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300W Solar Panel Purchase from China Manufacturer

300W Solar Panel Purchase from China Manufacturer

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
2500 watt
Supply Capability:
10000000 watt/month

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Item specifice

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

Solar Module Summarize

Solar Module is the core part of solar PV power systems, also is the highest value part of it. The function of Solar Module is to convert the sun's radiation to electrical energy, or transfer it to battery and store in it, or to drive the load running.
The Product has been widely used in space and ground, it mainly used for power generation systems, charging systems, road lighting and traffic signs areas. It could offer
a wide range of power and voltage, and with high conversion efficiency, and long service life.

Technical Parameter:

Model Type

Good   Quality 185W Solar Panel

Peak Power-Pmax(W)

185W

Open Circuit Voltage-Voc(V)

44.2

Maximum Power Voltage-Vmp(V)

36

Short Circuit Current-Isc(A)

5.4

Maximum Power  Current-Imp(A) 

5

Maximum System Voltage

1000V DC

Maximum Series Fuse Rating

10A

Power Tolerance

 -1~+3%

Temperature Coefficients of Pmax

 -0.45%/

Temperature Coefficients of Voc

 -0.348%/

Temperature Coefficients of Isc

0.031%/

Nominal Operating Cell Temperature

44.5±2

Standard Testing Condition(STC)

Irradiance:1000W/m²;Temperature:25;AM=1.5

Qualification Test Parameters


Operating Temperature

 -40~+85

Storage Temperature

 -40~+85

Pressure Bearing

≥5400Pascal/m²

Wind Bearing

≥5400Pascal/m²

Mechanical Characteristics


Cell Size

Mono 125*125mm±0.5

No.of Cells

72pcs(6*12)

Dimension

1580*808*40mm

Weight

15.5Kg

Glass

3.2mm High Transmission,Low Iron

Frame

Anodized Aluminum Alloy

Junction Box

IP65Rated

Internal Diodes

3 Bypass Diodes

Cable

1*4.0mm² Length 900mm

Production Flow : 

300W Solar Panel Purchase from China Manufacturer

Product Show:

300W Solar Panel Purchase from China Manufacturer

300W Solar Panel Purchase from China Manufacturer

300W Solar Panel Purchase from China Manufacturer

Warranty

Good Quality 185W Solar Panel Manufacture from China

For c-Si panel: 25years output warranty for no less than 80% of performance, 10 years output warranty for no less than  90% of performance. Free from material and workmanship defects within 5 years.

For a-Si panel: 20 years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 2 years.

Q:Can solar panels be used on a backpack or portable device?
Yes, solar panels can be used on a backpack or portable device. These panels are designed to be lightweight and flexible, making them ideal for use on backpacks or other portable devices. They can convert sunlight into electricity, allowing you to charge your devices on the go, making them a convenient and environmentally-friendly option for powering your portable devices.
Q:On how to connect a solar panel to a battery and then to a lightbulb,the project is offgrid..
But be aware that building your own panels will cost more than simply buying ready-made ones. This was not always true, but it is today. As you can see, this kind of information is widely available for free. Beware of scam sites that have a slick pitch making unrealistic promises, trying to sell you an e-book or video of the same stuff.
Q:Can anyone give me some info on how to figure how many panels needed for a 0 volt 2 amp pool motor. Thanks/ Run 5 hours a day
You okorder /
Q:If this was sold back to the grids what would be the profit i would stand to make per day on energy received in these panels? How did you come up with this answer?
I'm putting in a $00,000 solar wind project on ST Thomas, Virgin Islands so I have some experience here..... ) depends on where you are...the further north the less efficient the panels are because early morning and late afternoon sun hitting at a great angle isn't anywhere near as good as noon hitting perpendicular..........the US Department of Energy has a solar calculator showing how many hours a day over the year you get enough sunlight to actually run the panels....in the Caribbean the answer is 6 so in Wisconsin you might only get 4 really usable hours a day, Nevada 5, Seattle...forget about it..... 2) the panels I'm putting in are ( roughly) 2 x 3 feet...you would need access around all four sides of a panel...you are NOT going to crawl 35 feet across an array to fix a unit in the middle......so lets say you get 35 panels tall ( 70/2) by 2 wide (3 foot with a 3 foot access area between each row = 72/6) or 420 panels. Each puts out 75 watts at max. So you are cranking out 73,500 watt hours, or 73kW. If your local utility buys back ( net metering ) the juice at, say, 20 cents a kWh, you get $4.75 an hour. If you have 4 usable hours a day x 365 x $4.74 you get back something like $20,000 a year. You pay about $7.00 a watt for a panel. The 75 watt panels are, rounding up, $200. each. Times the 420 panels number is $475,000 dollars. Add in about $2,000 for the inverter to change panel volts to power company volts, and maybe another $20,000 for installation you are looking at $500,000 AT LEAST to put in the system you propose. AT $20,000 a year in sales, its 20-25 years payback. Now, you can play with these numbers up and down but you still get the answer of A LOT of money to buy and build and a LONG time till payback.
Q:Can solar panels be used for air conditioning?
Yes, solar panels can be used to power air conditioning systems. Solar panels generate electricity from sunlight, which can be used to operate air conditioning units. This allows for cooling without relying on traditional electricity sources, reducing energy costs and environmental impact.
Q:The intensity of sunlight at the distance of the Earth's orbit is 380 W/m2. An Earth-orbiting satellite has a solar panel that measures .35 m by 4.86 m, which converts solar energy to electrical energy with an efficiency of 26%. In one hour, how much electrical energy does the panel produce? Assume that the satellite's attitude control jets keep the panel oriented perpendicular to the incoming sunlight.
380 W/m2. An Earth-orbiting satellite has a solar panel that measures .35 m by 4.86 m, which converts solar energy to electrical energy with an efficiency of 26%. In one hour, how much electrical energy does the panel produce? 380 W/m? x .35 m x 4.86 m x 0.26 = 2354 watts energy is watts*time E = 2354 watts x 3600 sec = 847472 Joules or, E = 2354 watt-hours
Q:Can solar panels store excess energy?
No, solar panels themselves cannot store excess energy. However, energy generated by solar panels can be stored in batteries or other storage systems for later use.
Q:Can solar panels be used in conjunction with wind turbines?
Yes, solar panels can be used in conjunction with wind turbines. This combination is often referred to as a hybrid renewable energy system. By using both solar panels and wind turbines, it allows for a more reliable and consistent energy generation, as they can complement each other during different weather conditions.
Q:My hubby and I are waiting to move in to our camper but have to figure out how many solar panels, batteries, etc. to get. I can't find the info per appliance for Watts and amps, but does anyone have a good, general idea of how many Watts it'd take to run the whole shabang? It's a 999, 25-foot Sportsmen tag-a-long, if that helps..It's got the following, and we'd like to run the propane things off of electric:*Refrigerator/freezer*Microwave*Oven/stove*AC/Heat*Will have a tv, phone chargers, laptop charger, but those will be unplugged when not in useThanks so much! It's such a headache.. You get SO MUCH different info from different places.. OI..
whenever i do my gf, i use up to 900 watts of power
Q:Can solar panels power my entire home?
Yes, solar panels can power your entire home. However, the feasibility of this depends on various factors such as the size of your home, the amount of sunlight available in your area, the efficiency and capacity of the solar panels, and your energy consumption patterns. It is recommended to consult with a professional to assess your specific needs and design a solar system that can meet the energy requirements of your entire home.

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