• Polycrystalline Solar Panels for 25kw Rooftop Systems System 1
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Polycrystalline Solar Panels for 25kw Rooftop Systems

Polycrystalline Solar Panels for 25kw 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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Polycrystalline Solar Panels for 25kw Rooftop Systems

Polycrystalline 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

Polycrystalline Solar Panels for 25kw Rooftop Systems

FAQ:


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.


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:Where in the world are solar panels used. If it is used widespread across a continent just say which continent, other than that, just name the country. So where are solar panels used often?
Solar panels are used to help reduce electricity you put them on your roof and you get the suns raze and that turns into solar electricity
Q:What about sources for straight forward solar powered products? Excluding toys, garden frogs and outdoorpath lights I have found few useful items for the home. What I have found are solar panels for under $00 each, inverters, rechargeable indoor lights and a few camping/RV products that are interesting. It seems to me that these could help me start to wean the family off the power company. I can't afford to go cold turkey and cover my roof with solar panels and I don't think the HOA would allow me to even if I could. Is anyone using solar on a small scale?
I have an active solar heater on my roof. During the winter it comes in handy and heats the house, though we still need to use a gas heater to get the temperature up to a comfortable level.
Q:i need to cut down on electricity bills, and so i was wondering if someone could give me step-by-step instructions, or websites that have step-by-step instructions on how to build an electricity generating solar panel.
Build okorder
Q:Can solar panels be damaged by hail?
Yes, solar panels can be damaged by hail. Hailstones, especially larger ones, can cause cracks or dents in the glass surface of solar panels, which may impair their efficiency and performance. It is important to note that the severity of the damage will depend on the size and speed of the hailstones, as well as the quality and durability of the solar panel materials.
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 :) !
Solar okorder /... you'll notice that they have different curves for different temperatures. But they do still produce power, certainly. I have an array on my roof, and it still manages to max out the inverter on a hot summer day. But I do notice that the top row, which is hotter due to heat rising from those below, consistently puts out a few less watts than the bottom row. So more sun is certainly better; direct light is exactly what's needed. But hot panels due to poor air circulation or high ambient temperature does cut into efficiency. (Solar thermal, of course, is a different story)
Q:Okay, I think I understand what I'm doing, but I want to set up some solar panels on the roof of my garage, the building that gets the most sun, and I want to make sure all my math is correct in determining number of megawatts per year. However, my knowledge of electrical terms in quite n00bish, to say the least.Here is what I think I should be doing.The solar cells come at .75 Watts average power.I will install 4 panels of 64 cells each, with a total of 256 cells.
For comparison, 36 of these make a normal 2V x 50W panel. Note they are not tabbed. This means you have to find a way to connect them yourself. The tabs are probably spot welded on by the suppliers. A supplier below has kits of these with tabs, as needed to connect them together. These are not suitable for grid connect, because the higher voltage needed makes do it yourself panels a dangerous and litigious thing to have on your roof. Maybe you could buy a smaller pack from the link below to compare tabbed and untabbed and work out what to do. Your power calculation is a bit incorrect because the sun is only present some of the time. The 36 cell module would produce 50W when square on to the full sun. The sun may be out for around 2h a day in some places and times of the year. However it is the equivalent of 5h full sun, because of the changing angle throughout the day. Look this up on the internet for your region. Temperate zones may be a lot less. One pack in your link is 36x3 = 08 cells. Thus 50W per pack x 5h a day gives 750Wh per day and 274KWh/y. In reality it will always be less because of regions, weather, clouds, dust, inefficiencies, aging of cells.
Q:Can solar panels be installed on historic homes or buildings?
Yes, solar panels can be installed on historic homes or buildings. However, the installation process may require careful planning and consideration to ensure that the panels do not compromise the historical integrity of the structure. Some guidelines and regulations may need to be followed, such as placing the panels on less visible areas or using panels that blend well with the building's design.
Q:Can solar panels be installed on windows?
Yes, solar panels can be installed on windows. There are transparent solar panels available that can be installed on windows to generate electricity while still allowing light to pass through. These panels are designed specifically for windows and can be a great way to utilize the available space for solar energy generation.
Q:okay so i want to know if solar panels shine. ------(MY Q'S ABOUT BLINDNESS DOESN'T MEAN PERMANENT OMG I CAN'T SEE! BLIND BUT THAT WE JUST CANquot;T SEE AT THE MOMENT BECAUSE OF THE LIGHT.)------------------------------like if/when they face the sun is there a glare to the people around?-if there is would the person have to look directly at it? -Could it reflect off of other objects and cause temporary blindness or just shine light in person's eyes?-if there were windows and mirrors near the solar panel would it affect a person's sight?-and if it did for how long would it hurt or take affect?-and is this physics? like-solar panels and how they work is that physics or some other category?
Solar panels reflect less sun than a piece of window glass, and people aren't harmed by the sun's reflection off windows. Also, solar panels tend to be tilted more or less directly toward the sun, so the light that they reflect is back at the sun, not down into the street or yard where people are. Those huge power tower concentrating solar thermal plants have a brilliant light reflected off the boiler. But those are put out in the desert, away from people.
Q:Can solar panels be installed on a boat or yacht?
Yes, solar panels can be installed on a boat or yacht. Many boat and yacht owners opt to install solar panels to harness the sun's energy and power their electrical systems on board. These panels are typically mounted on the boat's roof or deck, and can provide a sustainable and renewable source of power for various applications while out on the water.

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