Tag: solar panels

How many kilowatt hours of electricity will the solar panels generate in 20 days?

A house with a south-facing roof has photovoltaic panels on the roof. The photovoltaic panels have an efficiency of 10.3 % and occupy an area with dimensions 3.35 m by 8.55 m. The average solar radiation incident on the panels is 305 W/m2, averaged over all conditions for a year. How many kilowatt hours of electricity will the solar panels generate in 20 days?

where can I get free solar panels for my home?

Are there goverment grants for solar panels for residential? I live in New Jersey. USA. Or are there any experimental research companies that will install solar panels for free in return for their research purposes?
I just emailed the US Dept of Energy asking them the same question. Anyone know about the US Dept of Energy? What do they do?

Does solar power have anything to do with physics?

Im doing a 3 minute speech tomorrow for physics and ive left it to the last minute and my question is "Is solar power really worth the money?"
I am planning to just go on about stuff like how long it will take for solar panels to pay themselves off with the money I save and stuff about returning to the grid…..
Do this really have anything to do with physics? PLEASE HELP

What is the probability that none of the houses have solar panels to generate electricty?

Using a survey conducted in Winter 2009, it was estimated that only 1% of New Zealanders have solar panels on their houses to generate electricity. Consider a random sample of 20 New Zealand households.

a) What is the probability that at least one of them has solar panels to generate electricity?
b) What is the probability that none of them have solar panels to generate electricity?

Do you need to pay for electricity if you have solar panels?

I am in the market for buying a home. There is one for salke that actually has solar panels on top. How are they used? Do you need to pay for gas and electric still. Does it really light up the house and keep it warm. WHat about the AC keeping hte house cool in the summer does it work for that too? Please explain in solar for dummy terms. I haveno clue about solar panels other thatn the fact that it needs sunlight to run.

Can you solder solar panels together to get more power?

I have getting solar panels from these solar lights at Walmart. Well some of them are broken, but the solar panels are still in good shape. So I wanting to put the together to maked a large solar panel big en ought to power a laptop
If you can how do you solder them together? Do you link them together just like a double A’s?

Does anyone know anything about solar panels?

We just recenlty purchased a bank owned home and the previous owners left no information behind regarding the solar panels which consume the whole south side of the house. We are not sure what they are hooked up to, how they work, how to tell if they are working or even how to use them. Finding someone in our area with expertise on solar panels is proving to be a challenge. Any suggestions or advice would be greatly appreciated.