: Do you have the CE, TUV, UL Certification?
A: We’ve already passed all the tests, and any certificate is available.
Q: 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
A: Actually we are only manufacturer of solar panels, but we could try to source them for you in China if you need. We could provide you an optimal system design to instruct you how to install.
Q: What is your warranty system?
A: For c-Si panel: 25years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 5 years.
For a-Si panel: 20 years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 2 years.
- Q: i want to go off grid with solar panels but i need to know how many vots and watts i need to power my house
- Complex question.... Let me try to simplify it some: Make a list of every electrical device you MUST have. Add to the list how many hours a day it is actually ON. Add to the list how many watts (listed on the label or Volts times Amps) the device uses. (If you have a measuring device, use it.) For each item, multiply volts times hours = watt-hours (this is total energy used per day). Also, add the watts column for all the devices (this is the maximum instantaneous power to be used). Your solar panels should be able to provide power for your total load, so your panel's output power should equal the maximum instantaneous power used. If you can limit how many devices are used at a time, you may be able to reduce the panel size. Look at the total watt-hours. This is the total energy. Your panels generate maximum output when they are perpendicular to the sun at noon on a clear day. They generate reduced output in the morning and afternoon. They also generate substantially reduced output on cloudy days. Also, did you want electricity at night? On cloudy days? You will need batteries.. lots of batteries. And batteries are inefficient.. figure about 50% efficiency after a few years. Basically, here is a very rough formula: Panel_watts = Load_watthours / hours_sun_daily / 60%_angle_efficiency / 50%_battery_inverter_efficiency Once you've figured out the panel's watts, watts/volts=amps. Your system can be 2V with more amps, or 48V with /4 the amps... but the watts are the same. Just the wiring is different. For the battery bank, you need to determine how much backup power you will need for nights and cloudy days. Look at the watt-hours needed at nite, multiply it by the number of days and then by 2, to allow for battery aging. Unless you only have a couple devices and an LED light or 2, it is going to be VERY expensive.
- Q: Can solar panels be installed on walls?
- Yes, solar panels can be installed on walls. While they are commonly mounted on rooftops for optimal sun exposure, they can also be installed on walls using specialized mounting systems. Wall-mounted solar panels are a viable option for locations with limited roof space or where the roof is not suitable for installation.
- Q: Can solar panels be used for powering a theme park or amusement park?
- Yes, solar panels can be used to power a theme park or amusement park. They can provide a sustainable and renewable source of energy to meet the power needs of various attractions, rides, and facilities within the park. By harnessing sunlight, solar panels can generate electricity that can be used directly or stored in batteries for later use. This not only reduces the park's carbon footprint but also helps to lower operational costs in the long run.
- Q: How do solar panels affect the property's sustainable development goals?
- Solar panels contribute to a property's sustainable development goals by promoting renewable energy generation. They reduce the property's reliance on fossil fuels, lower greenhouse gas emissions, and help combat climate change. Solar panels also provide a clean and abundant source of electricity, reducing the property's environmental impact and contributing to its long-term sustainability.
- Q: Can solar panels be used to power a military base?
- Yes, solar panels can be used to power a military base. By harnessing solar energy, military bases can reduce their dependency on traditional energy sources and enhance their operational capabilities. Solar panels can provide a reliable and sustainable source of electricity to power various facilities and equipment in a military base, contributing to energy independence and environmental sustainability.
- Q: I hooked up a 2V solar panel to a small relay. The relay switches at 9V. When I have light shining on the panel it puts out aorund 3-4V, but when I hook it up directly to the relay it drops to V and doesn't switch the relay. Why? and How do I fix it?-2V Mono-Crystalline Solar Panel -JWD 7 4 reed relay
- Your solar panel output too little current that cannot be used to power the relay. Change the panel into 2V 500mA type shall work.
- Q: I am doing a science fair project on solar panels, and I need four solar panels to conduct the experiment. I would only need the solar panels for a week. What type of solar panel should I get?
- Solar okorder
- Q: How do solar panels impact the energy independence of a region?
- Solar panels can significantly enhance the energy independence of a region by generating clean and renewable electricity. By harnessing the power of the sun, solar panels reduce dependency on fossil fuels, which are often imported from other regions or countries. This increased reliance on solar energy can help reduce the costs associated with importing and transporting traditional energy sources, thus promoting greater energy self-sufficiency. Additionally, solar panels enable communities to generate their own electricity, reducing their reliance on centralized power grids and fostering local energy production. Overall, solar panels play a crucial role in enhancing the energy independence of a region by providing a sustainable and locally-sourced energy solution.
- Q: I was watching an idiot abroad, and I saw a family that lived in tent like huts, with no plumbing. And they had a solar panel, now if they can afford it, I know I can. Where do you get cheap ones?
- We are having solar panels installed this Friday. Call a company called Solar City. You can work it through them 3 different ways, you can buy them out right and reap 00% savings, or lease them (like we are) and sign a contract. You won't pay a dime to lease them but your savings won't be as much. The plus side is, you don't have the huge expense either and they are responsible for the maintenance. Lastly, you can lease as the latter option, and purchase during any point of the lease at a pro-rata cost. You can also chose to buy the panels cheaply when your lease is up, but they may be very outdated by then. We have found Solar City top notch, highly trained, extremely polite and considerate. We found them set up at Home Depot. It took from about last January, I think it was, until this Friday, for installation, and then it will be about another 6 weeks until the service is actually turned on. Government red tape, etc. Good luck. I hope this helped.
- Q: I want to know how many solar panels to use to power my AC and Water heater
- You can power all your house with solar panels, you can follow some simple video instructions to build all your solar panel and solar power needs manually for your home electricity..
Send your message to us
Condo Solar Panels - Polycrystalline Solar Panel 250W Good Quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 6000 watt
- Supply Capability:
- 6700000 watt/month
OKorder Service Pledge
OKorder Financial Service
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