Huge Solar Panels - 20W Good Quality Low Price Solar Panels

Huge Solar Panels - 20W Good Quality Low Price Solar Panels

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 7000 watt

Supply Capability:: 100000000 watt/month

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Specifications

solar panels from 5W--300W, made of TAIWAN MOTECH brand cells,with CO in TAIWAN,Mono and Poly with VDE,IEC,CSA,UL,CE,ISO.

We import solar cells from Taiwan Motech brand, with this CO in taiwan and our CSA certification,we can still sell goods to Anti-dumping areas like USA. Our main products are solar panels, off grid and on grid solar home systems , solar street lighting systems, solar water heating system,solar pump,solar attic fan, solar DC LED lights and solar DC refrigerators.

Certificates : ISO, CE, VDE IEC, MCS, CSA-UL, CEC.
Delivery time: sample 10days, order 25-30days.
Sample: charged.
Payment term: T/T 30% as deposit, 70% before shipment. Or irrevocable L/C at sight.
Trade term: FOB Shenzhen or CIF destination seaport or Airport.

Characteristics:

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.

Quality and Safety

1. Rigorous quality control meets the highest international standards.

2. High-transmissivity low-iron tempered glass, strong aluminium frame.

3. Using UV-resistant silicon.

4. IS09001/14001/CE/TUV/UL

Warranties

1. 10 years limited product warranty

2. 15 years at 90% of the minimal rated power output

3. 25 years at 80% of the minimal rated power output

Technical date :

ITEM NO.:	Poly 156*156 cell ,60pcs . Power range from 230Wp-260Wp
Maximum Power(W)	230	235	240	245	250	255	260
Optimum Power Voltage(Vmp)	29.4	29.5	29.7	30.1	30.3	30.5	30.7
Optimum Operatige Current(Imp)	7.83	7.97	8.08	8.14	8.25	8.37	8.48
Open Circuit Voltage(Voc)	36.7	36.8	36.9	37.1	37.3	37.5	37.7
Short Circuit Current(Isc)	8.52	8.59	8.62	8.65	8.69	8.73	8.78
Solar Cell:	156*156 Poly
Number of Cell(pcs)	6*10
Name of Solar Cells	Polycrystalline Cell
Size of Module(mm)	165099240/45/50
Cable & Connector Type	Pass the TUV Certificate
Frame(Material Corners,etc.)	Aluminium-alloy
Back sheet	TPT
Weight Per Piece(KG)	19.5KG
FF (%)	70-76%
Junction Box Type	Pass the TUV Certificate
Tolerance Wattage(e.g.+/-5%)	±3%, or 0-3%
Front Glass Thickness(mm)	3.2
Temperature Coefficients of Isc(%)	+0.04
Temperature Coefficients of Voc(%)	-0.38
Temperature Coefficients of Pm(%)	-0.47
Temperature Coefficients of Im(%)	+0.04
Temperature Coefficients of Vm(%)	-0.38
Temperature Range	-40°C to +85°C
Surface Maximum Load Capacity	5400Pa
Allowable Hail Load	23m/s ,7.53g
Bypass Diode Rating(A)	12
Warranty	90% of 10 years, 80% of 25 years.
Standard Test Conditions	AM1.5 1000W/ 25 +/-2°C
Packing	carton or pallet
1*20'	14 Pallets / 316pcs
1*40'STD	25 Pallets / 700pcs

FAQ

I..Will you focus on the safety of the goods during transportation?

Yes, Safety of the cargo is the primary element that we would consider on transportation.

II..How would guarantee the quality will meet the requirements of your clients?

Before shipment, we will have inspection for each batch of goods.

III..What certificates do you have?

IEC,UL,TUV,CSA,etc.

IV..Can you do OEM according to clients’ requirements?

Yes, we have our own brand while we can provide OEM service.

SOLAR PANELS GOOD QUALITY AND LOW PRICE-20W

Q: is this fact true? - its a limitation to solar panels during summer when it's in extremly hot countrie. I've heard it from my science teacher .. please give detail if you have any and any more benefits/limitations is welcomed .. Thank you :) !: So what do higher temperatures do to solar photovoltaic panels? As temperatures rise, the efficiency of solar panels decreases. Heat causes electrical resistance to the flow of electrons. On days where the temperature is more than 75 degrees, the electrical resistance makes the voltage fall thereby producing less kilowatts per hour. Your roof is much hotter than temperatures on the ground. That’s why solar panels are not mounted flat to a roof. There’s usually a few inches of spaces between the panels and roof so air flow can easily pass through and cool the panels down. There are some photovoltaic panels that are designed specifically to operate in hotter temperatures. These panels have a higher temperature coefficient. This is especially important in high heat climates like Arizona or New Mexico, but probably wouldn’t make too much of a difference in New England (except maybe this year). If you do live in one of these areas, you should speak to your solar installer to make sure they are using they right equipment for your region. Please note: Solar thermal panels used to heat water can withstand high temperatures without any degradation. In fact, hotter temperatures would actually be better for these types of modules.

Q: I am doing a report about solar power and I need to know what determines the amount of electricity produced?example: exposure to sun, angle of panel, qualityplease tell me as much as you canmuch appreciated: It depends on what you mean by amount of electricity. Normally that would mean the total energy produced over a given period. In that case, the main factors are ) Efficiency of the solar cells 2) Total irradiation received: incident radiation density times the solar panel area, and the angle of the incident radiation. Item ) is determined by the materials and method of construction of the solar cells Item 2) depends on the location of the panel, both on earth's surface (latitude), time of year, and how the panel is oriented with respect to the horizontal. Altitude of the location can also be a factor. Prevailing weather conditions, number of cloudy days, etc. are important. Independent of these parameters, larger area means more electricity.

Q: i am wanting to build a small tiny house running 3-4 2 volt 5 watt light bulbs for a lighting source and using a Koolatron Fun Kool 26 Quart 2V Portable Mini Fridge This cooler consumes 4.5 amps at 2 volts. The conversion is: 4.5 amps (X) times 2 volts (=) equals 54 watts. and i want a solar system that will have back up for 2 days with the lights on for probly 5-6 hours a day so theirs no room for error: you silly ! with Solar there is always room for error . you have to build it in to your numbers . solar is full of errors . So you should plan on producing at 3 times what you expect you will need . then you have enough .

Q: I want to also know if the 0 watt rating on the solar panel is 0 watts per day or is it constantly adding 0 watts? Is there a time which the 0 watts is being added like 0 watts per second or 0 watts per minute and so on?: 0 Watt Solar Battery Charger

Q: I need to know what the main components of a solar water heater and how they functionThanks if you answer x: Solar water heater consists of solar vacuum tube,water storage tank,supports and other accessories.solar vacuum tube is the key component of a solar water heatert,it absorbs sunlight and convert it to heat energy which heat water in the vacuum tube,hot water rises up,cold water fall down,such natural circution make water hot in the water tank.

Q: I'm making a model of a solar photovoltaic tower for a school project. I need a way to store energy, and we thought about using capacitors (mainly because of our somewhat limited funding). The tower will have a small photovoltaic panel (around the size of a laptop keyboard with number pad) and some (around 50) quot;heliostats(just the mirrors, no moving parts). What kind of capacitors should i use? and would a capacitor bank be better? i am getting confused with all those uF, pF and can't see the difference.Thanx in advance: There okorder /

Q: What are the benefits of solar panel heating?What does it cost for solar panels?any other important facts about it?: Solar okorder /

Q: I don't see much solar panels on people's houses where I live. I got a long time to go before doing so but I was planning on buying a few solar panels when I retire in the far future. In your opinion, is such an investment worth it? Would you buy them? I realize they are very expensive hence why I said when I retire. Thanks for your opinion: Solar power is still an expensive way to purchase power, as of 2007, it was 38 cents per kwh while the cost of power from coal is 0.6 cents per kwh. Of course regulations have prevented new coal power stations from being built so it's really natural gas power stations at 5 cents a kwh that solar has to compete with. Solar is dropping in price but the best you can hope for is for it to reach parity with natural gas someday soon and it hasn't yet. The other issue is that you pay up front for solar power which as any economist will tell you is even more expensive and involves greater risks. However, as part of a strategy to become as self reliant as possible when you retire and have a fixed income, it's a reasonable prospect, not only will the technology become less expensive by then but at that point, fixing the price of the energy costs is more valuable than the cost of the energy. Focusing on personal finance and learning how to invest which very few people know how to do is more important right now. When you retire, hopefully you can afford to build a passive solar home with photovoltaic solar panels and wind turbines but still on the grid for efficient net metering and with a greenhouse where you can grow the staples that you need and perhaps even some biodiesel for your google driven car. Having a reasonable portfolio is really the only way to achieve that goal.

Q: What's your opinion on solar power? More specifically, having panels installed on your roof to reduce your electric bill. I'm having a consultation tomorrow to get more details. I live in the SW, so it's always crazy sunny here. I don't know what the cost will be yet. Is it something you'd consider if the situation was right? If not, why?: You dont say where you live? you need to consider average sunshine hours. There are some sites on the net that will work out for you what percentage of nameplate capacity you could expect to receive for different areas. Usually the capital cost wont be paid off for at least ten years, so money wise you would do much better by investing the cash. I once asked a guy (climate warmer) whether his solar panels had paid off or would do in the future, his answer was no but it was the right thing to do morally.

Q: I am currently building a house, iv designed it to be as self sustainable as possible, I'm in the process of installing solar panels but as I'm ordering online I was hoping someone here could tell me how many I would need to completely run a 5 bedroom home, just standard household appliances such as fridge and freezers, plasma tvs computers and of course lighting, various things like that, also I'll need power storage as well, some type of large rechargeable battery, any help would be great.: You're missing a few assumptions: - where on the globe? - how well is your house insulated, how do you plan to heat/cool your house? - why do you insist on power wasting appliances like plasma screens? Usually, unless it's absolutely impossible, a grid-tie-in system is much better than an insular system. You could use the grid to 'store' electricity for those times when the sun isn't shining and as fall-back if your yield isn't quite as good as you calculated. With the battery system, you'll have to specify your reliability requirements. If you want a 00% guarantee that you'll always have electricity, even if the sun is not shining for a week longer than you've planned according to the past weather history of your area, you'll either have to ridiculously oversize your battery (and panel) system, or plan for some sort of backup system anyway. Finally, if you're really planing such a system, you might want to take a look at the fridges and freezers used on sailboats: these use a eutectic cold accumulator, i.e. you 'charge' the fridge when the engine is running (or the sun is shining) and it'll then keep the temperature for another ~2...35 (professional systems) hours.

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