300W High Efficiency Poly Solar Panel for Power Plant

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Shanghai
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TT OR LC
Min Order Qty:
100 watt
Supply Capability:
10000 watt/month

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Item specifice:

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

Product Description:

300W High Efficiency Poly Solar Panel for Power Plant

Product Description

300W solar panel/module for on grid solar power plant.

Quality Ensurance:
1. Excellent A Grade solar cell from Motech or Hanwha solar.
2. Excellent backsheet;
3. EVA from Bridgestone / First;
4. Junction box with UL and TUV listed - GZX, IP65;
5. High transmission low iron tempered glass;
6. Solar panels with TUV, CE, ISO9001 certified.

Strong, lightweight aluminum frame design with reinforced sealing and load hold to prevent freezing and warping, and stand against high wind.

Under (STC): Irradiance-1000W/m2, Am1.5 and 25º C cell temperature
Operation Temperature: -40 ~ +85° C
Storage Temperature: -40 ~ +85° C

Mechanical Specification:
Dimension: 1665mm(L) x 991mm(W) x 50mm(H)
Weight: 20.8KG
Polycrystalline: 156*156 mm

Number of solar cells: 72 cells


Why choosing us:
1.Excellent quality, competitive price, prompt delivery, on-time service and good reputation.
2.Fast sample delivery
3.Low minimum order
4.Fast shipment in 15~20 days on receipt of your payment.
5.We are the supplier of  the topest sellers.
6.We offer knowledgeable tech support before and after the sale.
7.We manufacture the complete line of solar modules ranging from 3w to 300w with TUV, and IEC approval, offering the full spectrum sizes,solar panels  are as efficient as other competitors, but far cheaper-without skimping on quality.
8.Solar panels with good performance Promotion every year.

Warranty:
Material and workmanship: Five years

Output of 90% after 10 years , 80% Efficiency after 25 years.

Performance Data
Rated Power(Pm)300W
Power Tolerance(PT)± 3%
Nominal Voltage(NV)37V
Design Life25 years
Electrical Characteristics
Maximum Power            [Pm]300W± 3%
Maximum Power Voltage [Vmp]37V± 3%
Maximum Power Current [Imp]8.11A± 3%
Short-Circuit Current       [Isc]8.64A± 3%
Open-Circuit Voltage       [Voc]44.5V± 3%
Current Temperature Coefficient0.08%/º C
Voltage Temperature Coefficient- 0.32%/º C
Power Temperature Coefficient-0.38%/º C
Maximum System Voltage

1000V

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Q:Reasons for installing solar panels in a school?
You have to approach it as an investment. Ignoring the cost of an inverter for net metering, if we consider a 500 W panel installed for $0 a watt which is $5,000 and consider an average of 8 hours of usable sunlight per day, and at a rate of $0.0 per kWh (schools probably get $0.03 per kWh) then the panel would be saving $2.7 per month in electricity. Considering that the panel has an expected lifespan of 20 years, that would give you an internal rate of return such that the monthly rate satisfies the equation: $5,000 = $2.7 * ( ( - / R^24 ) / ( - / R ) - ) By binary method we get R = 0.99588342. Taking this to the 2th power to annualize it we get Ra = 0.9570 which means that we are getting an annual return of -4.83% per annum so investing in the solar panel is the same as making an investment at an interest rate of -4.83% per year. True interest rates are low and you only get about .3% per annum by putting money in a CD but that still beats investing in solar panels which gives you a negative return on your money. Solar panels need to get a lot better before they are a good investment.
Q:How does solar panel help/affect the economy?
sounds like a homework essay question to me
Q:how to know the voltage level of solar panel?
The voltage rating and current rating are part of the specifications for the panel. You will have them listed on the spec sheet. The voltage number is usually the open circuit voltage of the panel, the voltage with no load. The current number is the short circuit current of the panel. In use, you need special electronics, called a Maximum Power Tracker (MPT) controller, which adjust the load to get the most power from the panel, and adjust the voltage output via a DC-DC converter to the optimal conditions to charge the attached battery. how to take batteries as per solar wattage ? sorry, don't understand this.
Q:solar panels for my home.?
Either you, or someone else, asked this same question yesterday, and the answers given were that it is not possible for us to answer it. The costs depend on where your home is located, what prevailing local labor rates are, how difficult it is to get the equipment to the site, etc, etc. I think one of the answers was that for a 3 bedroom, 2 bath house the cost for all the necessary equipment listed would be in the neighborhood of 20 to 30 THOUSAND DOLLARS. I think that was an underestimate, and that it could be 40 to 50 THOUSAND!!!!! The answerer also pointed out that due to the exorbitantly high costs of the technical equipment that at this time the equipment will wear out BEFORE IT EVER CAN PAY FOR ITSELF IN SAVINGS for on the grid electricity. I agree with that. You need to discuss your wants with 3 or 4, even 5 or 6 LOCAL ELECTRICAL CONTRACTORS to get a reasonably accurate estimate of the costs!!!!!!
Q:It's all about Solar Panels?
A 35 Watt Solar Panel cost between 400 and 500 depending on where you make the deal. I live full time in an RV and I get all my electric from the Sun. I am sold on solar but I move around to places, according to the season, where I will have full sun most of the time. I also have a small generator as a back up but rarely use it. The amount of direct sun and angle of the panels will determine how efficient they are. For some one living in an apartment with only a few hours of sun then solar would not be good for them.
Q:Can you connect a solar panel to a regular plug, using copper wire?
NO NO you will cause a fire and lots of damage. Do not play with the power from a wall outlet. Outlets supply 20 or 240 volts AC Your solar panel supplies low voltage (perhaps 2 volts) DC. The two are totally incompatible. Speakers require no power, just the audio signal from a power (audio) amplifier. .
Q:Solar Panel House?
yahoo store online
Q:Why are solar panels effected by operating temperature?
For water heater type of solar panel the hot panel has more radiation losses reducing the heat available to be transferred to the water. In PV panels it has got to be characteristics of the PV cells. If the conversion efficiency drops with temperature rise then only this can happen. PV=photo-voltaic
Q:Connect Power Outlet to Solar Panel?
The least expensive way would be to get a 500 W or preferably a higher rated UPS. The higher the rating, the more robust the inverter. You can get two year old ones cheap because most people don't realize that it's just a $2 battery that goes bad every two years. Get some Car batteries in parallel to build up more capacity. Deep cycle marine batteries or golf cart batteries are best. Connect the Solar Panel to the batteries via a FET diode, assuming your solar cells are wired to produce 2 V or better power (you probably would want at least 8 V), this is to charge the batteries when the sun is shining. A little bit of analog circuitry magic can create a current limiter based on a Darlington pair type layout. Connect the batteries to the rest of the UPS (don't plug it into the wall) and you can run 0 V 60 Hz AC devices off it's outlets. You may want to snip the wire going to the speaker so you won't hear the alarm. There's no way you could sync this to the grid so don't even try a grid tie in and the inverter in the UPS is only intended to run for 0 to 20 minutes so it may burn out however we've run UPS inverters constantly for months before when we needed a cheap power converter to change AC power frequencies before.
Q:How much power does the solar panel produce?
Area is 4' * 2' * (0.3048m/ft)^2 = 0.743m^2. Incoming solar (assuming optimally oriented panel) averages about kW/m^2, so 743W max gross. 4% efficiency yields 300W. Most panels are about 0% - 5% efficient, which is about W. In either case, figure about /2 the theoretical efficiency for about 2 hrs per day. so, you can run something from 50 to 50W about 2hrs per day. Too small for any appliance except maybe a laptop or light bulb. Panels typically make about 2V, not enough to run household stuff anyway. Normally panels are used to charge batteries, then an inverter takes power from the battery to run your appliances. Good luck!

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