Tw Solar Panels 250w 30v PV Module for Solar System Poly Panel

Tw Solar Panels 250w 30v PV Module for Solar System Poly Panel System 1

Tw Solar Panels 250w 30v PV Module for Solar System Poly Panel

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Loading Port:: Shekou

Payment Terms:: TT OR LC

Min Order Qty:: 360 pc

Supply Capability:: 1000000 pc/month

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Specification

Material:

Polycrystalline Silicon

Max. Power(W):

250

Number of Cells(pieces):

250w 30V PV Module for Solar System Poly Panel

CNBM is a high-technology enterprise which specially engaged in solar products development, production, sales and service. The range of our products includes solar cell series, solar module series and solar system from 100w-100kw. We focus on establishing, equipped with advanced electronic equipment, backed by experienced technical support and professional high-quality managers.

CNBM solar products meet with great favor of customers at home and abroad. We enjoy a good reputation from our customers for high quality, competitive price, prompt delivery and best service. There is a stream of developing, producing and marketing elite, who are full of experience of solar products research and development. They hold professional service and customers’ contentment as their aim, and take high efficiency, excellence, and top quality as the highest mission.

Item	photovolatic panel
Solar cells :	Poly-Crysalline 156×156mm 60pcs.(6×10) ---3 bus bars
Max-power	245Wp	250Wp	255Wp	260Wp	265Wp	270Wp
Power Tollerance	0 to +6W
Voltage at Pmax (Vmp)	30.7V	30.9V	31.1V	31.3V	31.5V	31.7V
Current at Pmax(Imp)	7.98A	8.09A	8.17A	8.20A	8.31A	8.41A
Open-Circuit Voltage(Voc)	37.5V	37.7V	37.9V	38.2V	38.4V	38.7V
Short-Circuit Current(Isc)	8.58A	8.76A	8.87A	8.97A	8.99A	9.10A
Maximum system voltage(VDC)	1000(IEC), 600(UL)
Cell Efficiency	17.0%	17.3%	17.6%	17.6%	18.0%	18.3%
Moudule Efficiency	15.00%	15.40%	15.70%	16.00%	16.30%	16.60%
No. of Bypass Diodes (pcs.)	3
Max. Seriex Fues(A)	12A
Temperature coefficients of Pmax	-0.45%/ ℃
Temperature coefficients of Voc	-0.34%/ ℃
Temperature coefficients of Isc	0.05%/ ℃
Nominal Operating Cell Temperature	45±2℃
PS	STC Conditions (1000W/mm ; 1.5 AM and 25℃ Cell temperature)

We have different model, size and power

50W, 100W, 250W, 300W, and any thing customized.

We have a wild range of successful project all over the world.

We have advanced, mature and stable supply production line. Support your request on solar market.

Pre sale:

1.Our sales representative and engineer work together to answer your questions and offer solution for free

2.We choose the best product for you to make sure it worth its real value

3.We design the best solution with good perfomance for you,manwhile save every cent of your money.

After sale:

We provide 10 years Warranty for the product, 12 years warranty for 90% power production ,25 years warranty for 80% power production.

Q: Can solar panels be installed on the ground?: Yes, solar panels can be installed on the ground. Ground-mounted solar panel systems are a popular alternative to rooftop installations, especially in areas with ample available space. They are often used for large-scale solar projects, such as solar farms or commercial installations, but can also be installed in residential settings if space allows. Ground-mounted panels offer flexibility in terms of orientation and tilt angle, optimizing energy production.

Q: Can I install my 2v solar panel straight to battery to charge the battery on my 989 ford ranger?: If you were going to do that it would have to be the right size solar panel and you would need a solar battery charger so it doesn't fry your car battery

Q: Can solar panels be used for powering outdoor signage?: Yes, solar panels can be used to power outdoor signage. Solar panels harness sunlight and convert it into electricity, making them a sustainable and eco-friendly option for various applications, including outdoor signage.

Q: Do solar panels require cleaning?: Yes, solar panels do require cleaning. Over time, dust, dirt, leaves, bird droppings, and other debris can accumulate on the surface of solar panels, reducing their efficiency. Regular cleaning is recommended to ensure optimal performance and maximize energy generation.

Q: Can solar panels be installed in areas with heavy snowfall?: Yes, solar panels can be installed in areas with heavy snowfall. However, it is important to consider the impact of snow on the performance and efficiency of the panels. Proper installation and orientation, along with regular snow removal, are necessary to ensure optimal energy production during snowy periods. Additionally, the use of tilt mounts or snow guards can help prevent snow buildup and improve the effectiveness of solar panels in such areas.

Q: Can solar panels be used in areas with high levels of snow or ice?: Yes, solar panels can be used in areas with high levels of snow or ice. However, the efficiency of solar panels may be reduced during winter months due to reduced sunlight exposure. It is important to design solar panel systems in snowy regions with proper tilt and orientation, as well as implement measures like snow removal to ensure optimal performance.

Q: Can solar panels be used for charging batteries?: Yes, solar panels can be used for charging batteries. Solar panels convert sunlight into electricity, which can be stored in batteries for later use. This makes solar panels an effective and sustainable solution for charging batteries, especially in remote areas or during power outages.

Q: I have some property off the grid and am looking to add solar power: Of okorder /... , and shop the web for the best panels for yourself. p.s. I'd avoid amorphous silicon panels. They may be cheap, but they'll go bad or seriously degrade in just a few years. p.p.s. I'd also avoid internet guides that claim you can make your own panels very cheaply, if you'll just pay them $$ for the information. Those guides don't live up to their advertising.

Q: I was just wondering what the minimum and maximm charging voltage and ampere is for li ion batteries. If i connect a solar panel, which only gets enough sunshine to generate voltage, will that still charge the battery, or would i have to series connect solar panels until they together reach 3,7volt?: One lithium cell requires 4.2V to obtain its full charge, Never exceed 4.2V ! Output from solar panel if below 3.7V , nothing charge to lithium. Total charging time until the cell is full depending on the AH rate of cell and the charging current that solar panel can be provided. Suppose cell is rate 5AH, and the charging current from solar panel under full sun shine can maintain 0.5A ( use solar panel short circuit current rate from its specification as a reference ) , hence, 0 hours is enough. And be sure the solar panel can maintain 4.2V output at 0.5A . Remember, over charge lithium cell one time might reduce its life into half . Therefore, let the solar panel output passing through a precision regulator to maintain output is 4.2V is the best way, because, as cell reaches 4.2V , no more charging current is forced into cell ( automatic stop charging ). If you do not have the knowledge to make this simple variable voltage regulator with LM37K ( if you choose this way, buy solar panel output has at least 2V) , you may choose to do it manually by install a current meter and a variable resistor in series between the panel output to cell. By adjust the value of resistor, charging current can be controlled ( if you choose this way, buy solar panel output has as less as 6V ). Count the charging time with a clock and adjust the charging current from time to time to maintain 0.5A .

Q: hi everyone..i wanna do my major project on solar panels...so anyone kindly tell me the projects based on solar panels..: I have done this in my project too and a solar panel, two wires, a circuit/project board, an LED light/a small fan,a switch and a solderer. Just solder the wires to the positive and negative parts of the panel, put the wires connected to the panel to the board put the LED's on the other side and the switch together with it shine light on the panel and the light/fan will work.(If it dosen't work, please DO NOT consult ME.)

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