Silicon Solar Monocrystalline Solar Panels 190w

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Silicon Solar Monocrystalline Solar Panels 190w

Maximum power(Pm)

190W

195W

200W

240W

245W

250W

250W

255W

260W

Voltage at max. Power  (V)

36.8V

37.0V

37.2V

29.8V

30.0V

29.7V

30.4V

30.6V

30.8V

Current at max. power (A)

5.17A

5.27A

5.38A

8.05A

8.17A

8.43A

8.23A

8.34A

8.44A

Open-Circuit(V)

44.9V

45.1V

45.3V

37.9V

38.2V

37.8V

37.5V

37.6V

37.7V

Short-Circuit (A)

5.54A

5.63A

5.72A

8.58A

8.71A

8.75A

8.72A

8.81A

8.90A

Power Temp.Coeff(/℃)

-0.43%

-0.47%

-0.48%

Current Temp.Coeff(/℃)

0.04%

0.05%

0.04%

Voltage Temp.Coeff(/℃)

-0.32%

-0.34%

-0.34%

Series Fuse Rating  (A)

12

12

15

Ambient Temp.(/℃)

-40~85

Power tolerance

±3%

NOCT

46℃±2

Max-System Voltage

1000V DC(IEC)/600V DC(UL)

Connector

H+S/MC4/MC4 Compatible

Cell typical and quantity

72pcs Monocrystalline silicon(125×125mm)

60pcs Polycrystalline silicon(156×156mm)

60pcs Monocrystalline silicon(156×156mm)

Dimension

1580×808×35mm

1660×994×45mm

1660×994×45mm

Weight

15.8kg

19.7kg

19.7kg

 

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Q:How do Solar Panels Work?
Solar okorder.com/
Q:have you ever installed solar panels for your home?
Yes I have. We have a little Labrador on the front steps(you know, a thing to hide keys under.) In his mouth is a little lantern that absorbs the solar energy from the panels and it turns on at night. Really saves you money, much more than regular electricity. The bill won't be so high this way, oh, and it's also good for the environment����
Q:Solar panels don't work when it's too hot/sunny?
WHAT? This is far from the truth, IN Scottsdale Arizona a small apartment complex was fitted with solar {photo voltaic cells in the late 70s. Every summer they sold electricity back to the power company. It gets up to 5 fairly often here, and as hot as 23 in the shade. On a roof top it is over 50 in direct sunlight. The opposite is true. When it is cloudy they produce less electricity. They may loose some efficiency when it is very hot, but not enough to make them not work at all, or even enough to really harm the output to any really appreciable extent. A new plastic photovoltaic material that produces about 40-45% of a silicon based solar cell is a neat option as it works when it is very cloudy, you can drive nails through it, and it is flexible. I think these items are kept artificially expensive by big business, but this is just a biased opinion of mine, but as far as not working in extreme heat, NO these solar panels work just fine when it is hot. I am in Phoenix Arizona, and it does not get a whole lot hotter than here. If the cells from the 970s worked OK newer ones are better and will do just fine too. Solar hot water heaters are a slightly different matter as they will over heat the water and the water must be mixed with cooler water, or you can really get into trouble. Maybe this is what he meant. Still I doubt it is enough of an issue to cause the device to be less efficient than a gas water heater, or electric, etc. Maybe he is referring to having to mix cooler water into solar heated water in a solar hot water heater, or some other system, Photovoltaic cells do not have any problems rendering them useless from hot weather on this planet, and in fact, they are used in space and it gets much hotter there.
Q:How many solar panels do you need on your house to power your heater in winter?
Your house, and probably your yard wouldn't be big enough to hold them. I did this exercise once (not doing it again) for someone who wanted to replace his 6hp outboard motor with a solar powered one. The calculations ended up that he would need something like .5 acres of solar panels to get that much energy. Not happening. That said, an passive solar home, can get a significant amount of warmth from the sun directly. But it doesn't work very well at night, when it's coldest. (wonder why that is... probably a climate scientist could help us with that? -- oh, wait. They say warming doesn't have anything to do with the sun.) Edit. I didn't use theoretical stuff to come up with my numbers, I used the claims of actual off-the-shelf solar panels sold by West Marine, calculated the power, and did the math based on existing panels.
Q:Is anyone using small solar panels in their home with any practical results?
I have an active solar heater on my roof. During the winter it comes in handy and heats the house, though we still need to use a gas heater to get the temperature up to a comfortable level.
Q:What kind of batteries to use for a solar panel?
Deep cycle, Golf Cart Batteries. You can get them at a battery store.
Q:How do you connect solar panel?
If that 55-watt panel has an open circuit voltage of 7-8 volts, you may get more efficiency by omitting the charge controller completely, and connecting the panel straight to the battery. 55 watts is marginally too small for a 200 AH battery at 2 volts, by the way.
Q:Could solar panels contribute to global warming?
apparently okorder.com/ <== this is a more lighthearted link. so the problem is not, what color stuff is. the problem is, how much energy can the planet lose? as far as the solar panel, consider, if that same amount of energy fell on the roof, some would be reflected and some would be absorbed. if it falls on a solar panel, some of the energy will get converted to electricity. so there will be less that needs to be radiated and lost. therefore, when they're working, solar panels, even though they're black, produce cooling.
Q:Solar panels require big initial investment, how can I check if the money I save will be more than that?
Only by doing the calculations (figuring out how much you electricity bill is per month now and calculate how much time it will take to get to the figure of your solar panels. Don't forget to add a couple of percentage points per year higher(since when has electrical costs gone down)? and do the addition. That is when you will pay off the solar panels, as their power is free.
Q:how to make your own solar panel?
I do not have the skills to make my own solalr panles even if I want to try it. I see the answer above but cannot understand it. I bought my solar panels from OKorder and it works for me quite well.

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