305w Polycrystalline Silicon Solar Panels

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Guangzhou
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Min Order Qty:
200000 watt
Supply Capability:
20000000 watt/month
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About us

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. 

Our present annual capacity is 6 million for wafer, 60MWp for solar cells,200MWp for solar modules and one hundred thousand for solar applications. It is expected that the annual capacity of 2012 will be up to 30 million for wafer, 300MWp for solar cells, 1000MW for solar modules and 2 million for solar applications. 


INTRODUCTION

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.

 

WORK PRINCIPLE

 305w Polycrystalline Silicon Solar Panels

 Data sheet

Maximum Power

305W

Efficiency

0.157

Backsheet

Silver

Frame Colar

White

Manufacture Site

China

Frame

Anodized Aluminum Alloy

Weight

27 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:how much energy does a kilowatt solar panel produce in a year? (average)
Also you can look for INSOLATION TABLES on the Internet. Keep in mind, though, that the useful output of a solar system that produces AC will be somewhat less than the theoretical value. Local conditions, orientation of the modules, dust on modules, wire resistance losses and efficiency of inverters will drag down the true output. My 6 kW system produces just over 4 kW at optimum sun height.
Q:
Yes, solar panels can be used to power a wastewater treatment plant. Solar energy is a sustainable and renewable source of power that can be harnessed to generate electricity for various applications, including wastewater treatment. By installing solar panels, the plant can reduce its reliance on conventional electricity sources and lower its carbon footprint. However, the feasibility of using solar panels for powering a wastewater treatment plant may depend on factors such as the plant's energy requirements, available space for solar panel installation, and local climate conditions.
Q:Hi! I bought a Coleman 2 vdc cooler that pulls 9 amps. What size solar panel and amp-hour battery do I need? I only open it 3 times a day. It will hold about 3 gals of milk.
If it pulls 9 amps continuously, that's 08 watts/hour or about 2.5 kwh/day. If it only pulls half that (does it cycle?) it's about .2 kwh/day. You only want to drain a lead-acid battery 50% or so, so you'll want a 5 or 2.5 kwh battery pack. A typical setup for the 5 kwh would be two L-6 batteries in series, and for the 2.5 kwh you could use 2 T-05 batteries in series. This does not account for days of cloud. If you regularly have cloudy days, size the battery pack for two or three days of use with no input (2-3 x the sizes given above). To charge them, you typically want panels that will charge your battery at least 5% of its capacity per hour (C/20). For 2 volt nominal panels that's 0 amps for the T-05 or 20 amps for the L-6 batteries. It's good to have more than that for battery life (it cuts down on what's called stratification), so you'll want probably 50-200 watts of panels for the T-05 and 300-400 for the L-6. You'll also need a charge controller. Peltier coolers are very inefficient. You'll save money by using a regular mini-fridge and an inverter. Most mini-fridges only draw 50 watts or so, so you're talking 600 watt-hours for a 50% duty cycle. This means two T-05 batteries will give you two days of use and you'll only need 20-50 watts of panel. DK
Q:I need to use solar panels to charge lead acid batteries in an off-grid application. I understand that solar panels have a open circuit maximum voltage and an maximum amperage under no resistance, and that one can optimize the power output by regulating the load (resistance). If so, is just connecting 2 -volt solar panels to a lead-acid battery inefficient? Are there devices that will maximize 2 volt output power (by varying the resistance)? Am I on the right track here? Thanks for any help.
The answer is actually quite complicated, but if you're planning on building just a very small system, most likely, the panel will be small and weak. In this case, connecting a panel that is 8 volts open circuit directly to a lead-acid battery is probably the most efficient way to charge. There are charge controllers that you can buy, some of which actively track the maximum power point for charging your battery. Unfortunately, those controllers might eat 5 or 0 watts, just to get you another few percent of charging efficiency. If your panel is only 50 watts in the first place, you can see that this is not a good deal. If you're getting serious panels (clue: price $500 each), then you may very well benefit from a charge controller with MPPT (max power point tracking). Lead-acid, either a flooded cell like your car battery, or AGM, are the standard for solar energy storage. Lithium ion is better in many ways, being less sensitive to temperature, state of discharge, and they are also lighter. Charging them is also more straightforward with the right circuitry. The problem is, they cost like $500 per kWh, compared with less than a tenth that price for lead-acid.
Q:
Yes, solar panels can be used in areas with high levels of heatwaves. In fact, solar panels can still generate electricity in extreme heat, although their efficiency may decrease slightly due to the temperature increase. However, it's worth noting that high temperatures can also lead to increased energy consumption for cooling, which may offset the benefits of solar energy to some extent. Nevertheless, solar panels remain a viable and sustainable solution for electricity generation in areas with high levels of heatwaves.
Q:My plans are building several solar panels and have a battery bank. I want to be able to power the refriderator and freezer and occationaly an electric grill. How would This work exactly and what would the best way to hook this up to make it work? I want to be able to convert DC to AC. How many batterys would I need to make this work. I know when Civil unrest happens I want to be prepared. How would Wind Power work If I can get the equipment I need?
A 000 sq. foot abode isn't very great whilst it includes the standard length abode. at present the main inexpensive and best variety of eco-friendly potential for powering a house is wind potential. an outstanding wind turbine can get you on the brink of seventy 5% to a hundred% or much extra performance. extra beneficial potential produced via wind will reason the electrical powered meter to run backwards. At that factor, you're promoting the surplus electrical energy decrease back to the electrical powered company, providing you with extra money in the direction of a destiny electric bill. in spite of if image voltaic potential can help, image voltaic potential, in itself, might fee 2 to 5 cases extra beneficial than wind potential.
Q:
Solar panels can potentially affect insurance rates in two ways. First, installing solar panels can increase the value of a property, consequently leading to higher insurance premiums to ensure adequate coverage for the increased value. Secondly, solar panels can be considered an additional risk factor due to potential damage or liability concerns associated with their installation or operation, which may also result in higher insurance rates. However, the extent of these impacts may vary depending on the insurance provider and specific circumstances.
Q:I am writing a lab for school and I need to know who invented solar panels? Any help would be great.
Google would like to be your friend - Try - who invented solar panels and see what turns up.
Q:
Solar panels can have a positive impact on a property's green certification as they contribute to increased energy efficiency and the use of renewable energy sources. By reducing reliance on fossil fuels and decreasing carbon emissions, solar panels can help the property meet the criteria for green certification by demonstrating a commitment to sustainability and environmental responsibility.
Q:i am looking at installing some solar panels and a wind turbine for electricity.has anybody got one of these and how much do they save you?thanks
Both wind and solar take many years to break even economically, even with government subsidies (Using someones hard-earned tax dollars for your use). If purchased and installed with your own money, they will never pay for themselves because they will need replacement long before you save enough to pay the cost.

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