• Cnn Solar Panels 250watt Crystalline Solar Panels for Rooftop Systems System 1
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Cnn Solar Panels 250watt Crystalline Solar Panels for Rooftop Systems

Cnn Solar Panels 250watt Crystalline Solar Panels for Rooftop Systems

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
78000 watt
Supply Capability:
10000000 watt/month

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CNBM 250watt Crystalline Solar Panels for Rooftop Systems

250watt Crystalline Solar Panels for Rooftop Systems

Specifications:


Solar panel refers either to a photovoltaic (PV) module, a solar hot water panel, or to a set of solar photovoltaic modules electrically connected and mounted on a supporting structure. A PV module is a packaged, connected assembly of solar cells. Solar panels can be used as a component of a larger photovoltaic system to generate and supply electricity in commercial and residential applications. Each module is rated by its DC output power under standard test conditions, and typically ranges from 100 to 320 watts. The efficiency of a module determines the area of a module given the same rated output – an 8% efficient 230 watt module will have twice the area of a 16% efficient 230 watt module. There are a few solar panels available that are exceeding 19% efficiency. A single solar module can produce only a limited amount of power; most installations contain multiple modules. A photovoltaic system typically includes a panel or an array of solar modules, an inverter, and sometimes a battery and/or solar tracker and interconnection wiring.


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)

1650*992*40/45/50

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.


Q:Can solar panels be used for charging laptops or smartphones?
Yes, solar panels can be used for charging laptops or smartphones.
Q:im doin a science experiment and i have a battery that is 3.6 volts , does it matter wut voltage the solar panel that im connecting it to is . Does it need to match , be less or does voltage have no effect . If so wut does matter when choosing the type of solar panel to power a bettery?
. Make sure you got the right type of battery that allow to charge from the solar panel. 2. Make sure you use a device which I forgot the name but it will make sure the charge go one way in case the light go out so will not drain the battery while it is hook up. 3. Make sure you got the right charge from the solar panel to charge the battery. Reason is easyier to swim down the river or is it easy to swim up river.
Q:I want to get a solar panel to run a fan (or two) for swamp coolers.I'm not looking to power 20box fans, just maybe some of those auto fans.What the heck kind of panel do I need? What is a power inverter and what does it do?Will I lose all my power if I use a 00' extension cord?How do I choose what I'm going to need?
Solar panels turn sunlight into direct current electricity usually at 2, 24, or 36v. You could probably have a very simple system with just a panel and a few dc fans assuming that: the panels never put out more power than the fans can handle, you don't mind the fans slowing and stopping when the sunlight fades. If you want the fans running more of the time, you will need the panel hooked to a charger that charges a car/marine type battery and the fans connected to the battery. The longer the wires, the thicker they need to be (and more expensive). If you want to use AC (alternating current like your house uses) you will need an inverter (which turns DC into AC). Each device and each section of wire loses power due to inefficiency (heat produced). Contact a solar company on line, in person, or learn more.
Q:I want to get solar panels but not spend 20,000!! I found out that you can get a panel to run only your AC unit, I also found something that will run my pool pump! Anyone own either of these? How did you do? Where did you go? How much was it, and was it hard to install?
Solar panels are very expensive and take many years to pay for themselves. You'd be better off contacting your congressmen to lift bans on Nuclear and other producers of electricity. That would lower the costs and save much more than the hassle of hooking up solar power and batteries etc.
Q:my dad met a guy representive for a solar panel company at a swapmeet Scam?
Hard to say. Solar panels are becoming more common these days. May want to ask if the vendor is licensed and bonded contractor (if he's doing installation as well as panel sales). Find out the name of the equipment that this guy is selling (panels and other hardware) and do a search. For that matter, get the guys name and do a search on it to see he pops up elsewhere.
Q:I want to replace my electricity with solar and wind. I live just right outside the city, the roof about 000 square feet. How many windmills/solar panels would it take to get me off the power grid?
I live in the Southwest where the sun shines almost every day. I got a quote for Solar system to produce about enough to cover my annual usage. My annual average electrical usage costs about $2300, or about $90/MO. The system costs around $30,000 but I can get rebates and some of your tax dollars in subsidies to bring my cost down to under $20,000. I can borrow $20,000 for 3 years at 7% and pay $95/MO, so in 3 years I will have the system paid for. As you can see, I don't start Saving any money for a long time. Maybe the rates will go up in later years which will help, but My friends that have solar systems tell me things like controllers go bad over time and they cost like $3000. Will it ever pay for itself? Maybe. Please note. This still does not get me off the grid. This system will not support things like an electric stove, air conditioning, Pool pump running, etc. so I still need the grid for when these operate and my usage peaks. If I installed a system that would totally support everything 24/7 the cost would be astronomical. If you live in the east, midwest, or NW where you have cloudy days, your economic calculations will be much less favorable I would think, unless your power costs are much higher than mine..
Q:Can solar panels be installed on a military base or facility?
Yes, solar panels can be installed on a military base or facility. In fact, many military bases worldwide have already embraced solar energy as a part of their sustainability initiatives. Solar panels provide a reliable and renewable source of electricity, reducing the reliance on fossil fuels and enhancing energy security. Additionally, they contribute to cost savings and help meet environmental goals for reducing carbon emissions.
Q:hi everyone..i wanna do my major project on solar panels...so anyone kindly tell me the projects based on solar panels..
I have done this in my project too and a solar panel, two wires, a circuit/project board, an LED light/a small fan,a switch and a solderer. Just solder the wires to the positive and negative parts of the panel, put the wires connected to the panel to the board put the LED's on the other side and the switch together with it shine light on the panel and the light/fan will work.(If it dosen't work, please DO NOT consult ME.)
Q:How do solar panels affect the property's operating costs?
Solar panels can significantly reduce a property's operating costs by generating clean and renewable energy, thereby reducing or even eliminating the need for traditional electricity from the grid. This results in lower monthly utility bills, as well as potential incentives such as net metering or feed-in tariffs that allow excess energy to be sold back to the grid. Additionally, solar panels require minimal maintenance and have a long lifespan, further contributing to cost savings over time.
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!
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