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Old 09-23-2018, 11:05 PM   #2981 (permalink)
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There is a campaign claiming that Arizona is so sunny we should produce more solar power than any other state. I think AZ is ranked third nationwide. I spent hours and hours researching this law they are trying to pass and finally decided to fulfill some of my adult responsibilities, although I probably watched cat videos instead.

Arizona may have more sun than any other state, I tried to find out for sure, but it does not seem that anyone has tried to compare entire states.

In alphabetic order (hopefully):

Please note that the colors used for each state do not correlate with other states. Sunny states and dim states use the same colors, so you need to look closer.



















Arizona ranges from 6.3 – 8.3 kWh/m²/Day and honestly every range seems approximately evenly distributed. Call it 7.3?

California goes from 4 – 8.5 and Imperial Valley is sunnier than anywhere else in the United States. It looks like the vast majority of California ranges from 5.8 – 8.5. Ignore Eureka and say the state averages 7.15? The state is far larger than Arizona with far too many people. I do not see any reason for California to not try to meet their power needs with solar and they have four or five times as many people as Arizona.
I argue that California should produce the most solar energy.
It does.

Florida varies from 4.7 – 6.0, but mostly looks 4.7 – 5.5. 5.1?
Nevada: 5.0 – 8.5. Maybe 6.8?
New England: 3.3 – 4.5. 3.9?
New Jersey: 4.0 – 4.5. 4.3?
North Carolina surprisingly produces more solar energy than Arizona: 4.2 – 4.9. 4.6?
Texas: 4.5 – 8.0: 6.3?
Utah: 3.0 – 7.5: 6.15?

Yes, the Southwest has abundant sunlight, but do you know what else we have in plentiful supply?

Dust and heat.

Neither of those are good for solar power.

“Photovoltaic modules are tested at a temperature of 25 degrees C (STC) – about 77 degrees F., and depending on their installed location, heat can reduce output efficiency by 10-25%.” https://www.civicsolar.com/support/i...l-efficiencies

Mark Rober asked some kids and they installed sprinklers on their solar cells in California, which he put on a timer, and runs once a week: https://www.youtube.com/watch?time_c...&v=a1D-fZP8qJk

Then there is this:

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Old 09-24-2018, 02:05 AM   #2982 (permalink)
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Sounds like you need a state where they get tons of sun but not incredible temperatures all the time across the whole state, maybe some where like new Mexico.
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Old 09-24-2018, 04:15 AM   #2983 (permalink)
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Eastern Oregon?

Sounds like you need a state where they get tons of sun and have the will to act.
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Old 09-24-2018, 09:45 AM   #2984 (permalink)
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Everyone in new Mexico is poor or sending all their money back to mexico.
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Old 09-24-2018, 12:05 PM   #2985 (permalink)
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Cleaning it's something few people comment about solar panels. And a company created a semi automatic device to help clean panels in solar farms.

Well, how often and how exactly do you clean your solar panel ?
Is that risk, depending of the roof ?

Can it be, in some cases, like "self clean", if the clime in a given place has low dust and good rains along the year ?

People always said Sahara desert could supply energy for the entire planet, if a few percentage of it would be used for solar farms. But I imagined how would they find water to clean 15 billion solar panels or more in a clime with sandstorm.
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Old 09-24-2018, 01:34 PM   #2986 (permalink)
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Quote:
Well, how often and how exactly do you clean your solar panel ?
Is that risk, depending of the roof ?
https://en.wikipedia.org/wiki/Self-cleaning_glass
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Old 09-24-2018, 01:59 PM   #2987 (permalink)
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Some years it goes for months raining just enough to get cars dirty.
I imagine that would build up on panels after a while.
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Old 09-24-2018, 03:28 PM   #2988 (permalink)
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It have to be antireflection, to be used in solar panels. If you add a antireflection layer, the antireflex layer will not be selfclean (I presume).

And if it's like self clean oven, it still need to apply a little cloth time to time.

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Old 09-24-2018, 08:31 PM   #2989 (permalink)
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Why is coal still a thing? It is a big part of what keeps us alive. And is forecast on every study that I have seen to increase (like oil and then gas) basicly until we can't get our hands on any more. Projections are guesstimates of course. The second chart is way short on total energy demand compared to other studies I have seen as what will be required to maintain our current exponential growth in world GDP. But it gives a general idea of what I expect. Total world coal consumption to continue to rise slightly for the next 100 years until it too is limited by availability due to diminishing ER/EI. Or a world economic crash probably much sooner.
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World oil projected consumption.
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https://www.instituteforenergyresear...creases-check/
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World coal projected consumption,
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Market Research | Ichor Coal
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Old 09-24-2018, 10:56 PM   #2990 (permalink)
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I read a sci fi story where a kid's mom died in the "Food mines." They turned coal into food?

If you could turn one form of carbon into another, I am sure there are easier ways of obtaining it than digging miles underground, like maybe taking some nice vegetables and feeding them to animals.

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