280w Solar Panel A Grade - Solar Panels South Wales
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 watt
- Supply Capability:
- 100000000 watt/month
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Specification
Material:
Polycrystalline Silicon
Max. Power(W):
250
Number of Cells(pieces):
60
Size:
1680*992*35
Description
High cell efficiency PV solar panel with quality silicon material for long term output stability and reliability.
Rigorous quality control to meet the highest international standards.
High transmittance, low iron tempered glass with enhanced stiffness and impact resistance.
Unique frame design with high mechanical strength for easy installation.
Advanced encapsulation material with multilayer sheet lamination to provide long-life and enhanced cell performance.
Outstanding electrical performance under high temperature and low irradiance conditions.
48 Back-Contact monocrystalline Si solar cells (approx. 18.35%).
Our Advantages
Long Service Life
2.High Efficiency Solar Cells
3.Special Aluminum Frame Design
4.High Transmission, Low Iron Tempered Glass
5.Advanced Cell Encapsulation .
Solar System characteristic:
1. All Systems have LCD digital display which allows you to see the system working, (eg) Charge data, System voltage, Daily power consumption and temperature.
2. All type of BPS system both has AC and DC output.
3. All system have automatic switch , If mains power goes off the system will switch automatically over to battery power, When mains power resumes
the system will switch back automatically. The batteries will resume recharging automatically.
4. All inverters are Pure Sine Wave inverters. This allows the use of Air Conditioners and refrigerators without any problem.
5. Each component has a single chip detector. Assembled by the IPM or IGBT of Mitsubishi
This protects the system from Overloads, Low Voltage and Under Voltage (alarm) Over Heating, Short circuit, Reverse Polarity.
Product details show
Our Service
1. We will reply with in 24 workingday hours.
2. The size and voltage of solar panels can be customized by customers' requirements.
3. Professional manufacturer. You are warmly welcomed to visit us!
4. We have a professional engineers team, we can answer your questions about our products.
5. Each step after many tests to ensure that the panel can work normally.
6. We will be offer a good discount for big amount.
- Q:I contend:As far as the solar panels causing global warming I'll try to explain. If you put a black panel on the ground or on your house and don't connect it to anything, it will absorb solar energy (heat) during daylight and release it at night (radiation). The net heat gain is zero. If you hook up a solar panel in the same place but hook it up to batteries, charge the batteries during sunlight hours and using that energy to electrically heat the home at night. The panels will absorb solar energy during the day but will convert that to electrical energy in the batteries instead of radiating it back into space at night. The result is a net gain in earth's temperature.Right or wrong?
- As far as it goes, you're right: putting up a big black object increases the total amount of energy absorbed from the sun. But that's only part of the story. If you didn't put up the solar panel, the same radiation would hit the earth. The earth already absorbs 2/3 or so of the energy that comes in (albedo .30), so adding even a perfectly black object increases it only by 50%. But it's not even that much, because most of the extra energy absorbed is converted into electricity. Solar panels are about 0-5% efficient, so half of the extra energy is turned into electricity rather than heat. Eventually it's put to use and turned into heat, but that heat was going to come from somewhere else anyway. (Even if it's just powering your DVD player, it turns into heat just the same as if you were using it to heat your house.) If you dig up a gallon of petroleum or fission a microgram of uranium, that's heat introduced into the earth's atmosphere. And these processes are inefficient: between generation and transmission you lose about 75% of the energy, meaning you've introduced 4 times as much energy into the atmosphere as you've actually used. So with a solar panel, you add extra heat to the earth by about 25% of incoming solar radiation, but you've offset external costs by about 45% of incoming solar radiation. The net effect is to cool the earth. And that assumes that the solar panel itself is perfectly black, which isn't the case. Real commercial solar panels have an albedo of about .35, which makes them more reflective than dirt and considerably more reflective than asphalt shingles, which have .03 albedo. In other words, even if you didn't actually use the solar panels for electricity, they'd be cooling the earth just by reflecting energy back into space more than your regular shingles.
- Q:How to Compare Solar Panels? ?
- Each okorder may help you
- Q:I'm doing a science fair experiment with a tiny two-inch solar panel that only gives off like .5 volts of energy, but I need to know how many volts an average sized solar panel (like one you'd get to run your house) would produce. And how many panels do people usually get?
- 2 volt and 24 volt are both common sizes. They are rated in voltage and watts. So you add the watts of the panels and buy enough to produce the amount of watts you need. For example, if you need 400 watts of power at 2 volts, you would buy four 00 watt 2 volt panels and connect them in parallel.
- Q:Rooftop solar panel (not sure if rubber or plastic?) has leak arising from thin vertical crack in panel about long. Any ideas for repair?Thanks.
- Depending on the material and operating temperature of the panel, it MAY be possible to fix it very simply and easily by applying Hot Glue Gun adhesive over the cracked area. The high temperature glue gun adhesive melts at approximately 60 degrees Farenheit, and if the collector temperature does not quite reach, or exceed that operating temperature, then that repair method should work. Another possibility is an aerosol spray can product called LeakEnder. This is usually available at your local hardware store, or the major home improvement centers [like Lowe's, Sutherland's, Home Depot, McCoy's, etc.]. After preparing the area to be patched by cleaning, you just spray the LeakEnder patching material on the crack and an eighth of an inch or so around. IF the operating pressure or the collector is very low, it MAY even be possible to patch the leak with nothing more than a narrow strip of DUCT TAPE!!!!! Another possibility, but unless carefully accomplished is to weld the crack with a Soldering Gun and some scrap plastic from packaging material. The problem with this fix is that you must be very experienced in application of heat from the Soldering Gun, OR you will melt a larger hole in the collector tube than the crack was. Regardless of patching method, it is CRITICAL that the cracked area to be patched MUST be CLEAN and DRY BEFORE applying any patching material. Good luck!
- Q:Can solar panels be installed on a sports stadium?
- Yes, solar panels can be installed on a sports stadium. In fact, many stadiums around the world have already adopted solar energy systems to generate electricity and reduce their carbon footprint. These panels are typically installed on the roof or in parking lots surrounding the stadium, taking advantage of the large surface area available. Installing solar panels on a sports stadium not only helps in generating clean energy but also serves as a visible statement of the stadium's commitment to sustainability.
- Q:want to run 400 watt heater 8 hrs a day how many solar panels do i need and batteries
- well, you need to produce 3200 watt-hours per day with your solar panels how many you need depends on the type of panel and size and how much sun you get (the energy of the rays depends on your latitude and the time of year) the amount of batteries you need again depends on your requirements and your insolation if you only need to heat when the sun is shining then you don't need any batteries at all if you want to heat for 8 hours after the sun has quit shining then you obviously need batteries to hold 3200 watt-hrs of electricity to actually size a 3200+ watt-hr solar system you need a lot more information
- Q:They have been around long enough to be cheaper. Unless they are made out of a natural material that is rare and hard to find, there is no reason why they should be so expensive. On another note, I think that all low power devices like cell phones and even laptops should have solar panels. Even if it is not enough to fully power the device for a long period of time, it will provide some electricity savings and with millions of people saving a little power adds up.
- Photo okorder /... Notice it costs over $200 and it takes up a sizable amount of space. Plus you have to expose it to bright sun light. Over all this is not something the average consumer wants to spend money on or fuss with. If something is expensive, difficult or inconvenient to use then people won't use it. Just the basic economics of such a device limits its sales never mind its functionality and usability. Even if you made a small one buit into the cover to extend the battery you won't get much of an extension and you will increase the cost of your laptop. Consider how people shop, will they buy the more expensive laptop for a questionable amount of battery extension? Mass production can lower costs but in order to mass produce something you need a demand that will consume what you produce. But if no one wants the item because of the aforementioned issues than you can't justify mass producing the item. This is like the classic which came first Chicken or Egg problem, one doesn't happen without the other. Cost reduction doesn't happen without consumer demand. This is where tax incentives, subsidies, low cost loans and energy buyback contracts come into play in order to spur on demand and jump start mass production. You could also make electricity extremely expensive by taxing oil and carbon so that a Solar Cell becomes economically competitive to very expensive electricity. Problem with this option is the negative impact high energy costs have on economic activity. Just look at what happened a couple of summers ago when gas hit $4/gal. To spur on demand we need to incentives the use of Solar cells (and other alternative energy). This can be done through several means such as subsidies, tax incentives, low interest loans, energy buyback contracts etc...
- Q:I am doing a project for school and i need to power a 9v DC motor using a solar panel. Does anyone know places i could get these for not to expensive, and how many volts/watts i would need?
- Radio Shack.
- Q:How do solar panels affect home resale value?
- Solar panels can have a positive impact on home resale value. Studies have shown that homes equipped with solar panels tend to sell faster and at a higher price compared to similar homes without solar panels. This is because solar panels offer potential buyers the benefit of reduced energy costs and a more sustainable lifestyle. Additionally, as renewable energy becomes increasingly important, having solar panels can make a property more attractive and desirable in the real estate market.
- Q:How do solar panels affect the property's resale time?
- Solar panels can significantly impact a property's resale time by reducing energy costs, increasing the property value, and attracting environmentally conscious buyers.
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280w Solar Panel A Grade - Solar Panels South Wales
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 watt
- Supply Capability:
- 100000000 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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