• Residental Solar Panels 250w Silicon Polycrystalline System 1
  • Residental Solar Panels 250w Silicon Polycrystalline System 2
  • Residental Solar Panels 250w Silicon Polycrystalline System 3
Residental Solar Panels 250w Silicon Polycrystalline

Residental Solar Panels 250w Silicon Polycrystalline

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Loading Port:
Guangzhou
Payment Terms:
TT OR LC
Min Order Qty:
200000 watt
Supply Capability:
20000000 watt/month

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INTRODUCTION

We are a high-tech group wich specializes in solar products design,research, manufacture, sales,solar projects design and installation. 

Our national sales service covers seven parts, including northeast, north, east, middle, south, northwest and southwest, international sales covers five continents and over forty countries, including Germany, Italy, Spain, France, America and Brazil etc. 

This installation Manual contains essential information for the electrical and mechanical installation that your must know before installing CUSTOMER PV modules. This also contains safety information you need to be familiar with .All the information described in this manual are the intellectual property of CNBM and based on the technologies and experiences that have been acquired and accumulated in the long history of CUSTOMER. This document does not constitute a warranty, expressed or implied.

CUSTOMER does not assume responsibility and expressly disclaims liability for loss, damage, or expense arising out of in anyway connected with installation, operation, use or maintenance of the PV modules. No responsibility is assumed by CUSTOMER for any infringement of patents or other rights of third parties that may result from use of PV module.

CUSTOMER reserves the right to make changes to the product, specifications or installation manual without prior notice.

 Solar Panel 250w Silicon Polycrystalline

 

GENERAL INFORMATION

The installation of PV modules requires a great degree of skill and should only be performed by a qualified licensed professional, including licensed contractors and licensed electricians. Please be aware that there is a serious risk of various types of injury occurring during the installation including the risk of electric shock. All CUSTOMER modules are equipped with a permanently attached junction terminal box that will accept variety of wiring applications or with a special cable assembly for ease of installation, and they do not require assembly.

 

DATA SHEET

Maximum Power

250W

Efficiency

0.154

Backsheet

White

Frame Colar

Silver

Manufacture Site

China

Frame

Anodized Aluminum Alloy

Weight

19 kg

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: What is a solar PV module?

A: A solar PV module consists of many solar cells that are connected together (typically in series) and packaged in a frame (typically made of aluminum).

Q3: What are the advantages and disadvantages of monocrystalline solar PV modules?

A: Monocrystalline solar PV modules are the most efficient type of solar PV modules, with the exception of CdTe thin film solar PV modules. As a result, monocrystalline solar PV modules are more expensive when compared to almost all other types of solar PV modules.

Q: Does the new horizons has a solar panel for it power resources instead using nuclear generator?
It uses the nuclear decay of plutonium in a 'Radioisotope Thermoelectric Generator, or RTG. The heat of plutonium decay is captured and converted to electricity. Pioneers 0 and , Curiosity on Mars, and other deep-space probes use this, as the sun's light is too dim to use solar panels.
Q: Ok, so I've been having much success with the joule thief circuit and a LED, but i tried hooking it up to a small solar panel that can put out 2.5v on it's own, and can light up a white LED dimly by it self to the joule thief and it will not work ....my question is why? I already trouble shooted it, the circuit is not the problem, is it the amount of amps the small solar panel is capable of? not enough?
Solar panels convert light energy to electrical energy with an efficiency of around 5%. A SMALL solar panel will only produce a small amount of power (watts) your joule thief circuit wont help because as you draw more current from the solar panel the voltage will drop; and your joule thief circuit just reduces the efficiency of the whole system Try adding another solar cell in series to get more voltage and more power.
Q: Can solar panels be installed in areas with high winds?
Yes, solar panels can be installed in areas with high winds. However, it is important to ensure that the panels are securely mounted and properly designed to withstand the wind load. Additionally, the orientation and tilt of the panels can be adjusted to minimize wind resistance and improve their durability in windy conditions.
Q: Which kit did you use?How easy was it to build? How much did it cost to build the panels?How many kw or watts does it produce?Any other info on the kit or panels you built would be helpful.Thanks!
Firstly, forget about making your own PV panels, while you can (if your chemistry is up to it and the home lab well tooled up) make a small PV cell, the efficiency will suck and you will never make enough to produce a reasonable amount of power. What you can do is to build your own solar thermal system to produce hot water (solar thermal makes better sense then PV in most domestic situations anyway), black painted central heating radiators under perspex, rockwool behind, small pump running a water/glycol mix through a heat exchanger controlled by some trivial electronics... Job done. As long as you don't try to run too hot, you can get a hundred watts or so of heat per square meter from such a solar thermal plant. Regards, Dan.
Q: Can solar panels power an entire home?
Yes, solar panels can power an entire home. The number of solar panels required will depend on the energy needs of the home and the efficiency of the panels. With the right setup and sufficient sunlight, solar panels can generate enough electricity to cover the energy consumption of a household.
Q: Okay, I think I understand what I'm doing, but I want to set up some solar panels on the roof of my garage, the building that gets the most sun, and I want to make sure all my math is correct in determining number of megawatts per year. However, my knowledge of electrical terms in quite n00bish, to say the least.Here is what I think I should be doing.The solar cells come at .75 Watts average power.I will install 4 panels of 64 cells each, with a total of 256 cells.
For comparison, 36 of these make a normal 2V x 50W panel. Note they are not tabbed. This means you have to find a way to connect them yourself. The tabs are probably spot welded on by the suppliers. A supplier below has kits of these with tabs, as needed to connect them together. These are not suitable for grid connect, because the higher voltage needed makes do it yourself panels a dangerous and litigious thing to have on your roof. Maybe you could buy a smaller pack from the link below to compare tabbed and untabbed and work out what to do. Your power calculation is a bit incorrect because the sun is only present some of the time. The 36 cell module would produce 50W when square on to the full sun. The sun may be out for around 2h a day in some places and times of the year. However it is the equivalent of 5h full sun, because of the changing angle throughout the day. Look this up on the internet for your region. Temperate zones may be a lot less. One pack in your link is 36x3 = 08 cells. Thus 50W per pack x 5h a day gives 750Wh per day and 274KWh/y. In reality it will always be less because of regions, weather, clouds, dust, inefficiencies, aging of cells.
Q: So you know how the bigger the surface area exposed to the heat radiation means the quicker it'll heat up.Is this what happens with solar panels, they have a large surface area exposing to the sun, so they can get more heat?
Solar panels do heat up. But that's because the radiant energy from the Sun that lies within the infrared (IR) band of energy causes the material in the panels to heat up. And that's the same for any body that has the Sun shine on it. Your face, for example, will heat up while you get a nice tan on the beach. That's due to the heat producing IR radiant energy. Now if those solar panels are supposed to heat buildings etc., that heat produced in the panels when the IR strikes them will be transferred, usually by some fluid, to floors of the rooms to be heated. And as the amount of heat generated by the Sun is proportional to the area of the solar panels, bigger areas of panel will generate more heat than smaller areas. Photoelectric solar panels are another kind. Here the interest is in the visible band of radiant energy from the Sun. Heat, from IR, is still there, but it is not the product sought by PE solar panels. The visible light photons knock off loosely bound electrons from the photoelectric material (typically silicon based) and those electrons are siphoned off as current. That's where the electrical power comes from for buildings using PE solar panels to provide their own electricity.
Q: Can solar panels be installed in urban areas?
Yes, solar panels can be installed in urban areas. In fact, they are increasingly being installed on rooftops, facades, and even integrated into buildings in cities around the world. Urban areas offer ample opportunities for solar panel installation, promoting clean energy generation and reducing dependence on fossil fuels.
Q: I'm thinking of getting a solar panel for my house to help cut back on power use (I live in New Mexico). What sort of appliances can I run on a watt solar panel? Is it worth it to get a single watt panel or is it more efficient to get a multi-watt panel?
watt is a very small amount of electricity. The typical household uses several million watt hours per year. watt would be enough to trickle charge a battery to run an LED nightlight. I believe the little self contained walk lights that I have put out have a 0.35 watt Ni-Cad battery. That could be recharged by a watt solar panel.
Q: I have a 2V .5W solar panel and I want to get a battery that can be charged by the solar panel that can then be used to power a 2V .5W fan. Ideally I want all the components to be connected and able to run without interaction. I have very little knowledge in regards to this field which is why I have come to yahoo answers. Any help would be greatly appreciated.
There okorder / Why pay thousands of dollars for solar energy ($27,000 average cost) when you can build your own solar panel system for just a fraction of the retail cost. You can build a single solar panel or you can build an entire array of panels to power your whole house. Some people are saving 50% on their power bill, some people are reducing their bill to nothing. But what’s most impressive is that just by following these instructions some are even making the power company pay them!

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