• 300w Poly Solar Panel Medium Solar Panel Factory Directly Sale CNBM - Solar Panels Los Angeles System 1
  • 300w Poly Solar Panel Medium Solar Panel Factory Directly Sale CNBM - Solar Panels Los Angeles System 2
300w Poly Solar Panel Medium Solar Panel Factory Directly Sale CNBM - Solar Panels Los Angeles

300w Poly Solar Panel Medium Solar Panel Factory Directly Sale CNBM - Solar Panels Los Angeles

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Loading Port:
Qingdao
Payment Terms:
TT OR LC
Min Order Qty:
10 set
Supply Capability:
300000 set/month

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Polycrystalline Solar Modules

CNBM offers a range of small, medium and large polycrystalline solar modules, designed for a range of requirements.

 

 

300W  Poly solar Panel Medium Solar Panel Factory Directly Sale CNBM

300W  Poly solar Panel Medium Solar Panel Factory Directly Sale CNBM

Specifications:

Tolerance

+/-3%

Cell

Polycrystalline silicon solar cells (156 x 156mm)

N0. of Cells

60 (10 x 6)

Dimension of Modules (mm)

1650 x 990 x 40

Weight (kg)

25.5

Limits:

Operating Temperature

-40~+85?

Storage Temperature

-40~+85?

Maximum System Voltage

1000 VDC max.

Hail Impact

Diameter of 28mm with impact speed 
of 86km/h

Temperature and Coefficients:

NOCT

48C+/-2?

Voltage temperature coefficient (%/K)

-0.35

Current temperature coefficient (%/K)

0.05

Power temperature coefficient (%/K)

-0.45

Characteristics:

Model:

SGM-200P

SGM-210P

SGM-220P

Max-power voltage Vmp (V)

29.2

29.4

29.41

Max-power current Imp (A)

6.85

7.14

7.48

Open-circuit voltage Voc (V)

36.5

36.69

36.9

Short-Circuit Current Isc (A)

7.28

7.6

7.93

Max-power Pm(W)

200

210

220

 

Model:

SGM-230P

Max-power voltage Vmp (V)

29.8

Max-power current Imp (A)

7.72

Open-circuit voltage Voc (V)

37.31

Short-Circuit Current Isc (A)

8.19

Max-power Pm(W)

230

STC: Irradiance 1000W/m2, module temperature 25?, AM-=1.5

Poly Crystalline Solar Panels Specifications Range

Maximum Power (Pm)

Dimension

Weight

Operating Voltage (Vmp)

Operating Current (Imp)

Open Circuit Voltage (Voc)

Short Circuit Current (Isc)

0.45W

140x80x10mm

0.08kg

3.3V

150mA

4.6V

160mA

1.0W

162x140x10mm

0.16kg

7.5V

150mA

10.3V

160mA

4.5W

269x251x23mm

0.8kg

16.5V

0.27A

20.5V

0.3A

10W

420.1×268.9×22.6mm

1.92kg

17.5V

0.58A

20.5V

0.6A

20W

425x502x50mm

3.0kg

16.8V

1.19A

21.0V

1.29A

30W

593x502x22.6mm

3.9kg

16.8V

1.78A

21.0V

1.94A

40W

655x537x50mm

5.75kg

17.3V

2.31A

22.1V

2.54A

50W

839x537x50mm

6.0kg

17.5V

2.9A

21.8V

3.17A

65W

1111x502x50mm

7.2kg

17.6V

3.69A

22.1V

3.99A

80W

1204x537x50mm

7.7kg

17.6V

4.55A

22.1V

4.8A

 

Q: I'm about to buy one but I don't really know which one is best for my home.
Talk okorder has good info. What state are you in?
Q: Do solar panels require regular inspections or maintenance checks?
Yes, solar panels do require regular inspections and maintenance checks to ensure optimal performance and longevity. These inspections typically include monitoring the panels for dirt, debris, or shading that may reduce their efficiency, as well as checking the electrical connections and wiring for any issues. Additionally, ongoing maintenance such as cleaning the panels and replacing any faulty or damaged components is essential to keep the system operating efficiently.
Q: what is one benifit in a solar panel?
In the UK, the only real benefit comes from the subsidies given to owners of solar panels. I believe the same is true elsewhere in the world. I suppose smugness might be a benefit though it is not justified.
Q: When you get solar panels do you connect them to the grid?
Sort of. They need to be connected to an inverter that changes the solar panel's DC electricity into AC electricity and it has to be synchronized with the phase of the power grid's AC. It must be done by a licensed electrician.
Q: I want to add solar panels to my home. I was looking online and it seems there are so many different kinds! How does it hook up to the electrical grid? How much do I need for a 2000 sf home?
Everyone is looking into renewable energy these days and many are looking to solar energy. The sun gives us a lot of energy that solar panels help us to use for our energy needs. Best of all, this energy is free! All you need to do is install your own solar panel. It is best to install solar panels to a rooftop before the house is roofed.
Q: I thought that I had a fairly good understanding of watt's law, but i'm starting to doubt myself.If I have a load of 4500watts at 240 volts, how many watts of solar panels do I need, if the solar panels are at 2v?Yes, Yes... I have a charge controller, batteries, etc...So the way I looked at this at first:watts = volts * amps For the load4500 = 240 * xx would be 8.75aFor the power source (each solar panel)00 = 2 * xx would be 8.3a8.75 / 8.3 = 2.25, rounded up = 3So... based on that I came to the conclusion that I needed 3 solar panels...But... then I was thinking. Does it work that way?Or do I need 4500 / 00 = 45, aka 45 solar panels?In other words...If I have a 2v power source, how many watts do I need to drive a load of 4500w at 240v?ThanksMatt
You okorder / Solar Pro Magazine another of their publications
Q: 3.8 volts is required to fully charge a battery. But at 3.8 volts, the battery can be overcharged without the use of a controller correct? What if I don't care if the battery is fully charged? In the case of our family boat, I just installed a new radio, so I'm a little worried about power consumption. So now for the real question; If I hook a 2 volt panel to the batteries, do I need to worry about overcharging them? Or will the batteries stop the charging process once they reach 2 volt?I built the panel myself, it's 8 volts at 3.5 amps open circuit. I have tabs at every 3 volt increment on the panel so that I can use less voltage than 8 if I want to power something directly, (ex:2 volt radio)So I'm using the 2 volt tab at 3.5 amps(approx) for a total of approx 48 watts
I have been using solar panels for over ten years never until recently bothered to use a charge controller, it depends really on how much power your batteries can hold how often they will be drained from use of the connected dc-ac inverters. While constant daylight charging at 8v 3.5a/hr is quite heavy it is not excessive, 2v lead acid battery chargers give a voltage output of appx 4.8v but the fluctuating output of a solar panel means you may well charge at 8v for some time but with occasional shade etc it will more likely average at 5v which I think is quite acceptable.
Q: Can solar panels be installed on a pergola or gazebo?
Yes, solar panels can be installed on a pergola or gazebo. Both structures provide an ideal location for solar panel installation, as they offer unobstructed exposure to sunlight. Additionally, integrating solar panels into a pergola or gazebo can enhance their functionality by providing shade, while generating renewable energy at the same time.
Q: How do solar panels generate electricity?
Solar panels generate electricity through the photovoltaic effect, where sunlight is converted into electricity. When sunlight hits the solar panels, the photons in the sunlight knock electrons loose from their atoms, generating an electric current. This current is then captured and converted into usable electricity for powering homes and businesses.
Q: Can solar panels be installed on tile roofs?
Yes, solar panels can be installed on tile roofs. Specialized mounting systems are designed to secure the panels to the tile roof without damaging it, ensuring a safe and efficient installation.

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