Polycrystalline Solar Panels-70W-Apply to Small Solar System

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10000 watt
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5000000 watt/month

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 Product Description

Solar Polycrystalline Series Panels

Introduction of our company

We are  leading global provider of green energy technology and solutions. Since 2005, we has earned a reputation for superior quality and production efficiency. The company has shipped millions of solar and lighting products to our clients over the world, which supported by more than 30 office locations scattered in 16 countries.

Drawing on its deep heritage in solar technology, we have deployed its expertise to the LED lighting sector. Through its exceptional manufacturing and sales channels, we produces and supplies a wide range of LED products to add value and meet ROI objectives for distributors’ clients across a number of sectors.

 

Characteristics of Polycrystalline Solar Panels

I Solar Cell : High efficiency crystalline solar cell. Even if under the weak light, the solar module can produce maximum power output.

II Tempered glass (toughened glass): Anti-reflecting coating and high transmission rate glass increase the power output and mechanical strength of solar module.

III EVA and TPT: Using high quality EVA and TPT to prevent destroying and water.

IV AI frame: Without screw, corner connection. 6 holes on the frame can be installed easily.

V Junction box: Multi function junction box with water proof.

VI Long lifetime: ≥25 years; Less power decrease

VII Good performance of preventing from atrocious weather such as wind and hails.

VIII Resisting moisture and etching effectively, not effected by geology.

 

Standard Test Conditions of Polycrystalline Solar Panels

The opto-electrical specifications shown below are stabilized values being measured at Standard Test Conditions, Irradiance: 1000W/m2, Spectrum: AM1.5 at 25°C, The info below is subject to manufacturing tolerances. Where appropriate minutes of measurement are available and are used for the dimensioning of the installation.

 

Advantages of Polycrystalline Solar Panels

1.High reliability with guaranteed -3% to +5% power output tolerance, ensuring return on investment
2. High conversion efficiency based on leading innovative photovoltaic technologies
3. Withstands high wind-pressure and snow load, and extreme temperature variations
4. Attractive appearance Unique frame design, high mechanical strength, and easy Installation 

 

Characteristics of Polycrystalline Solar Panels

 

Max Power Voltage Vmp (V)

17.4V

17.6 V

Max Power Current Imp (A)

4.02A

4.26A

Open Circuit Voltage Voc (V)

22.4V

22.6V

Short Circuit Current Isc (A)

4.30A

4.55A

Max Power Pm (W)

70W

75W

Temperature Coefficient of Cells

 

NOCT

47±2

Temperature Coefficients of Isc (%/)

0.06

Temperature Coefficients of Voc (%/)

-0.33

Temperature Coefficients of Pmp (%/)

-0.45

Mechanical Data Solar Polycrystalline Series

Power

70W/75W

Dimension

780×670×30mm

Weight

5.9 kg

Tolerance

±3%

The dimension of the modules can be changed according to the demand of clients Limits.

Operating Temperature

–45 °C to +80°C

Storage Temperature

–45 °C to +80°C

Max System Voltage

700V

Guarantee Solar Polycrystalline Series Panels

Products Guarantee

2 years free from defects in materials and workmanship

Performance Guarantee

No less than 90% within 10yrs and no less than 80% within 25yrs

Certificates

IEC, ISO, TUV, CE

 

Dimension of Solar Polycrystalline Series Panels

 

 

Polycrystalline Solar Panels-70W-Apply to Small Solar System

 

Polycrystalline Solar Panels-70W-Apply to Small Solar System

 

 

FAQ

 

We have organized several common questions for our clientsmay help you sincerely

 

1.    What’s price per watt?

A: It’s depends on the quantity, delivery date and payment terms of the order. We can talk further about the detail price issue. Our products is high quality with lower price level.

 

2.    Can you tell me the parameter of your solar panels?

We have different series of cells with different power output, both from c-si to a-si. Please take our specification sheet for your reference.

 

3.    How do you pack your products?

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

 

4.    What is your warranty system?

 Our product performance guarantees for 25 years

12 years guarantee for workmanship

Timeliness of delivery

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

 

5.    How do you pack your products?

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

 

 

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Q:how does solar panels give power to the batteries?
solar panel convert sunlight into electricity,The controller is connected between the photovoltaic panels and batteries,it makes electricity generated from solar panels charge batteries.
Q:Could solar panels contribute to global warming?
Claire's argument doesn't make much sense to me either. First; Claire is talking about the second law ('you can only lose or break even'), not the third law ('you can't get to absolute zero'). Easily confused, but not that important! Putting a solar panel down _can_ increase the heat absorbed by Earth. Everything has an 'albedo' (the proportion of incoming light it reflects), and Earth's average albedo is about 0.3 (ie 30% of incoming light is reflected, most of which leaves the atmosphere straight away). By putting a 0.05 albedo solar panel down on a 0.3 albedo surface, you increase the amount of sunlight that is absorbed by Earth and therefore contribute to warming. This heat is re-radiated at the Earth's temperature, in the right wavelength range to be absorbed by greenhouse gases too. If you put a panel down on equatorial ocean, or a black roof, however, there is pretty much no effect (since the albedo change is small). Also, the heating effect only lasts as long as the panel is there. Most panels are estimated to last 50 years, meanwhile CO2 has a mean lifetime of 00+ years. I did some maths and found that the 00 year averaged change in radiative forcing for solar panels was negative compared to the UK electric grid, because the reduction in CO2 emissions has a larger effect than the change in albedo. If I have spare time tomorrow I'll redo the calculations and share them. The albedo change has to be considered though!
Q:Where to get or find information on solar panels?
On my website you can read my story of how my dad made solar panels at home and now he pays nothing to the electric company.
Q:Solar panel setup?
The solar panel wires go to the charge controller. The charge controller wires go to the battery. You can also run wires from battery to a load ONLY IF it is DC load. If any AC loads, then you need a inverter to change dc to ac.
Q:Can pluto recieve energy from solar panels?
I'm definitely no expert in the field but hope to learn much more in the future. I'm in the infancy stage of researching as many options as possible in the design and construction of a total green house. That being said, a particular local news story sparked my interest when they investigated the cost effectiveness of residential solar panel systems. Here in Austin, Texas, through subsidies and incentives offered, you can install a system that costs roughly 22.5k for about 7. Apparently these deductions come from a federal incentive (which is a very small portion) combined with those set by the city itself. Austin is a pretty progressive city so I imagine their incentives might be a little better than most but you can call your city's general info line (3) and do a little more digging. Another option you might have is renting the equipment. I was told yesterday that a company here in town would allow for the installation and use for a monthly rate. I know how tight cash can be in school and 7 thousand might not be tangible. The whole issue of energy conservation is so prevalent these days that new info is constantly coming out. Give your current energy provider a call and see what they can tell ya. I hope you find something that works for you. -G
Q:Do homemade solar panels really work?
Solar photovoltaic cells oxidize, commercial panels are hermetically sealed but DIY panels degrade rapidly with time. Sizing the broken solar cells by individual measurements are labor intensive and the additional soldering makes them unreliable. Also, their irregular shapes result in less of the panel's surface area being covered with cells. They do work but not well and they deteriorate quickly.
Q:how often do you have to replace solar panels?
My panels came with a 25 year warranty. I will have to replace the converter ($000) at some point, 2-5 year mark. I should breakeven within 6 years thanks to great rebates in my area. I've heard that they lose some efficiency over time, but I know people who have had panels for over 0 years and if they have drop off some, it isn't noticable.
Q:Whats the annual energy output of the average solar panel.?
The output of a solar panel would depend on your location and panel size. Most solar panels are rated using 000 Watts per square metre from the sun. This is only possible at the equator. Some supplier have online estimators for output depending on your location. Solar panels rate up to about 250 Watts per panel. I have an online calculator to work out the costs and benefits of solar. You can compare the costs of solar setup and 25 years of electricity versus buying from the grid.
Q:Solar panels require big initial investment, how can I check if the money I save will be more than that?
Only by doing the calculations (figuring out how much you electricity bill is per month now and calculate how much time it will take to get to the figure of your solar panels. Don't forget to add a couple of percentage points per year higher(since when has electrical costs gone down)? and do the addition. That is when you will pay off the solar panels, as their power is free.
Q:Solar panel connected to battery ??
your solar panel has to be a bit higher in voltage than your battery to achieve charging. I.E . if your battery is 3.6 volts, your solar array voltage should be like 5.v. to make the charging take place. always a bit higher than your battery,. wattage is not so important, you can charge a whole slew of batteries with a .5 watt charger, it just takes a while. higher wattage will make it charge faster, tho. v. x a. =w.

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