Top Ranked 245w Polycrystalline Silicon Solar Panels
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- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- 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.
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.
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
Data sheet
Maximum Power | 245W |
Efficiency | 0.151 |
Backsheet | Silver |
Frame Colar | White |
Manufacture Site | China |
Frame | Anodized Aluminum Alloy |
Weight | 19 kg |
- Q:If I wanted to add solar panels to my home to produce on average, 8 kWh of electricity daily, how much do you estimate it would cost using state of the art technology?I live in Virginia (Washington DC Metro Area), and I have Dominion Power. I pay the following electric rates:Jun-Sep $0.0904/kWhOct-May $0.0776/kWhAnnual Ave: $0.0824/kWhDistribution charges add on approximately another $0.0228/kWh.How long would the ROI for an 8 kWh/day solar system be?
- Figure 8 hours of sun per day, so 8 kW-hr is a rate of kW, which is a medium sized panel, probably not enough to operate your house totally, unless you have a very small unit. Averaged over 24 hours, that is power at a rate of only 300 watts, enough for a TV. Average US home use is .2 kW, which over 24 hours is 29 kW-hr, plus you need extra for cloudy days, peak demands, and to charge batteries. You have to decide off-grid or on-grid, and if you want to (and are allowed to) sell excess power to the power company. Off gird, the cost of batteries and charge controller are a large part of the cost. On-grid, you have to purchase equipment approved by the power company to match your power with the grid. Panels will cost about $3 per watt, so for 000 watts that is $3000. Double that for installation, then add in cost of charge controller, inverter, batteries, etc. The last items depend on your alternatives, see paragraph above. .
- Q:Our school is in the process of being built, but they have no plans to include any environmental benefits. I was wondering how to get a grant for solar panels (at least) or who I can talk to in order to get a grant.
- Excessively long payback schemes for solar panels are being quoted. It depends on where you live, where you situate your solar panels, what you buy and if you get a grant or install them yourself. Much of the cost of Solar panels is in the installation. Any competent DIY person can install a simple solar panel system. Ours cost less than ?000 to buy and self install. What are you calling payback time? Because each time I don't use fossil fuels and use solar energy instead, I don't get a 'fossil fuel' bill. Whilst we still use some electricity for running a fridge, lighting etc we have no other fuel bills, no gas, no oil, no electric heating no electrically heated hot water. We have woodburning stoves (which run on free wood) and solar. Remember you are not just paying for the electricity/gas/oil etc that you use, you are also paying standing charges, VAT etc. Include those in your 'payback time figures' and you will see a very different picture. How long would it take you to pay back ?,000 if you only had one tiny electric bill each quarter?
- Q:How do solar panels affect the property's energy independence?
- Solar panels can greatly enhance a property's energy independence by generating electricity from sunlight, thus reducing reliance on traditional energy sources. This allows homeowners or businesses to generate their own clean and renewable energy, potentially offsetting or even eliminating their need for grid electricity.
- Q:I have a shed that has wiring run for light bulb and a couple outlets. It is in a dark corner of my yard and at night is kinda creepy to go in with even a flashlight. I am weighing the option/expense of running electricity from the house on an overhead line versus putting up a 45 watt solar panel on the metal roof with inverter, battery etc. Sunlight is good to excellent at the location. Question is - will this be sufficient for the occasional use of light and an outlet? What can I expect? Pros and cons appreciated
- Lets say, for a simple approximation, that the 45 watt panel produces 45 watts /3 of the time and nothing the rest of the time. Each day, this will produce 8 hours times 45 watts = 360 watt hours. Also assume the battery charge controller and inverter waste half of that power, leaving 80 watt hours per day. If you use compact fluorescent lamps, that would allow you to burn 80 watts worth for an hour every day, or 90 watts for 2 hours, etc. That is a lot of light for a shed. You might consider using much less efficient tungsten filament lamps, but eliminate the inverter and choose low voltage (automotive) lamps that can run directly across the battery and lower the total cost, but give you only about half the light times time. The main advantage of the inverter might be that it would allow you to use small power tools or appliances in the shed. -- Regards, John Popelish
- Q:Can solar panels be installed on a billboard or signage?
- Yes, solar panels can be installed on billboards or signage.
- Q:i want to go off grid with solar panels but i need to know how many vots and watts i need to power my house
- Complex question.... Let me try to simplify it some: Make a list of every electrical device you MUST have. Add to the list how many hours a day it is actually ON. Add to the list how many watts (listed on the label or Volts times Amps) the device uses. (If you have a measuring device, use it.) For each item, multiply volts times hours = watt-hours (this is total energy used per day). Also, add the watts column for all the devices (this is the maximum instantaneous power to be used). Your solar panels should be able to provide power for your total load, so your panel's output power should equal the maximum instantaneous power used. If you can limit how many devices are used at a time, you may be able to reduce the panel size. Look at the total watt-hours. This is the total energy. Your panels generate maximum output when they are perpendicular to the sun at noon on a clear day. They generate reduced output in the morning and afternoon. They also generate substantially reduced output on cloudy days. Also, did you want electricity at night? On cloudy days? You will need batteries.. lots of batteries. And batteries are inefficient.. figure about 50% efficiency after a few years. Basically, here is a very rough formula: Panel_watts = Load_watthours / hours_sun_daily / 60%_angle_efficiency / 50%_battery_inverter_efficiency Once you've figured out the panel's watts, watts/volts=amps. Your system can be 2V with more amps, or 48V with /4 the amps... but the watts are the same. Just the wiring is different. For the battery bank, you need to determine how much backup power you will need for nights and cloudy days. Look at the watt-hours needed at nite, multiply it by the number of days and then by 2, to allow for battery aging. Unless you only have a couple devices and an LED light or 2, it is going to be VERY expensive.
- Q:Can solar panels be installed in areas with high humidity?
- Yes, solar panels can be installed in areas with high humidity. High humidity does not significantly affect the performance or efficiency of solar panels. However, it is important to ensure regular maintenance and cleaning of the panels to mitigate any potential issues caused by dust, dirt, or moisture buildup.
- Q:how big of an solar panel do i need to power/charge my laptop?would one from canadian tire sell the right one?
- Yes. Basically, here's what you need (I'm keeping this general on purpose): The panels themselves -- how large an area depends on average power consumption and how much power you can get on average. That, in turn , depends on climate. You'd need more in Seattle than Tuscon, for example. I'd guess something in the neighborhod of 0 square feet. Depends also on haow many gadgets (printers, etc.) you have. You'll need a power storage system. Lithium gives you the best poser density (of off-the-shelf stuff) but an ordinary car battery works well and is reliable. And, of course, a control system to manage the power generation/storage/use so everything works together without that annoying smell that tells you you just cooked a few hundred bucks worth of equuipment! :)
- Q:What is the impact of roof orientation on solar panels' performance?
- The impact of roof orientation on solar panels' performance is significant. The orientation of the roof determines the amount of sunlight the panels receive throughout the day. Ideally, solar panels should be installed on a south-facing roof to maximize their exposure to sunlight. East and west-facing roofs can also work, but they may produce slightly less energy. North-facing roofs are generally not suitable for solar panel installation as they receive the least amount of sunlight. Overall, roof orientation plays a crucial role in determining the efficiency and effectiveness of solar panels.
- Q:Do solar panels require building permits?
- Yes, solar panels typically require building permits. The requirements for obtaining a building permit may vary based on location and jurisdiction. It is essential to check local regulations and obtain the necessary permits before installing solar panels.
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Top Ranked 245w Polycrystalline Silicon Solar Panels
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 200000 watt
- Supply Capability:
- 20000000 watt/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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