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Old 06-24-2017, 04:06 PM   #231 (permalink)
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Quote:
Originally Posted by oil pan 4 View Post
More flyash for making concrete.
There are at least 4 cement and sinter block places not far from the plants

The desire to continue building plants is because the power company is guaranteed someone will pay for their construction with a profit on top.

Our area was about 50% hydro in the 80s and our power consumption was higher back then because we still had industry,

Too bad we can't punish investors for stupid decisions


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Old 06-24-2017, 06:00 PM   #232 (permalink)
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It seems we would benefit from developing efficient and cost effective energy storage apart from the need to smooth out variations in renewable power generation.

We already have variable demand, and peak power generation is very expensive. Perhaps it could be cheaper to store excess generation capacity during off-peak hours and release the energy during peak usage, avoiding the need to build peaking generators.
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Old 06-24-2017, 06:12 PM   #233 (permalink)
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Peaking generators tend to be natural gas turbine.
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Old 06-25-2017, 11:13 AM   #234 (permalink)
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Sea level study: James Hansen issues dire climate warning.
.
The latest Nat Geo has a similar cover story explaining the reaserch showing how warm ocean water is undercutting the Antarctic ice shelves and glacial outlets from the bottom.
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This sea level rise world map is interesting. Look around as you select back and forth between 0 and 3 meters rise. Goodbye Bangladesh, Netherlands Denmark and Hamburg Germany. Peterborough UK. Rovigo and Ferrara Italy. Cairo Egypt. Hong Kong to Guangzhou , Shanghai to Yancheng. Amazon river basin. Fort Meyers, Tampa, the Meadowlands NJ USA. We should have abandoned any damamged areas of New Orleans when it got wrecked the first time.
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Global Sea Level Rise Map - Global Warming & Climate Change Impact
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Old 06-25-2017, 11:26 AM   #235 (permalink)
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11,600 years ago the sea level rose 300 feet. The North Sea was all inhabitated land.
 
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Old 06-25-2017, 12:35 PM   #236 (permalink)
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Quote:
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My personal electricity needs are met by 5.3/kWh power from the same Grand Coulee Dam that Woody Guthrie sang about.
You might be surprised at how much of that hydro power actually comes from wind - with the dams serving to balance load. 5100 MW, per this: https://www.bpa.gov/Projects/Initiat...s/default.aspx

Quote:
Originally Posted by freebeard
11,600 years ago the sea level rose 300 feet. The North Sea was all inhabitated land.
Depends on your definition of "inhabited". It's a lot harder to pack up and move in a world with a population of 7 billion or so, than in one where the population is somewhere between 1 and 10 million: https://en.wikipedia.org/wiki/World_...eep_prehistory

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Old 06-25-2017, 12:43 PM   #237 (permalink)
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11,600 years ago there was about 10,000,000 more square miles of land.
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Old 06-25-2017, 04:38 PM   #238 (permalink)
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Quote:
Originally Posted by jamesqf View Post
You might be surprised at how much of that hydro power actually comes from wind - with the dams serving to balance load. 5100 MW, per this: https://www.bpa.gov/Projects/Initiat...s/default.aspx
North West USA still has lots of hydro
.

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They almost showed me what I have been searching for: a year total or average % of nameplate output for a wind farm. They show 7day rolling samples in 5 minute slices. It had one good day making from 50-80% of name plate And an hour at 60% the next day. And 5 days between 0 and 15%..
.

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A quick estimate of area under the graph gives me 22% of nameplate for the week for the wind farms.
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They have a ton of hydro which actually make the wind farms, intermittent as they are, still pretty useful.
 
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Old 06-25-2017, 04:48 PM   #239 (permalink)
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Curiously both charts ascribe a color for solar, but a 0% slice.
 
Old 06-25-2017, 05:06 PM   #240 (permalink)
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Too small to see. Pacific North West USA might be one of the worst places in the world for solar. Lots of rain. Great for hydro.

 
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