Silicon Solar Monocrystalline Solar Panels 190w
Voltage at max. Power (V)
Current at max. power (A)
Series Fuse Rating (A)
1000V DC（IEC）/600V DC(UL)
Cell typical and quantity
72pcs Monocrystalline silicon（125×125mm）
60pcs Polycrystalline silicon（156×156mm）
60pcs Monocrystalline silicon（156×156mm）
- Q:How effective are solar panels now in N E with our 40+ snowfall this month?
- Green energy magically makes the snow transparent. The more I learn about solar and wind, particularly selling excess power back to the utility, the less sense it makes. You'll have noticed, perhaps, that there was no way to store the power from the panels for when it's really needed.
- Q:Solar panels and your opinion?
- The payback is usually between about 5 and 5 years depending on how expensive electricity is in your area, the rebates available, and where you live (is it sunny most of the time?) Most people that get them don't do it for the investment - they do it to be energy responsible - but it's not a bad way to do both if you have the money to put into it. I personally just pay for the green energy option from my electricity provider. So I am buying power from solar and wind farms, and it cost about 0% more per month. I don't get the benefit of free power, but it comes with a smaller price tag initially, and I think when we all invest in these technologies, the price will improve over time, so energy costs will be lower in the future.
- Q:Please differentiate b/w mono & poly crystalline silicon solar panels.?
- how much does these pannels way and which are the most efficient?
- Q:how much is one solar panel?
- no one has answered because you asked a question that cannot be answered. It is exactly the same question as how much is a car?. Do you want a passive solar heating panel, a solar electric panel, .5 Volts, ,000,000 BTUs, do you want just the panel or the panel installed and functioning, or what? the answer is between $5 and $5,000,000.
- Q:how are solar panels practical?
- Solar Panels are practical because they provide electricity to your home directly avoiding the rates paid to the utility. They are pay themselves off in 5 years or less and supply an income stream in NJ for 5 years!
- Q:Can you overload solar panels with too much light?
- A photovoltaic cell will only be 'sensitive' to a band of radiation...and would probably not even 'see' the energy from a heat lamp. So, no, the solar panel would not be 'overworked' if somehow you could put 2 or 3 suns in the sky at once. It would simply ignore, so to speak, the photons that it didn't need. But, the heat from the heat lamp, or the extra photons, would eventually heat up the glass and the plastic the thing is made of, and it would fail prematurely.
- Q:how much energy does a 70x70 sq ft area of solar panels collect?
- I'm putting in a $00,000 solar wind project on ST Thomas, Virgin Islands so I have some experience here..... ) depends on where you are...the further north the less efficient the panels are because early morning and late afternoon sun hitting at a great angle isn't anywhere near as good as noon hitting perpendicular..........the US Department of Energy has a solar calculator showing how many hours a day over the year you get enough sunlight to actually run the panels....in the Caribbean the answer is 6 so in Wisconsin you might only get 4 really usable hours a day, Nevada 5, Seattle...forget about it..... 2) the panels I'm putting in are ( roughly) 2 x 3 feet...you would need access around all four sides of a panel...you are NOT going to crawl 35 feet across an array to fix a unit in the middle......so lets say you get 35 panels tall ( 70/2) by 2 wide (3 foot with a 3 foot access area between each row = 72/6) or 420 panels. Each puts out 75 watts at max. So you are cranking out 73,500 watt hours, or 73kW. If your local utility buys back ( net metering ) the juice at, say, 20 cents a kWh, you get $4.75 an hour. If you have 4 usable hours a day x 365 x $4.74 you get back something like $20,000 a year. You pay about $7.00 a watt for a panel. The 75 watt panels are, rounding up, $200. each. Times the 420 panels number is $475,000 dollars. Add in about $2,000 for the inverter to change panel volts to power company volts, and maybe another $20,000 for installation you are looking at $500,000 AT LEAST to put in the system you propose. AT $20,000 a year in sales, its 20-25 years payback. Now, you can play with these numbers up and down but you still get the answer of A LOT of money to buy and build and a LONG time till payback.
- Q:What specification of solar panel do I need?
- I okorder.com/ says they have DC to DC solutions from 2 V for most laptops.
- Q:45 Watt Solar Panel Kit Harbor Freight?
- Yes, 80 watts will be nearly twice as useful as 45 watts - but 80 is still a small number. Solar panel systems need an inverter and there's a slight energy loss at the inverter. And, if you want to use the day's energy at night, you'll need a battery or two. And every time you move energy into or out of a battery, you lose a little of the energy. All this is to say that you need to sum up the wattage of your appliances and add a fudge factor to accommodate for the losses. I looked at the kit and was moderately impressed. $200/45=$4.44/watt; that's a reasonable price but the links I left below talk of prices as low as $2.58/watt. Also the Harbor Freight kit doesn't contain an 'inverter' which you would have to buy. Also the wattage advertised for any solar panel assumes the thing is clean and pointed right at the sun on a clear day.
- Q:what is a solar panel?
- A solar panel is essentially a battery charger that transforms sunlight into an electrical DC (direct current)charge.
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