290W/295W Solar Panel Polycrystalline Silicon Certificated

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1000 watt
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100000000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 295 Number of Cells(pieces): 64

Product Description:

290W/295W Solar Panel Polycrystalline Silicon Certificated


- TUV IEC, MCS (UK), CE, CEC (Australia), INMETRO, IDCOL, SONCAP CERTIFIED

- [EU ANTIDUMPING DUTY-FREE] 

- PROFESSIONAL SOLAR PANEL MANUFACTURER SINCE 2004 

 

FEATURES

`Long Service Life

`High Efficency Solar Cells

`Special Aluminum Frame Design

`High Transmission,Low Iron Tempered Glass - TUV IEC, MCS (UK), CE, CEC (Australia), INMETRO, IDCOL, SONCAP CERTIFIED

- [EU ANTIDUMPING DUTY-FREE] 

- PROFESSIONAL SOLAR PANEL MANUFACTURER SINCE 2004 

 

FEATURES

`Long Service Life

`High Efficency Solar Cells

`Special Aluminum Frame Design

`High Transmission,Low Iron Tempered Glass

`Advanced Cell Encapsulation

 

APPLICATIONS

`Solar power stations

`Rural electrification, Small home power systems

`Power supply for traffic, security, gas industry

`12V and 24V battery charging system

`Other industrial and commercial applications

 290W/295W Solar Panel Polycrystalline Silicon Certificated


ELECTRICAL CHARACTERISTICS 
Model Number                           
KM(P)275KM(P)280KM(P)285KM(P)290KM(P)295KM(P)300
Maximum Power as per STC     Pmax(W)275280285290295300
Power Tolerance                        %±3% 
Maximum Power Voltage            Vm(V)36.4336.5636.7236.7936.9337.15
Maximum Power Current             Im(A)7.557.667.777.897.998.08
Open Circuit Voltage                  Voc(V)43.742.9244.0644.2144.3544.5
Short Circuit Current                  Isc(A)8.18.178.238.338.418.72
Maximum System Voltage           VDC1000
Cell Efficiency                            %15.716.016.316.616.817.1
Module Efficiency                  %14.214.514.715.015.215.5
Cells per Module                         Pcs72
Cell Type                                     
Polycrystalline silicon
Cell Size                                       mm156 x 156 
Bypass Diodes                             Pcs12Amp, 6 pcs
Max. Series Fuse Rating              A15A
Temperature coefficient of Isc      %/°C0.05
Temperature coefficient of Voc    %/°C-0.35
Temperature coefficient of power %/°C-0.47
NOCT- Nominal operating cell temperature °C47 ± 2
Operating Temperature              °C-40 ~ +85
MECHANICAL CHARACTERISTICS 
Dimensions                      mm1954 x 990 x 50
Weight                                       Kg23.5
Type of Junction Box                 
TUV certified, IP65
Cable Type, Diameter             
TUV certified, 4mm2, 90 cm in length
Connector                                  
compatible to Type 4 (MC4)
Tempered Glass                    
3.2 mm, high transmission, low iron

290W/295W Solar Panel Polycrystalline Silicon CertificatedPacking 

290W/295W Solar Panel Polycrystalline Silicon Certificated

FAQ

1. What kind of Solar Cells does it have

---poly crystalline 156*156mm and 125*125mm or mono 125*125mm and 156*156mm

 

2. Is the front panel Glass or Plastic

---Tempered glass 3.2mm thickness or adjust to what you need, Light transmittance up to 95%.

 

3. Does it meet Europe Standards for Solar Energy

---This is TUV approval products, all the producing procedure apply TUV&UL.

 

4. What is the Efficiency level

--- Between 16-18.9% for solar cells.

 

5. What is the Nominal Voltage

--- 18v 20v 24v 36v 30v 48v , and so on, we can adjust to what you need.

 

6. What is the Warranty Period, How many years?

Power efficiency warranty:

---90% in 10 years; 80% in 25 years.



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Q:Solar Battery System?
A solar panel is usually 36 cells and intended to charge a 2V lead acid battery. The battery in laptops may be somewhere between 5 and 20V. The panel might charge a laptop when it is cold, but they heat up in the sun and then it would no longer charge. Typical lap top power supplies are 3 to 4 amps. You need 2 panels in series to get enough voltage to charge the battery directly, but this is wasteful. If you want to charge at the same rate as a lap top power supply you need large panels to provide 5 amps. The 5 Amp panel will only give 5A when pointed directly at the full sun. There may be between 2 and 5 hours a day equivalent full sun depending where you are, time of year. If you want more than that, you need larger panels, or more than one in parallel for a 2V system. It makes sense to charge a 2V battery with the solar panel, and use that to operate the lap top with a car type power supply for a laptop, which runs from a 2V battery (see link below for an example). Get the biggest panel you can afford, and the battery should be larger if you want to run the lap top when the sun isn't shining. Perhaps a 20AH battery is a minimum size. All this costs more than a lap top.
Q:how the power output of solar panels fitted to a house can charge?
Solar panels do NOT get charged, so the question is junk, or you misstated it. Solar panels are used to charge a battery bank, which stores energy for times when there is no sun. Then energy from the batteries is used, via an inverter, to power appliances in the house. OR do you mean how the power output of solar panels can CHANGE? In that case, they change when the sun moves, such as behind a cloud, or just changes angle in the sky, or goes out.
Q:solar panels, wattage?
You okorder.com/ Solar Pro Magazine another of their publications
Q:How can I run my house purely off of solar panels?
It is not feasible to do everything with solar panels. However, if you overproduce during the day and sell the excess to the power company, you might be able to [pay for what you have to buy from them. Another thing you can do is use renewable energy in other forms, with windmills, hydraulic rams, and trombe walls.
Q:How many volts does a small solar panel on a calculator produce?
Build okorder.com/
Q:Which spectrum of sunlight generates the electricity in a solar panel?
It's a huge field of study, very important to solar cell development. People are trying to optimize spectral response for sunlight, even for sunlight in specific places. Google solar cell spectral response for many many websites. Most of them are specific to one experiment.
Q:i want to light up a building using solar panel what do i need?
The solar panels are made in China because there are fewer environmental regulations and cheap coal power. It takes a lot of energy to melt silicon and there are toxic waste products. It would be three to five times more expensive to make the panels in the US ( three times is just for reprocessing the toxic wastes ). Solar cell made in China are about $2 a watt, perhaps as low as $ a watt but in truth the claims for $ a watt or less solar panels as in thin film solar panels have much lower efficiency and require perhaps ten times more surface area.
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:How can I regulate current from a solar panel?
Lithium batteries do have special charging requirements. I would recommend that you use the 2 volt charger that came with them to keep them happy. Automotive power systems can have voltages as high as 4.5 volts when the engine is running so there's no need to limit the output of the panel to anything less than that. Check with the charger manufacturer to see what it will withstand. Some will work with systems up to 24 volts nominal (up to 29 volts actual) found in larger commercial vehicles such as trucks and busses. If your charger will work with both 2 and 24 volt systems you might not need anything extra to use the unregulated output of the panel. Otherwise I'd recommend a shunt regulator to clamp the output of the panel to no more than 4.5 volts. That way it would dissipate (waste) very little of the panel's power, and even that would only be during those rare times when the panel is producing maximum output. Such a device could be as simple as a high power zener diode, a low power zener coupled with a power transistor, or a precision shunt regulator such as a TL43 coupled with a power transistor. A more complex way would be a to use buck/boost regulator between the panel and your charger. You might gain a slight advantage under low light conditions when the panel isn't putting out much but the overall efficiency could end up worse than the simpler shunt regulator. Under optimum conditions, I would expect it to take a full day for a 3 watt (peak) panel to charge just one of your 35 Wh batteries. Charging an intermediate device such as the Sherpa 50 through its built in charger and then using it to charge your battery through yet another charger would severely cut your overall efficiency. Depending on how long you'll be gone, it might be far more practical, reliable, and economical to just carry (or find a way to be resupplied with) a few additional fully charged 35 Wh batteries. Don
Q:What kind of Solar Power panel setup do I need for this?
Unfortunately solar panels are low output,generally only 2 volt and very low amperage,so you would need to build a multi panel array with a DC-AC converter all together costing several hundred dollars which would only work during sunlight.Just roughly figuring,about $800. Plan2-Solar charger,battery bank,and DC-AC inverter so it would work 24hrs a day,also several hundred $$. Solar power does just not seem feasible(to me)in this application.By far the cheapest set up here would be an extension cord fromhouse to the bucket.260 watts per hr is a fairly lightweight draw,even not figuring the thermostat's cycling it on and off as needed.Electricity is sold in kilowatt hours(000W/hr).This bucket would use(not allowing for thermostats control lowering it)appx 6000watts or 6KW per day.Depending on your electrical cost per Kwh it would cost very little to run.(In my location appx 50cents a day) or appx the same amount as my computer(325watts total)) Note that that would be a maximum rate,and would actually be less due to thermostat cycling off and on as needed.

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