Solar Polycrystalline Panels (25W-35W)

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Solar Polycrystalline Panels (25W-35W)

Introduction of Solar Polycrystalline Panels  (25W-35W)

Solar polycrystalline panels is designed for large electrical power requirements. It is the optimal choice for both on-grid and off-grid power systems. CNBM Solar panel offers high performance of power per square foot of solar array.Poly- or multicrystalline silicon(poly-Si or mc-Si): made from cast square ingots — large blocks of molten silicon carefully cooled and solidified. Poly-Si cells are less expensive to produce than single crystal silicon cells, but are less efficient. US DOE data shows that there were a higher number of multicrystalline sales than monocrystalline silicon sales.

 

Characteristics of Solar Polycrystalline Panels (25W-35W)

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. .

 

Standard Test Conditions of Solar Polycrystalline Panels (25W-35W)

The opto-electrical specifications shown below are stabilized values being measured at Standard Test Conditions of multicrystalline silicon Solar Panel, Irradiance: 1000W/m2, Spectrum: AM1.5 at 25°C, The info below is subject to manufacturing tolerances. Where appropriate minutes of measurement are available and are used for the dimensioning of the installation.

 

Advantages of Solar Polycrystalline Panels (25W-35W)

• CNBM Solar performance guarantees for 25 years

• 2 years guarantee for workmanship for multicrystalline silicon Solar Panel

• Timeliness of delivery

CNBM International Corporation's products including Monocrystalline Solar Panel, Polycrystalline Solar Panel ( multicrystalline silicon Solar Panel) have received and enjoyed famous reputation in many countries and regions in the world .As a solar panel manufacturer in China, we strive to provide our customers with excellent service, superior products and unmatched value. 

 

Characteristics  of Solar Polycrystalline Panels  (25W-35W)

Max Power Voltage Vmp (V)

18.4V

18.4V

18.0V

Max Power Current Imp (A)

1.36A

1.63A

1.94A

Open Circuit Voltage Voc (V)

23.0V

23.0V

22.6V

Short Circuit Current Isc (A)

1.46A

1.74A

2.08A

Max Power Pm (W)

25W

30W

35W

 

Temperature Coefficient of Cells

NOCT

47℃±2℃

Temperature Coefficients of Isc (%/℃)

0.064

Temperature Coefficients of Voc (%/℃)

-0.33

Temperature Coefficients of Pmp (%/℃)

-0.45

 The dimension of the modules can be changed according to the demand of clients

 

Limits

Operating Temperature

–40 °C to +85°C

Storage Temperature

–40 °C to +85°C

Max System Voltage

700V

 

Guarantee of Solar Polycrystalline Panels (25W-35W)

Products Guarantee

2 yrs free from defects in materials and workmanship

Performance Guarantee

No less than 90% within 10yrs and no less than 80% within 20yrs

Certificates

IEC, ISO, TUV, CE

 

The Equipment of Solar Polycrystalline Panels (25W-35W)

Solar Polycrystalline Panels (25W-35W)

 

The usage of Solar Polycrystalline Panels

Solar Polycrystalline Panels (25W-35W)

 

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Q:when building a solar panel should the diode be on the positive or negative side?
I'm assuming you're talking about the blocking diode and not the bypass diodes. Positive side.
Q:_How many solar panels needed to light up a whole house?
It's not really the solar panels that power the house, they charge a battery bank and there's an inverter that jumps the battery power up to household current level. If you start getting into more expensive systems, they can sense when the batteries are full and start diverting power into the local electric grid. Some places the electric company is required to pay you for generating current, other places tell you tough luck. I suggest looking on OKorder or something at some of the home solar kits on sale there and look at how large a house they are rated for to get an idea of how big a system you're going to need. I don't know if you have access to the power bill history of the house you're getting in Dubai, but the power company there might be able to provide you with a history of average kW hours the house consumes. A 2400 sqft house with a gas stove and a gas water heater and wood heat is going to consume far less electricity than a house with all electric appliances and the consumption history of an individual house should reflect that so you can buy appropriately.
Q:can you hand make a solar panel?
The idea is to hand assemble scrap solar cells that would otherwise be thrown out. At one point in time, very few people would want to do this so you could get the broken solar cells for free but now they sell them by the watt. It's still cheaper than a pre-fabricated solar panel but it's very labour intensive. Technically it's like wiring a bunch of batteries together, you measure the voltage and current a broken cell produces and decide whether or not to wire it in series or in parallel with other cells to get the performance characteristics that you want plus try to fit them onto some kind of structural panel in a fashion that uses the space efficiently. Since your handiwork is likely to be fragile, you'll probably have to put some plate glass on top to protect the cells from the elements, you can also improve performance by positioning fresnel lenses to increase the amount of light on active elements versus inactive areas of the panel.
Q:cheapest solar panels sold on line?
If okorder.com/... , cost $75 each. I haven't personally tried that product, but the company has been around for a long time, and is not a fly-by-night. If it has to last, there are dozens of places online that will sell conventional sealed panels. Expect to pay $2.00 a watt on up nowadays.
Q:I need some ideas for a going green program involving solar paneling.?
Give some green to go green.
Q:Anyone here have residential solar panels?
Check out what someone did in Oakley, California - Contra Costa Times 22 June 2007 Going Solar Can Pay Off On The Long Run PGE Electric Power Monthly Bill Before Solar = $,200. Home: 2,900 sq. ft. Installation Cost for 6.7 Kilowatt 36-solar cells $46,000 (minus $7,60 State rebate). New Resources Bank, a “green” bank in San Francisco, lend them a, no-fee, no-points, second mortgage at $200 a month less than their previous monthly payments because of their plan to install solar panels. PGE Current Electricity Monthly Bill After Solar = $7.63 after deductions for any excess power produced by solar cell which PGE.is legally required to buy. PGE has not build any new electric power plants in California for years and their profits do not depend on sales volume, Sen. Feinstein introduced a bill to make this a National Law. Poweful interests are against this, perhaps they are foreign companies that hate Americans? Surely, they are not bona fide, red blooded Americans that love all the people in the U. S. of America, you think?
Q:Cost of Solar Panels for basement?
As Tex said, you have no idea whats involved. Start by looking into some sites that explain how they work and whats involved before asking how much on a small room. And how do you add a basement but not a main floor? and where is the basement roof?
Q:What is the principle of solar panels to convert solar energy into electricity?
scientists have applied solar cells to space technology - communication satellites. At the end of the last century, in the process of human self-reflection, this clean and direct energy form for photovoltaic power generation has become more cordial, Not only in space applications, in many areas also show their talents. Such as: solar garden lights, solar power generation system, the village power supply independent system, photovoltaic pumps (drinking water or irrigation), communication power, oil pipeline cathodic protection,
Q:Are our scientists making solar panels all wrong??
If the panels are deployed at outer surface of atmosphere then white will reflect the sun light to outer space. If the panels are deployed at earth surface, inside the atmosphere, most of the reflected light will be bounced back to earth by the atmosphere. For the solar panels we are talking about, they need to be dark color to absorb light and turn into electricity.
Q:Battery for 2V .5W solar panel?
There okorder.com/ Why pay thousands of dollars for solar energy ($27,000 average cost) when you can build your own solar panel system for just a fraction of the retail cost. You can build a single solar panel or you can build an entire array of panels to power your whole house. Some people are saving 50% on their power bill, some people are reducing their bill to nothing. But what’s most impressive is that just by following these instructions some are even making the power company pay them!

1. Manufacturer Overview

Location Jiangsu, China
Year Established 2004
Annual Output Value Below US$1 Million
Main Markets Australia;Asia;South East Asia; South America;North America; Europe;Africa
Company Certifications ISO 9001:2008; CE; TUV; UL

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Shanghai
Export Percentage 1% - 10%
No.of Employees in Trade Department 200-300 People
Language Spoken: English;Chinese
b)Factory Information  
Factory Size: Above 8,000 Square meter
No. of Production Lines 6
Contract Manufacturing OEM Service Offered;Design Service Offered
Product Price Range Average