Solar Panel 250W/255W/260W/265W/270W/275W

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Chinaland solar energy Co.,Ltd is a high-tech company engaged in development,research,production ,sales and service of cyystalline ,solar panels and power plants.

Since the inception in 2008,our products have obtained the certifications of TUV,CE,MCS,CQC,CEC,UL,etc.And we supply products to more than 60 countries and regions,such as Germany,Spain,Italy,America,Japan.India,China and so on.

Our solar panels are widely used in commercial,residential and industrial solar power systems (on-grid & off-grid),PV power station and many other different regions.

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Q:solar panels, electronics, gear, gadgets for my birthday?
solar panel is expensive, but small solar panel is not expensive, for example, 5w solar panel, solar light also not expensive led light also not expensive. i am not sure about other stuff that you said
Q:How does solar panels work?
Since you said does instead of do I think it would be fruitless trying to explain it...
Q:How may solar panels/wind turbines may be made affordable?
go they sell books on how to build solar panels and wind turbines, along with a lot of other things that could help you live off grid. And a lot of the books were things that could be made with turn of the century (900 not 2000) technology
Q:What is the anatomy of a solar panel?
You've probably seen calculators that have solar cells -- calculators that never need batteries, and in some cases don't even have an off button. As long as you have enough light, they seem to work forever. You may have seen larger solar panels -- on emergency road signs or call boxes, on buoys, even in parking lots to power lights. Although these larger panels aren't as common as solar powered calculators, they're out there, and not that hard to spot if you know where to look. There are solar cell arrays on satellites, where they are used to power the electrical systems. You have probably also been hearing about the solar revolution for the last 20 years -- the idea that one day we will all use free electricity from the sun. This is a seductive promise: On a bright, sunny day, the sun shines approximately ,000 watts of energy per square meter of the planet's surface, and if we could collect all of that energy we could easily power our homes and offices for free.
Q:Adding Solar Panels to my home in Portland, Oregon?
I wish it was that easy! Maybe it will be soon. But at this time, no, there isn't. And if you have a solar collection system, you have to have a way to store the energy when you're producing more than what you are currently using. That usually involves an expensive battery array. But it's necessary. The power coming directly from the solar panels will be erratic and sending it to the battery array for storage and then use allows for the home to draw a consistent level of power. And this battery system also allows for storage of electricity for use when the sun isn't shining like at night. The system should be set up to use your power first, then go to the grid. It should also allow for distribution to the grid when your system has stored all the power it can and that's when your meter will run backwards and the power company will be paying you! There are a lot of federal and state income tax rebates for alternative energy installation costs. Check out what Oregon might toss into the package along with the Feds and see where you might come out.
Q:How to mount solar panel to car.?
yeah ... use dem magnets to mount it. you might enjoy a site called vandwellers google you tube vandwellers to find them. one problem with mounting it to your roof. when you want to park in the shade out of the suns heat,,, your panels are in the shade.
Q:How much energy would this solar panel produce?
The world record efficiency for a solar panel is about 42%. At the equator, you can get up to about 000W m^-2. The efficiency of commercial cells tends to range from 0-20%. They're almost all single junction cells, so will never exceed 3% efficiency. To work out your maximum power output, multiply 000 x efficiency (as a decimal) x area covered. So an 8m x 0m solar panel would be 80 square metres. At 5% efficiency its peak output would be 2000W or 2kW. Total energy output will be different, since it won't be maximum power output all the time. In fact, it will more likely generate something like 20% of its maximum theoretical output, since the Sun won't always be overhead (and sometimes it's night!). The 2kW panel above might have a mean output of 2.4kW, or 57.6kWh/day.
Q:How many LED's can power a solar panel?
The 40 kmcd rating is a measure of luminous intensity (how bright it looks), not a measure of output power of the visible light. We can estimate the performance of your proposed system as follows: The LEDs on OKorder each are rated about 20mA maximum at about 3.2V, or 64mW (milliwatts). If you use 470 ohm resistors connected to 2VDC, the current that will flow, per LED, will be about: (2V-3.2V)/470ohm = 0.0872A = 8.72mA The power taken from the 2VDC power source will be: P2v = 2V x 8.72mA = 224.6mW (per LED) The power input to each LED will be about: Pled = 3.2V x 8.72mA = 59.9mW (per LED) The LED has a luminous efficiency that can range from about 4.2% to 22%. This efficiency is the ratio of the amount of visible light output (in watts) divided by the input power (in watts). The OKorder listing doesn't identify the output power level (either in watts or in lumens), so let's assume a 0% efficiency. The LED output power will be about: Pout = 59.9mW x 0% = 5.99mW (per LED) A solar panel converts visible light to electrical energy with an efficiency that ranges say about 6% to 8%. Suppose the solar panel efficiency is 2%. Then the electrical power output by the panel will be about : Pe = 5.99mW x 2% = 0.72mW (per LED) If you shine 00 LEDs on the panel, the output electrical power will be 00 times that amount: Pe00 = 0.72mW/LED x 00 LED = 72mW <===ANSWER The power taken from your 2V source will be about: P2V00 = 224.6mW/LED x 00 LED = 22460mW = 22.46W The system efficiency will be about: Eff = solar output / battery input = Pe00 / P2V00 = 72mW / 22460mW x 00% = 0.32% SUMMARY: If you shine 00 of the LEDs on the panel, you will capture back about 0.32% of the energy expended, or regain about 72mW.
Q:Is this a good kit for building a solar panel?
I lower right corner is home built solar panels
Q:Solar Panel Batteries?
If he is going to be running off batteries at night, he would be better off with traction batteries. Traction batteries are true deep cycle and can better withstand deep discharge. Golf cart batteries at Sam's Club (the other half of Walmart) are traction batteries. If your grandfather needs safe refrigeration, a mini fridge won't do it. A 0 fridge takes too much power to run off solar panels and most won't hold their cold very well if unplugged for long. I run a fridge off grid with hybrid deep cycle marine starting batteries. It's an Engel 40. The price has gone up over $00 since I bought mine. It's a real fridge with a compressor and freon 34a. But it runs on 2v dc or 0vac and only uses 36 watts running because of a special compressor design. It will freeze food if you turn the dial down to 2 out of 5. It can also deep freeze. I use mine to keep eggs, milk, cheese and fruit juice. Your grandfather would need 400 amp-hours name plate rating of batteries at 2v to run the Engel, and probably 00 real watts of panels to recharge his battery bank. The Harbor Freight 45 watt panel set only puts out 30 watts on a clear cool day. That won't do it.

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