nc

One other thing just because you have a system listed as 1000 watts and they are in the sun for 8 hours doesn't mean they produce 8000 watts or 8KW. Wilkes is listed as having 5 to 51/2 sun hours.

http://www.nrel.gov/gis/solar.html

http://www.nrel.gov/gis/ima...012-01.jpg

No way you have that right.

Go back and read the link again that is the amount you can generate in a year.

Find your city in the map and match it to the numbered area.
Let's start with our home, Portland, Oregon. Our city lies within the 1400 band, so 1400 is our number. Multiply the number of kW your system is rated for (we get 4.75 from above) by the number of the map color in your area. For us it's: 4.75 x 1400 = 6650. Next, multiply that number by 0.78. Why 0.78? It represents the percentage of electricity you can expect to capture, based on inverter efficiency, panel performance, and losses from wiring. We calculate: 6650 x 0.78 = 5,178 kWh generated per year.

Crypt's link says to expect a 78% efficiency. So based on that, it would take 33.3 days to generate enough electricity for a year.

That's assuming a 1,000 square foot roof, and North Carolina being a 1700 on their map.

Notice the best panel is 16.4 watts per sq.ft. So 1000 sq.ft = 16.4 kw x 8 hrs. = 131.2 kwh.

How many times does Springy have to get his *** whipped on this subject? Last time he tried to claim a house uses 1.5 KWh a day. When I corrected that number and explained the average is 30KWh a day, he came back with "we've gotten off topic!"

LMAO

Oh springy, give it up. You don't know crap about solar or electricity.

Ok here you go https://solarpowerrocks.com...olar-roof/

You two are using figures based at 100 percent efficiencies. But the truth is solar panels are not 100 percent efficient there are also losses in the batteries and inverters as well and if it is a hot or cloudy day your panels produce even less.

I'm just showing you a study from the University of Oregon. If you don't think the numbers are accurate, feel free to show me what you consider to be a more realistic solar panel.

Springtime123 is going to fail this class. Antithesis is simply failing to input real world data.

antitesis check a real panel. You're off by a factor of > 30 and spring thinks 5 x 400 = 10,000.

I'll have y'all writing 800 word essays for this insubordination.

The average house in the US uses 11,700kWh of electricity in a year:

http://shrinkthatfootprint....onsumption

If a typical roof generates 450kWh in 8 hours, then it takes about 26 days of sunlight to generate enough electricity for a year.

In a year, the US uses 25,451TWh:

https://en.wikipedia.org/wi...ted_States

If we really have 129 billion square feet of roof space, like Crypt said (I didn't look, I'm just taking his word), then at 450kWh in an 8 hour day we could generate 58TWh in a day.

So as long as we had 180 days of sunlight a year, we wouldn't need fossil fuel at all. Throw in a few solar farms to supplement, and we wouldn't even need that many.

@ 25 panels

Backwoods solar has 400 watt panels for about $400.00 each. @5 panels @ 400 watts would equal 10,000 watts wh per hour. That is 10Kwatts wh per hour for 8 hours per day equals 80K watt wh per day. That is enough power to run 3 1500 sq ft homes.

My calculatons are very close. Show me the panels that can do these wonders.