• 250 Watt A Grade PV Solar Panels for Sale - Poly 300W Solar Panel Price System 1
  • 250 Watt A Grade PV Solar Panels for Sale - Poly 300W Solar Panel Price System 2
  • 250 Watt A Grade PV Solar Panels for Sale - Poly 300W Solar Panel Price System 3
250 Watt A Grade PV Solar Panels for Sale - Poly 300W Solar Panel Price

250 Watt A Grade PV Solar Panels for Sale - Poly 300W Solar Panel Price

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
100 watt
Supply Capability:
100000 watt/month

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Specification

Material:
Polycrystalline Silicon
Max. Power(W):
300
Number of Cells(pieces):
72

Poly 300w solar panel price A grade PV panels


Technical Data:

 STCBSM280P-72BSM285P-72BSM290P-72BSM295P-72BSM300P-72BSM305P-72BSM310P-72
Maximum Power280W285W290W295W300W305W310W
Module Efficiency14.45%14.71%14.96%15.23%15.49%15.74%16.00%
Maxi Power Current 7.78A 7.90A 7.97A8.06A8.15A8.25A8.37A
Maxi Power Voltage35.99A36.08A36.39A36.60A36.82A36.97A37.04A
Short Circuit Current8.29A8.39A8.42A8.48A8.53A8.60A8.69A
Open Circuit Voltage45.3A45.41A45.72A45.90A46.08A46.20A46.32A
Power Tolerance0~+5W

Mechanical Characteristics:


Cell Type                                                     Polycrystalline 156x156mm,72(6*12)pcs in series 
GlassHigh Transmission,Low Iron,Tempered Glass
Frame                           Anodized Aluminium Alloy
Junction box                                                     IP65/IP67 rated,with bypass diodes
Dimension1960*990*40/45/50mm     
Output Cable                                     4mm2(EU)/12AWG(US),1000mm²
Weight                         27Kg
Installation Hole LocationSee Drawing Above
No.of Bypass Diodes6


Packing Information:

Container

20'GP

40'GP

40'HQ

Pallets   per Container

12

28

28

Pallets   per Container

300

700

770


Poly 300w solar panel price A grade PV panels

More Product:

Mono Solar Panel

10W/20W/30W/40W/50W/60W/70W/80-110W/130-160W/170W-

210W/240-270W/270-310W

 

Poly Solar Panel

10W/20W/30W/40W/50W/60-70W/80W-110W/130-160W/230-260W/270-310W

 

On-grid Solar System

1kw/2kw/3kw/4kw/5kw/6kw/7kw/8kw/9kw/10kw

 

Off-grid Solar System

1kw/2kw/3kw/4kw/5kw/6kw/7kw/8kw/9kw/10kw

 Hybrid Solar System

3kw/5kw/6kw/8kw/10kw

 

 

 Solar Plant

100kw/500kw/1MW/2MW

 

FAQ:

1. What's brand of this solar panel?

Answer : Soular solar. We are the manufacturer of this panel, OEM service is available, wholesales is welcome.

2. We need your pricelist for all the models ?

Answer : we dont present "pricelist" for a new customers, Because different order quantity, different  quality grade has different pricelist; right now, we can produce  solar panel from 3w to 300w for both poly & mono panel.

Attn. : You can just inform us your "target price" and detailed requirement , we will evaluate if we can produce for you.

3 . Our common questions for the new customer's inquiry :

(1) How many pcs solar panel do you need ?

(2) Which type do you need, Poly or Mono ?

(3) What is your requirement on the power, Voc, Isc, Vm, Im ?

(4) Which transportation way will you select ? by air ? by Sea ?




Q:How do solar panels impact the electrical grid?
Solar panels impact the electrical grid by generating clean and renewable energy from sunlight. When connected to the grid, they can feed excess electricity back into the system, reducing the overall demand for fossil fuel-based power generation. This helps to lower greenhouse gas emissions and dependence on traditional power sources. However, the intermittent nature of solar power requires careful grid management and integration to ensure stability and reliability.
Q:Do solar panels require a specific type of wiring or electrical setup?
Yes, solar panels require a specific type of wiring and electrical setup. They need to be connected in series or parallel to form an array, and the wiring should be designed to handle the direct current (DC) generated by the panels. Additionally, an inverter is typically used to convert the DC electricity into alternating current (AC) for use in the electrical system of a building or to be fed back into the grid. It is important to follow electrical code requirements and consult with professionals when installing solar panels to ensure a safe and efficient setup.
Q:How do solar panels affect the appearance of a home or building?
Solar panels can have a positive impact on the appearance of a home or building by adding a modern and eco-friendly aesthetic. While they may alter the traditional appearance slightly, the sleek and futuristic design of solar panels can often enhance the overall visual appeal of the structure.
Q:I don't have a regulator connected as they are a little expensive for a pensioner, If I join the panels into line to the battery bank from the roof should that be OK.?
I am pretty darn sure you need the regulator because all the advertising says that you must have one if you have more than one small solar panel. I think you can overcharge your batteries otherwise. Solar power is still not cost effective, so most people have solar power because they care about the environment more than they care about expenses. If you are poor, it is better to skip solar power, unless you are in an area where there isn't access to electricity. For example, we have a cabin without electricity. I am a strong environmentalist, too. Solar power is too expensive still, for low income people. It is better to focus on energy conservation, imo. such as change your roof to white, to save on A/C, as the head of the US energy dept. says (he is a nobel prize winning physicist). PS Dave might be right on that stuff, i don't know. but all the ads say you need a regulator if you are going to have more than one solar panel so I assumed this was due to risk of overcharging.
Q:ok so when a solar panel is marked as a certain wattage dose that mean it makes that much in a day in an hour or constant, dose it still work at night or what ? is it worth it or is it more of a pain? can some one tell me what all the watts and volts mean ?? and can some one tell me what a kilowhat is in refrence to some thing i understand like howmany loads of laundey can you do wt a watt? i need help understanding this stuff?
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Q:Can solar panels be installed on a billboard or signage?
Yes, solar panels can be installed on a billboard or signage. This allows for the generation of renewable energy and can help to offset electricity costs for the billboard or signage. Additionally, it promotes sustainability and reduces the environmental impact associated with traditional energy sources.
Q:Just curious.
Solar panels are built with light-sensitive panels. These panels soak up the energy from the sun's light. This energy is changed to electric power. This power is stored in batteries to use whenever / wherever it is needed.
Q:Can solar panels be installed on a remote island or location?
Yes, solar panels can be installed on a remote island or location. Solar panels are a versatile and sustainable energy source that can be easily installed in off-grid areas. They do not require a constant supply of fuel or a connection to the main power grid, making them ideal for remote locations where traditional energy sources are scarce or expensive to transport. Solar panels can provide reliable electricity to power homes, businesses, and infrastructure, allowing remote islands or locations to become more self-sufficient and environmentally friendly.
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 :) !
So what do higher temperatures do to solar photovoltaic panels? As temperatures rise, the efficiency of solar panels decreases. Heat causes electrical resistance to the flow of electrons. On days where the temperature is more than 75 degrees, the electrical resistance makes the voltage fall thereby producing less kilowatts per hour. Your roof is much hotter than temperatures on the ground. That’s why solar panels are not mounted flat to a roof. There’s usually a few inches of spaces between the panels and roof so air flow can easily pass through and cool the panels down. There are some photovoltaic panels that are designed specifically to operate in hotter temperatures. These panels have a higher temperature coefficient. This is especially important in high heat climates like Arizona or New Mexico, but probably wouldn’t make too much of a difference in New England (except maybe this year). If you do live in one of these areas, you should speak to your solar installer to make sure they are using they right equipment for your region. Please note: Solar thermal panels used to heat water can withstand high temperatures without any degradation. In fact, hotter temperatures would actually be better for these types of modules.
Q:Would like to know if the DIY Solar panel systems can be as efficient as a commercial grade panel.
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