Crystalline Solar Panels for 25kw Rooftop Systems

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Tianjin
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TT OR LC
Min Order Qty:
78000 watt
Supply Capability:
10000000 watt/month

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Product Description:

CNBM Crystalline Solar Panels for 25kw rooftop systems


Crystalline Solar Panels for 25kw Rooftop Systems

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)

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

Crystalline Solar Panels for 25kw Rooftop Systems

Crystalline Solar Panels for 25kw Rooftop Systems



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.


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Q:Composition and function of solar panels
Among them, for the electronic grade polysilicon accounted for about 55%, solar grade polysilicon accounted for 45%, with the rapid development of photovoltaic industry, solar cell demand for polysilicon growth rate higher than the development of semiconductor polysilicon, is expected to 2008 solar polysilicon
Q:A question about central a/c and roof solar panels?
Don't do it! It takes years to get your money back. Your better to put the money into insulation and or buying geo thermal unit. I knew someone who install solar panels on his roof to generate hydro and he didn't notice much of a change on his hydro bill and then he had roof problems . Central air units in last 2 years have become very efficient . Almost half the hydro of ones 0 years ago. If you can afford buy a geo thermal unit. It uses the heat of the ground in the winter 2 heat your house during the winter and the coolness of the ground to cool your house. They aren't cheap though. If you plan on living in your house for more than 0 years and have the room in the yard to install then go for it. No how you slice it though AC units use way more hydro than solar panels can produce. You would need about half a football field with a huge battery storage system to run a AC unit. When a company states you might on hydro I would stay away. Also remember they do not tell you about the costs of the upkeep on the solar panels and converter and batteries
Q:Need some Information about solar panels ?
No. The only coatings I am aware of are those that reduce reflection so more light gets through the protective surface to the actual cells. Anything thing that affects appearance is going to be reflecting light back to the viewer and the photons of that light are not available for electricity or heat. If the appearance of the panels offends you, then they need to be concealed by a fence of panels around them that do not throw shadows on the panels.
Q:Do solar panels plug into an outlet?
Don is spot on. The connection of that thing called the grid-tie inverter is done at the service panel, the same box where your circuit breakers for the house are. It's not the kind of thing that most homeowners should do on their own.
Q:Adding Solar Panels to my home in Portland, Oregon?
As per the question, the answer is no. Solar panels are available, they are expensive, they can reduce your energy bill, you can get up to 30% of the expense back from your taxes, but they must be installed by a qualified electrician or solar panel installer to work properly.
Q:Benefits of Solar Panels?
Would that be Portland General Electric? I used to live in Beaverton. I think technology has not progressed enough for solar electric panels to be a good deal in that area. Too many clouds. If you were over in Eastern Oregon, that would be clearer. If you meant Pacific Gas and Electric, that's another story. It's a good deal in most places in California. PGE only gives a trivial rebate on panels now, but that's ok.
Q:Maintenance for solar panels....?
All panels should be cleaned to function best. Brush or wash off dirt and leaves. They should be checked for structural integrity and lack of rust. Solar Thermal panels should be checked for signs of leaks and/or discharge from pressure relief valves. Solar Photovoltaic should be checked for electrical function and grounding.
Q:Solar panel help please?
Solar water heating is low technology. There are do it your self plans for it all over the internet. There is no electricity involved. Simply laying a garden hose on the ground in the hot Sun can heat the water to really high temperatures. Just have a shutoff nozzle on the hose, turn on the tap and open the nozzle until water comes out and then close the nozzle at the end of the hose. Let the hose full of water sit in the sun for an hour or so and then open the nozzle and feel how hot the water is that comes out. Be careful, because it can be so hot you can get a burn! When the gallon or so that can fit in the hose has all come out and is replaced by other water from the tap, it will feel cold again. Close the nozzle and wait another hour to heat it up again. A solar hot water heater is just a very long coil of pipe in the Sun, maybe with a pump to slowly circulate water from a holding tank so you can make and store more hot water that fits in the hose. Solar electric power is completely different. It uses semiconductor devices called solar cells to make electricity directly from light. Many of solar cells are usually arranged into large panels to make larger amounts of power. In electricity, Watts = Volts * Amps. Battery capacity is usually measured in Amp-hours. Small solar panels are often designed to produce electricity at 2 volts. A 60 Watt, 2 volt panel makes 5 Amps of electric current, because 2*5=60. So if you use it to charge a 2 volt battery with a capacity of 5 Amp-hours it will take hour to charge. A 0 Amp-hour battery would take 2 hours to charge with the same panel.
Q:how can i optimize power in a solar panel?
first place the panel so it is at right angles to the solar rays. Make sure none of the panel has any shade whatsoever. For best results use motor drives to keep it in that position as the sun moves across the sky. For overall maximum versus time, you need to be near the equator. Solar cells have a high internal resistance, so for maximum power transfer, you need a load of that same resistance. A good charge controller will use DC-DC converters to provide that load. .
Q:Solar Panel - Cell Resources and Calculations?
The two wiki links below provide basic explanations that are good starters. They also lead to other information. You do not mention much about the actual project, so I can only guess what level to pitch the answer. In practical situations you will not be able to work out Solar panel performance by a formula, but by looking up the manufacturer's specification (data sheet). From that you have the power in watts that can be drawn from the panel for standard sun which is taken as 000W/m^2 at a standard temperature, usually 25C. Derate the panel for the temperature when it operates in the sun (50-60C).

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