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Old 02-25-2018, 07:41 AM   #1011 (permalink)
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I had wondered about the durability of wind turbines. This study shows that there will be large reductions in capacity factor in only 10 years if you don't take the maximum effort to repair them. Which the UK is not doing very well compared to Denmark for example.
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https://stopthesethings.files.wordpr...s-19-12-12.pdf
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And offshore windfarms start with a much higher capacity factor but fall to below onshore values in just 8 years losing half of their capacity in that time. Due to a much harsher operating environment and greater difficulty of maintenance?
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It would be interesting to see how much ongoing expense Denmark wind farm operators are spending on upkeep as a percentage of the original capital cost.
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I wonder what declining output with age for the turbines in a brutally snowy climate like mine would look like where the best wind is also in areas like the Tug Hill Plateu at the end of Lake Ontario which is pummeled by 150-200 inches of wet lake effect snow every winter. Probably close to the degradation rates of off shore wind.
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Wind energy is not renewable. It is rebuildable. As long as we have the affordable liquid fossil fuel for the gigantic machines that are required to install and repair these towering mega-turbines.
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Old 02-25-2018, 10:30 AM   #1012 (permalink)
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I will have to check these community solar projects out. It seems like a loop hole for an investment group to make money by milking the very generous incentives that are forced on the utility company that requires them to make "the meter run backwards" for residents with rooftop solar. What these companies do is build a comercial grid scale solar farm. And then rather than selling the energy to the grid at the commercial supply rate, which is 1/3 the final house metered rate due to line charges and taxes, as it should, they have been somehow allowed to 'Put household names" on portions of the output to make those meters get billed as if the were running backwards. But the home owners don't buy and own their portion of the solar farm. They rent it under contract. And are only paid 10% of the electrical savings for the privilage of using their name and address. So the solar company can pocket money at twice the rate for selling to the grid at the expense of the utlity company.
Apparently Renovus allows you to buy. I will have to check the price. If it is $3/ Watt then that is on par with what a contractor would charge you to install a complete grid tie system on your own roof. Though you can buy the parts for $1.60/ Watt. And get back 55% from state and national rebates.
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Renovus Solar Community Solar - Solar power for everyone!
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Trusolar is rent only and pays only 10% of your electrc bill the first year and 5% per year after that. While they nearly triple the amount that they would otherwise get paid for their solar production from $0.04 to effectively $0.11/ kWh.
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https://trusolar.com/faq-1/
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Old 02-25-2018, 01:13 PM   #1013 (permalink)
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I had wondered about the durability of wind turbines...Due to a much harsher operating environment and greater difficulty of maintenance?
R.B. Fuller's suggestion was to put them indoors. Seriously.

An hemisphere with an oculus and a perimeter vent has internal aerodynamics that can be exploited. The velocity over the top is exceeds the local average.

It would be noisy inside, but might make a good greenhouse.
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Old 02-25-2018, 07:44 PM   #1014 (permalink)
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Screw that I will buy my own solar panels. The electrical co-op here pay consumption rate for solar power which is 8 cents per kwh.
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Old 02-26-2018, 12:29 AM   #1015 (permalink)
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When are you going to jump in? Here's what's on the horizon: Nanoscale infrared antennae harvests re-radiation

https://inhabitat.com/solar-panels-work-at-night/

Stepping blue down to a more efficient color for normal cells

https://www.sciencealert.com/this-ne...nel-efficiency
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Old 02-26-2018, 10:35 AM   #1016 (permalink)
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I used to visualize some sci fi show where there are only green lights--except in the greenhouse, which has red, purple, magenta, or whatever.

Somewhere I shared people making farming towers that were supposedly revolutionary because they used LEDs, even though that math does not work out at all. There was one comment that they did not need full-spectrum lights. Great. Red and blue LEDs, not green, that makes all of the difference!

Did Turnip undo all of the coal-related regulations President Obama signed into law?
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Old 02-26-2018, 01:48 PM   #1017 (permalink)
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I used to visualize some sci fi show where there are only green lights--except in the greenhouse, which has red, purple, magenta, or whatever.
Hitchhiker's Guide To Teh Galaxy, episode 4.

Quote:
Somewhere I shared people making farming towers that were supposedly revolutionary because they used LEDs, even though that math does not work out at all. There was one comment that they did not need full-spectrum lights. Great. Red and blue LEDs, not green, that makes all of the difference!
It's a Bruce Sterling future — that arrived first in Colorado.

Quote:
Did Turnip undo all of the coal-related regulations President Obama signed into law?
My friends with Trump Derangement Syndrome are starting to relax. He made a joke the other day about 'clean coal'. I countered with Thorium.
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Old 02-26-2018, 02:19 PM   #1018 (permalink)
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[Scientist sees a homeowner taking selfies in the driveway]
"Excuse me, ma'am, do you mind if we create a black hole in your back yard?"
"Is that nuclear?"
"No Ma'am."
"Whatever."
[Homeowner resumes taking selfies]

This one:

I am not sure that one is adequate. TDS? Nah. We need to come up with something like Turnip Unwashed Ripoff Derangement Syndrome.
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Old 02-26-2018, 02:28 PM   #1019 (permalink)
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Quote:
Originally Posted by freebeard View Post
My friends with Trump Derangement Syndrome are starting to relax.
You still have friends?

I purged all the MAGATS (MAGA Trump Supporters, including long-time best friends) from my life to the extent possible a year ago and since every passing day brings a new MAGAT atrocity it affirms that I made the right choice.
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Old 02-26-2018, 03:30 PM   #1020 (permalink)
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I am not sure that one is adequate. TDS? Nah. We need to come up with something like Turnip Unwashed Ripoff Derangement Syndrome.
Why for do we need more ad hominum?

Frank Lee — Actually it's one friend and his (rather uncharitable) wife. I venture into the UofO bubble, and what do I find? Nazi-punchers.

It's lonely here in the middle. But there are voices here like Tim Pool and H. A. Goodman and I'm Okay with those on the near Left and near Right. I'm more concerned with the Libertarian-Authoritarian axis and I'm in the middle there too.

Free helicopter rides, anyone?

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