A Grade Solar Panle 300W Manufacture from China

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China main port
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Min Order Qty:
300 watt
Supply Capability:
2000000 watt/month

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Product Description:

 Features                                                           

1. Easy installation, high mechanical strength.

2. Withstands high wind-pressure and snow load.

3. High efficiency polycrystalline solar cell.

4. Excellent performance in low light environment.

 

Peak power (Pmax)

10W

Power tolerance

±5%

Max. system voltage

1000VDC

Open circuit voltage (Voc)

21.4V

Short circuit current (Isc)

613mA

Max. power voltage (Vmp)

18V

Max. power current (Imp)

0.557A

Cell Efficiency

>16%

Standard Test Condition (STD)

Irradiance:1000W/m2;Cell temperature:25; AM:1.5

Operating temperature

-40 to+ 85

Product show:

A Grade Solar Panle 300W Manufacture from China

A Grade Solar Panle 300W Manufacture from China

A Grade Solar Panle 300W Manufacture from China

FAQ

 • Are you manufacturer or trading company?

--- we are a manufacturer & system integrator since Jan 2006. 

• What kind of certification do you have?

--- Power from 3W to 315W with TUV,IEC61215/IEC61730,CEC,CE,PID,ISO.

• What is the warranty of solar panels?

--- 5-year warranty on material and workmanship,90% power output in 10 years,20% in 25 years. 

• Can you quote me the best price?

--- We need more information about your demands, such as the power/material/Qty/etc, then We can suggest the suitable type and quote the best price for you.

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Q:Solar derived products The role of solar panels is to convert solar energy into electrical energy, the output of DC stored in the battery
1 natural circulation:This type of storage tank is placed above the collector. Water heating collector in solar radiation temperature rise, causing the collector and tank water temperature and have a different density difference, thus causing buoyancy, this is like a hot siphon, the water flow in the water storage tank and collector. Because of the density difference, the water flow rate is proportional to the solar energy absorbed by the collector. This kind of type is widely used because it does not need the circulating water and the maintenance is very simple.2 forced circulation:The water in the hot water system makes the water circulate between the collector and the water storage tank. When the water temperature at the top of the collector is higher than the water temperature of the bottom of the water storage tank, the control device can start the water to make the water flow. A check valve is arranged at the entrance of the water to prevent the nighttime water from being driven by the collector to cause heat loss. The flow rate of this type of hot water system can be known (as a result of the flow from the water), easy to predict performance, can also be calculated in a number of hours of heating water. As in the same design condition, the natural circulation has can gain higher water temperature strengths, but because it must use water, the water power and maintenance (such as Water Leakage etc.) and the control device of dynamic stop, damage easily water problems. Therefore, in addition to large hot water system or the need for a higher water temperature, the forced circulation, the general use of natural circulation water heater. Solar power system consists of solar cells, solar controller, battery (group). Such as output power for AC 220V or
Q:What are the current domestic solar energy products, which practical
The advantages of solar water heaters and photovoltaic power generation are once and for all, slowly after many years of use can see the advantages of saving electricity bills, but the disadvantage is instability, a lot depends on the intensity of light.
Q:Home solar heating products can not mature?
1, the local climate: the solar water heater solar tube is not winter frost, but many people will find that in addition to solar tube other basically frozen broken in the actual use of the process, all the cold area, far distance roof is not recommended, the summer hail smashed zirendaomei. Before taking a bath before half a bucket of cold water, it is really a waste;2, installation conditions: the water pressure is not good, the floor is high, ready to install solar energy and electric hybrid proposal wash sleep. The related auxiliary equipment comprises a booster pump, a controller, will force you to spend a lot of innocent money, you are hard to feel the donkey3, economic price: the use of the price, the price of solar water heater in more than 3000, 1500 yuan, 2000 yuan while the gas water heater, solar electricity, but the experienced friends all know no electricity solar still can not be used, all can not talk about energy saving. On the use of the cost of natural gas pipeline gas prices in the province, followed by electricity tariffs, the overall cost of speaking, to buy more than 1500 yuan solar electricity tariff equivalent to 3000 degrees, enough for a few years of use.
Q:Advantages and functions of solar energy
The technical field of solar energy utilization: only use solar energy there are three major technology areas, namely solar thermal conversion, conversion and optical shop in addition, photochemical conversion, and energy storage technology. The solar photoelectric conversion, mainly various types of solar panels and solar cell power supply system is to convert sunlight directly into electricity a device can the photoelectric efficiency of the solar cell is about 10-14% and its products are the main types of monocrystalline silicon, polycrystalline silicon and amorphous silicon. The domestic product (of a photoelectric device full cost) the price is about 60-80% yuan / Watt Peak. The scope of application of solar cell is very wide. Such as satellites, unmanned weather station, communication station, television relay station the sun, clock, electric poles, black lights, navigation lights, railway signal lights. Solar thermal conversion technology. Most of the products such as water heaters, boiling water heaters, dryers, refrigeration and heating, greenhouse and solar house, Solar range and high temperature furnace, seawater desalination device, water pump, thermal power generation device and solar energy medical appliance
Q:Solar energy application technology, there is no prospect
You can check the latest trends on the internet. According to experts, the development of the dual opposition to China's photovoltaic industry has a short-term impact, but a national leader also said: I hope that businesses can survive six months... The following is a detailed process of the EU against china. In February 28, 2013 the European Commission announced that the EU PV Glass Association complaint based on originating in the photovoltaic glass Chinese anti-dumping investigation, the photovoltaic glass soda lime glass plate, with iron content of less than 300ppm, the solar transmittance in the above 88% characteristics.
Q:How about the effect of wall hanging solar energy
Wall type solar water heater can belong to the separated type solar hot water system, water tank placed in the balcony or exterior wall, the collector is placed at the south facade of building a balcony wall hanging type solar water heater with flat collector to absorb solar radiation into heat, heat to reach the water tank and the water heat exchanger, so that the temperature of the whole the water tank is increased gradually, let the user can enjoy free hot water from the sun.The successful use of plate heat exchanger technology in wall mounted solar products, not only improves the thermal efficiency of balcony wall products, and the successful implementation of the building safety products and life integration, so that the water heater installation expanded to all floors and is not limited to the roof, and greatly lifted the traditional solar water heater, frozen fried tube, easy Water Leakage, easy scaling problems.
Q:Outdoor solar energy products how to process the level of IP65
First, the packaging process,Design must consider the requirements of water, the structure can not be set up obstacles
Q:How to do a good job of solar water heater marketing?
Three, safety: non pressurized solar water heater working principle. Gas water heaters, electric water heater is widely used in the existing safety problems, the province each year due to the accident, use water heater to cause death in 5 cases above, and with the increase of users, the number is rising, the use of solar energy does not exist poisoning and the hidden danger of electric shock, very safe, even if the solar water heater electric heating function, because the heating body away from the user, coupled with the use of time is only 1/10 of the electric water heater, so the possibility of harm has reached very little and negligible.
Q:The steps of making solar technology stubs
Material Science:Black plastic bag, rope.Making method:The black plastic bag filled with water after the bag tied in sunlight (see photo). After a while, the bag of water on the heat, can be used to wash your face, wash your feet.3 material: walnut, stick, rubber mud, small cloth.
Q:What is the future of solar power
The roof of photovoltaic power generation is less than 2 million monthly sales tax, in accordance with the provisions of the national taxation policy, power users need to provide sales invoices to the power supply enterprise, the buyer also need invoice offset the cost, and the personal power does not have the qualification of business owners, led by invoices complicated procedures. More than 20 thousand of the tax can not get the invoice, it increases the difficulty of the sales of power generation households, is not conducive to promotion. The State Administration of Taxation issued, will reduce the tax burden on household electricity." According to the State Administration of taxation documents, since July 1, 2014, the national Power Grid Corp to buy power products distributed photovoltaic power generation project, by the national Power Grid Corp invoices, monthly household electricity generating sales of more than 20 thousand products, owned by the national grid enterprises in accordance with the taxable amount of the 50% generation of vat. The monthly sales of less than 20 thousand yuan may be exempt from vat. According to the State Administration of taxation policy released last year, from October 1, 2013 to December 2015 3l, according to the 3% levy rate calculation. In Takamatsu as an example, if a month sales of 30 thousand, that he should pay the tax is 30 thousand x 3% x 50%=450 yuan.

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