06-24-2017, 05:06 PM
|
#231 (permalink)
|
home of the odd vehicles
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,891
Thanks: 506
Thanked 867 Times in 654 Posts
|
Quote:
Originally Posted by oil pan 4
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
Last edited by rmay635703; 06-24-2017 at 05:16 PM..
|
|
|
Today
|
|
|
Other popular topics in this forum...
|
|
|
06-24-2017, 07:00 PM
|
#232 (permalink)
|
Human Environmentalist
Join Date: Aug 2010
Location: Oregon
Posts: 12,819
Thanks: 4,327
Thanked 4,480 Times in 3,445 Posts
|
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.
|
|
|
The Following User Says Thank You to redpoint5 For This Useful Post:
|
|
06-24-2017, 07:12 PM
|
#233 (permalink)
|
Corporate imperialist
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 11,268
Thanks: 273
Thanked 3,569 Times in 2,833 Posts
|
Peaking generators tend to be natural gas turbine.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
|
|
|
06-25-2017, 12:13 PM
|
#234 (permalink)
|
Master EcoModder
Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935
Thanks: 326
Thanked 1,315 Times in 968 Posts
|
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.
.
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.
.
Global Sea Level Rise Map - Global Warming & Climate Change Impact
.
|
|
|
06-25-2017, 12:26 PM
|
#235 (permalink)
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,720
Thanks: 8,151
Thanked 8,933 Times in 7,375 Posts
|
11,600 years ago the sea level rose 300 feet. The North Sea was all inhabitated land.
|
|
|
The Following 2 Users Say Thank You to freebeard For This Useful Post:
|
|
06-25-2017, 01:35 PM
|
#236 (permalink)
|
Master EcoModder
Join Date: Jun 2008
Location: Earth
Posts: 5,209
Thanks: 225
Thanked 811 Times in 594 Posts
|
Quote:
Originally Posted by freebeard
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
Last edited by jamesqf; 06-25-2017 at 01:42 PM..
|
|
|
06-25-2017, 01:43 PM
|
#237 (permalink)
|
Corporate imperialist
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 11,268
Thanks: 273
Thanked 3,569 Times in 2,833 Posts
|
11,600 years ago there was about 10,000,000 more square miles of land.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
|
|
|
06-25-2017, 05:38 PM
|
#238 (permalink)
|
Master EcoModder
Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935
Thanks: 326
Thanked 1,315 Times in 968 Posts
|
Quote:
Originally Posted by jamesqf
|
North West USA still has lots of hydro
.
.
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%..
.
.
A quick estimate of area under the graph gives me 22% of nameplate for the week for the wind farms.
.
They have a ton of hydro which actually make the wind farms, intermittent as they are, still pretty useful.
|
|
|
The Following User Says Thank You to sendler For This Useful Post:
|
|
06-25-2017, 05:48 PM
|
#239 (permalink)
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,720
Thanks: 8,151
Thanked 8,933 Times in 7,375 Posts
|
Curiously both charts ascribe a color for solar, but a 0% slice.
|
|
|
06-25-2017, 06:06 PM
|
#240 (permalink)
|
Master EcoModder
Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935
Thanks: 326
Thanked 1,315 Times in 968 Posts
|
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.
|
|
|
|