Polycrystalline 300W Solar Panel for Sale

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
10000 watt
Supply Capability:
1000000 watt/month

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Item specifice:

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

Product Description:

Product Description

Produt name: 300W Poly Crystalline Solar Panel

Polycrystalline 300W Solar Panel for SalePolycrystalline 300W Solar Panel
Specs

Electrical Characteristics
Maximum Power [Pmax]300W
Power Tolerance+/-3%
Maximum Power Voltage [Vmp]36.1V
Maximum Power Current [Imp]8.32A
Short-Circuit Current [Isc]8.73A
Open-Circuit Voltage [Voc]44.8V
Module Efficiency15.46%
Max. System Voltage1000VDC
Cell Size and SeriesPoly 156*156  72pcs (6*12)
Temperature Coefficient of Pmax- 0.47% / º C
Temperature Coefficient of Voc- 0.33% / º C
Temperature Coefficient of Isc0.05% / º C
Mechanical Characteristics
Dimension (mm)1956*992*45
FrameAnodized Aluminium Alloy
Glass3.2mm,High Transmission,Tempered Glass
Junction box & CableIP65 Rated weatherproof connectors
Cable: TUV 1x4.0mm2 / UL12AWG,Length:900mm
Weight22.0Kgs

Industry-leading Warranty:
Warranty on material and workmanship: 10 years
Guaranteed output of 90% after 12 years and 80% after 25 years.

FAQ

1.Price per watt?

It depends on the quantity, delivery date and payment terms.

2.Parameter of the module?

We have different series of panels in different output, both c-si and a-si. please take the specification sheet for your reference.

3.Can you provide the peripheral products of the solar panels, such as the battery, controller etc.?

We have two companies(CNBM International & CNBM engineering Co.) with different approaches. We can supply not only the solar module but also Solar Cells, off grid solar system, even service with on grid plant.

4.Warranty policy?

Our product performance guarantees for 25 years

• 12 years guarantee for workmanship

• Timeliness of delivery

• Quality Products certified (TÜV, UL, CE, ISO)

5.Lead time?

In 3 days after purchasing, we will arrange the factory delivery ASAP. The specific time of receiving is related to the state and position of customers. Commonly 7 to 10 working days can be served.

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Q:solar panel regulator?
wire them in series parallel to get 8 volts at 200 mA, and that should charge a 2 volt battery. You may want to put in a series diode to prevent the battery from discharging into the panel when the sun is out. At 200 mA, depending on the battery size, you may not need much control, as that low a current will not overcharge a large battery, like a small auto battery. In fact it will take a very long time to charge it. edit: But do i need to add a regulator? If by that you mean a voltage regulator, no, as a solar panel has a high output resistance, and that will limit the current into the battery. If you mean a charge controller, if the battery is small, you may need a charge contoller to avoid overcharging the battery. But that is not a voltage regulator. .
Q:Solar Panel questions...?
Just think about it and don't do it unless Ontario and the Utility companies give a huge rebate. Forget tax credits. Solar voltaic panels generate electricity...it will take more than 20 years to break even...assuming they last that long. Solar panels that generate hot water may be OK but will take about 0 years for a payback.
Q:Do solar panels go bad if not used?
Build okorder.com/
Q:Can cold light make solar panels power
light - heat - dynamic - electric conversion method through the use of solar radiation generated by thermal power, usually by the solar collector will absorb the heat energy into the refrigerant, and then drive the turbine power generation. The latter process is the light-heat transfer process; the latter process is the heat-to-conversion process, which is the same as the conventional thermal power generation.
Q:Run a air conditioner off solar panel?
This Site Might Help You. RE: Run a air conditioner off solar panel? Can someone tell me if I can run a air conditioner off solar panel? I have a ET-P65420 20Wp solar panel. What do I need to make it work? I am told I will need a Enphase Energy Microinverter M20. Is that true? I am looking to run a 5000 to 8000btu air conditioner to a max of 0000btu air...
Q:Maintenance of Solar Panel?
New solar panels are clean and shiny and they look cool. Then they get dirty with dust and debris caught on the wind and residues left behind by rain and birds. Solar panels must be regularly cleaned and maintained in order to keep them operating efficiently and maximize the amount of sunlight they convert into electricity. Unlike windows your solar system needs to have a clean and clear surface to ensure they are working at their maximum efficiency. If they are not at their optimum performance it means they are not producing the amount of electricity that they could be. Solar panels will attract dirt, dust, soot, pollen, tree sap and salt crystals in coastal regions creating a fine layer of grime. This layer reduces the amount of light reaching the silicon cells under the glass surface and reduces the panel's effectiveness. A solar panel that has never been cleaned could be producing almost a third less power than it otherwise could be. Some have reported a ten to fifteen percent loss of solar output due to dirty panels. From the ground the panels may appear to be clean, just like your windows. Up close however you can see the grime that has built up from the dirt and pollution in the air. A more noticeable deposit that can be left on panels is bird droppings. These tend to completely block the light from areas of the photovoltaic panel and can considerable reduce its effectiveness. See much more about solar panels maintenance below link
Q:how much do commercial solar panels cost?
The size you pick, therefore, should be decided on per your requirements. A 4kw system will need between 0 and 20 solar panels, with an initial cost of around £7,000 for the module and installation. Systems larger than 25kW can't be accommodated on existing buildings. Instead this option is for those of you with vacant land, a location such as a farm or another open space.
Q:How many LED's can power a solar panel?
I okorder.com/
Q:Can I get free solar panels?
Do not touch free solar panels with a barge pole. The installer keeps the feed-in tariff and owns the panels on your roof, a problem when you come to sell the house. Your only benefit is the free use of the electricity generated, if you happen to be in, or use time clocks, on dish washer, washing machine etc. My system has a target of 6 kWh per day. At 43.3p per unit this is a theoretical payment of £6.92 a day. All you could gain, assuming you use every available kWh generated, would be £.92, assuming a tariff of 2 p per kWh. The feed-in tariff goes down for new installations next April. In my opinion its a good buy, and should show an 8% return on our investment. I would not like to give the main benefit to someone else.
Q:Solar Panel Help Please!?
I will give you the tools to answer your own question. Here is the solar resource map: rredc.nrel.gov/solar/old_data/nsr... Use it to look up the hours of peak equivalent sunlight per day in your area. For example, let's say it's 5 hours / day. Then per year you get 365 x 5 = 825 hours of sun Your panel is 20 watts, or 0.2 kW So the energy produced per year is 825 x .2 = 383 kWh You'll have to use the proper numbers for your own area, of course. Anyway, you can take that 383 kWh and determine how much it would cost at local electric rates. Never know, on some islands, it's $.00 per kWh. Check with your local electric company for rates.

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