[ ]   [ ]   [ ]                        [ ]      [ ]   [ ]

NETFLIX - Manbird - Feb 24, 2021 - 10:51pm
 
Steven Wilson - westslope - Feb 24, 2021 - 6:42pm
 
COVID-19 - Lazy8 - Feb 24, 2021 - 6:10pm
 
RP works great with LMS - SqueezeGuy - Feb 24, 2021 - 4:04pm
 
Radio Paradise Comments - miamizsun - Feb 24, 2021 - 2:54pm
 
World Music - deltaindia - Feb 24, 2021 - 2:47pm
 
Mars Exploration Rover Mission Status - R_P - Feb 24, 2021 - 2:33pm
 
volcano! - geoff_morphini - Feb 24, 2021 - 1:52pm
 
Gardeners Corner - westslope - Feb 24, 2021 - 1:33pm
 
ALAC Stream Links? - rwyatt - Feb 24, 2021 - 1:32pm
 
Regarding cats - westslope - Feb 24, 2021 - 1:23pm
 
I am Thinking of: - oldviolin - Feb 24, 2021 - 1:20pm
 
Climate Change - NoEnzLefttoSplit - Feb 24, 2021 - 1:05pm
 
How's the weather? - GeneP59 - Feb 24, 2021 - 12:59pm
 
Baseball, anyone? - ScottFromWyoming - Feb 24, 2021 - 12:55pm
 
Photography Forum - Your Own Photos - deltaindia - Feb 24, 2021 - 12:41pm
 
Race in America - R_P - Feb 24, 2021 - 11:37am
 
Crazy conspiracy theories - R_P - Feb 24, 2021 - 11:28am
 
Acoustic Guitar - rhahl - Feb 24, 2021 - 11:16am
 
Capitalism and Consumerism... now what? - ScottFromWyoming - Feb 24, 2021 - 10:23am
 
Offline Cache not working anymore - jarro - Feb 24, 2021 - 9:26am
 
Trump - westslope - Feb 24, 2021 - 9:05am
 
The No Phone Zone - Proclivities - Feb 24, 2021 - 6:56am
 
LeftWingNutZ - islander - Feb 24, 2021 - 6:35am
 
Today in History - Red_Dragon - Feb 24, 2021 - 5:06am
 
Those Lovable Policemen - haresfur - Feb 24, 2021 - 12:55am
 
The All-Things Beatles Forum - kurtster - Feb 23, 2021 - 10:54pm
 
Vinyl Only Spin List - kurtster - Feb 23, 2021 - 7:14pm
 
American Justice - Red_Dragon - Feb 23, 2021 - 6:49pm
 
Questions. - Red_Dragon - Feb 23, 2021 - 6:32pm
 
Movie Quote - Antigone - Feb 23, 2021 - 3:56pm
 
Name My Band - rgio - Feb 23, 2021 - 12:26pm
 
• • • BRING OUT YOUR DEAD • • •  - sirdroseph - Feb 23, 2021 - 12:18pm
 
Marijuana: Baked News. - JrzyTmata - Feb 23, 2021 - 12:05pm
 
The Obituary Page - cc_rider - Feb 23, 2021 - 9:52am
 
• • • The Once-a-Day • • •  - Proclivities - Feb 23, 2021 - 9:36am
 
Bug Reports & Feature Requests - jarro - Feb 23, 2021 - 8:53am
 
Counting with Pictures - Proclivities - Feb 23, 2021 - 6:46am
 
Automotive Lust - kurtster - Feb 22, 2021 - 5:29pm
 
Photos you have taken of yourself - Ohmsen - Feb 22, 2021 - 4:46pm
 
Messages in a bottle. - Ohmsen - Feb 22, 2021 - 4:33pm
 
What did you have for lunch? - Ohmsen - Feb 22, 2021 - 4:03pm
 
2020 Elections - R_P - Feb 22, 2021 - 12:51pm
 
Ted Cruz - ScottFromWyoming - Feb 22, 2021 - 12:47pm
 
Trump Lies - R_P - Feb 22, 2021 - 12:09pm
 
Israel - R_P - Feb 22, 2021 - 11:47am
 
What is the meaning of this? - GeneP59 - Feb 22, 2021 - 9:19am
 
Brave Browser - rgio - Feb 22, 2021 - 8:12am
 
Pernicious Pious Proclivities Particularized Prodigiously - Red_Dragon - Feb 22, 2021 - 6:16am
 
YouTube: Music-Videos - Steely_D - Feb 21, 2021 - 12:38pm
 
Kodi Addon - ScottFromWyoming - Feb 21, 2021 - 11:58am
 
Great Old Songs You Rarely Hear Anymore - Zep - Feb 21, 2021 - 11:53am
 
songs that ROCK! - rhahl - Feb 21, 2021 - 10:44am
 
the Todd Rundgren topic - miamizsun - Feb 21, 2021 - 10:16am
 
Madonna's latest - miamizsun - Feb 21, 2021 - 8:15am
 
New Music - Proclivities - Feb 21, 2021 - 6:38am
 
Guns - Red_Dragon - Feb 20, 2021 - 8:10pm
 
Get the Quote - Red_Dragon - Feb 20, 2021 - 5:30pm
 
Career Opportunities - GeneP59 - Feb 20, 2021 - 4:05pm
 
Thanks, Grizzly Bear! - Red_Dragon - Feb 20, 2021 - 1:17pm
 
Outstanding Covers - sirdroseph - Feb 20, 2021 - 9:28am
 
Mixtape Culture Club - Lazy8 - Feb 20, 2021 - 9:26am
 
Queen - Red_Dragon - Feb 20, 2021 - 6:31am
 
Classical Music - rhahl - Feb 19, 2021 - 6:47am
 
what the hell, miamizsun? - sunybuny - Feb 19, 2021 - 5:58am
 
A Brave Woman - sirdroseph - Feb 19, 2021 - 5:23am
 
Whatever happened to Taco Wagon? - miamizsun - Feb 19, 2021 - 4:45am
 
Immigration - sirdroseph - Feb 19, 2021 - 4:39am
 
Terrorist Watch! - sirdroseph - Feb 19, 2021 - 3:17am
 
Questions I'd like to ask at tonight's debate - sirdroseph - Feb 19, 2021 - 3:12am
 
Republican Party - R_P - Feb 18, 2021 - 8:24pm
 
I play the drums... - KarmaKarma - Feb 18, 2021 - 8:04pm
 
NASA & other news from space - GeneP59 - Feb 18, 2021 - 6:30pm
 
China - Ohmsen - Feb 18, 2021 - 4:17pm
 
Pictures you have taken of your feet. *snort* - Ohmsen - Feb 18, 2021 - 3:39pm
 
Index » Regional/Local » USA/Canada » Solar / Wind / Geothermal / Efficiency Energy Page: 1, 2, 3 ... 38, 39, 40  Next
Post to this Topic
R_P

R_P Avatar



Posted: Feb 17, 2021 - 11:27am

Energy "independence"
The crisis highlighted a deeper warning for power systems throughout the country. Electric grids can be engineered to handle a wide range of severe conditions — as long as grid operators can reliably predict the dangers ahead. But as climate change accelerates, many electric grids will face novel and extreme weather events that go beyond the historical conditions those grids were designed for, putting the systems at risk of catastrophic failure.

westslope

westslope Avatar

Location: BC sage brush steppe


Posted: Feb 17, 2021 - 7:48am

500 Walmarts forced to close due to the weather?   

Now we know that storm is serious!  
westslope

westslope Avatar

Location: BC sage brush steppe


Posted: Feb 17, 2021 - 6:59am



 Proclivities wrote:


 westslope wrote:
Texas wind turbines freeze as Texas orders rolling black outs

Huh!?!!   

Should we Canadians order care packages of white lithium grease and send them to Texas? Or do Texans need lessons in risk management? 

I would really like somebody familiar with the technology of these wind turbines to explain to me how they managed to freeze. I do not recall wind turbines in cold oceans such as the North Atlantic freezing.

 
Apparently, wind turbines used in predictably-cold locations can have heating systems installed in them for their gearboxes and other components.  The present temperatures in many parts of Texas are well below normal ranges for those areas, such an idea may never have come up for them.

Somewhat interesting article:  Wind Energy in Cold Climates
 

Thanks Proclivities.   The Natural Resource Canada ministry website is informative.  I have learned a lot about wind turbines and Texas grid management over the past couple of days.  

I gather that wind turbines can be cold weather-proofed like just about everything else.

Some US pundits appear to have a negative view of Texas management.  According to Julian Lee at bloomberg.com, Texan politicians may be blaming green energy but apparently conventional sources were impacted even harder.   

Blame Texas Exceptionalism For This Crisis, Not Green Energy
 - Julian Lee, Bloomberg
It’s time the state prepared its power supply for more cold winters.


Two reflections:

1.  Given the numbers I am hearing/reading, Texas did a bad job of risk management.    People died.  

2.  When are supposedly educated, bright Americans going to take anthropogenic climate disruption seriously?  
haresfur

haresfur Avatar

Location: The Golden Triangle
Gender: Male


Posted: Feb 15, 2021 - 10:41pm



 Proclivities wrote:


 westslope wrote:
Texas wind turbines freeze as Texas orders rolling black outs

Huh!?!!   

Should we Canadians order care packages of white lithium grease and send them to Texas? Or do Texans need lessons in risk management? 

I would really like somebody familiar with the technology of these wind turbines to explain to me how they managed to freeze. I do not recall wind turbines in cold oceans such as the North Atlantic freezing.

 
Apparently, wind turbines used in predictably-cold locations can have heating systems installed in them for their gearboxes and other components.  The present temperatures in many parts of Texas are well below normal ranges for those areas, such an idea may never have come up for them.

Somewhat interesting article:  Wind Energy in Cold Climates
 
I read Texas has a nuke shutdown, too. You would think those things could stay warm enough.

ScottFromWyoming

ScottFromWyoming Avatar

Location: Powell
Gender: Male


Posted: Feb 15, 2021 - 9:01pm



 Manbird wrote:


 westslope wrote:
-Texas wind turbines BAND NAME freeze as Texas orders -rolling black outs BAND NAME



 


Manbird

Manbird Avatar

Location: Oroville, Ca
Gender: Male


Posted: Feb 15, 2021 - 5:31pm



 westslope wrote:
-Texas wind turbines BAND NAME freeze as Texas orders -rolling black outs BAND NAME

Huh!?!!   

Should we Canadians order -care packages BAND NAME of -white lithium grease BAND NAME and -send them to Texas BAND NAME Or do -Texans need lessons BAND NAME in risk management? 

I would really like somebody familiar with the technology of these wind turbines to explain to me how they managed to freeze. -I do not recall BAND NAME wind turbines -in cold oceans BAND NAME such as the -North Atlantic freezing BAND NAME.

 


ScottFromWyoming

ScottFromWyoming Avatar

Location: Powell
Gender: Male


Posted: Feb 15, 2021 - 1:25pm



 Proclivities wrote:


 westslope wrote:
Texas wind turbines freeze as Texas orders rolling black outs

Huh!?!!   

Should we Canadians order care packages of white lithium grease and send them to Texas? Or do Texans need lessons in risk management? 

I would really like somebody familiar with the technology of these wind turbines to explain to me how they managed to freeze. I do not recall wind turbines in cold oceans such as the North Atlantic freezing.

 
Apparently, wind turbines used in predictably-cold locations can have heating systems installed in them for their gearboxes and other components.  The present temperatures in many parts of Texas are well below normal ranges for those areas, such an idea may never have come up for them.

Somewhat interesting article:  Wind Energy in Cold Climates
 

I imagine the ramifications of even a little more ice on one blade than another could be catastrophic.
Proclivities

Proclivities Avatar

Location: Paris of the Piedmont
Gender: Male


Posted: Feb 15, 2021 - 1:09pm



 westslope wrote:
Texas wind turbines freeze as Texas orders rolling black outs

Huh!?!!   

Should we Canadians order care packages of white lithium grease and send them to Texas? Or do Texans need lessons in risk management? 

I would really like somebody familiar with the technology of these wind turbines to explain to me how they managed to freeze. I do not recall wind turbines in cold oceans such as the North Atlantic freezing.

 
Apparently, wind turbines used in predictably-cold locations can have heating systems installed in them for their gearboxes and other components.  The present temperatures in many parts of Texas are well below normal ranges for those areas, such an idea may never have come up for them.

Somewhat interesting article:  Wind Energy in Cold Climates
westslope

westslope Avatar

Location: BC sage brush steppe


Posted: Feb 15, 2021 - 8:28am

Texas wind turbines freeze as Texas orders rolling black outs

Huh!?!!   

Should we Canadians order care packages of white lithium grease and send them to Texas? Or do Texans need lessons in risk management? 

I would really like somebody familiar with the technology of these wind turbines to explain to me how they managed to freeze. I do not recall wind turbines in cold oceans such as the North Atlantic freezing.

R_P

R_P Avatar



Posted: Aug 6, 2020 - 7:41pm

China poised to power huge growth in global offshore wind energy
islander

islander Avatar

Location: Seattle
Gender: Male


Posted: May 20, 2020 - 7:18am



 Red_Dragon wrote:


 islander wrote:

Interesting, but there just isn't much energy available in a system like that. Triboelectrics had a bit of a burst a few years ago, but energy yields are tiny.  I spend a lot of time managing people's expectations for solar as it is now, I can't wait to see what I get when they find this article. 

 

To whom should I send it? 

 
info@dev.nul

Red_Dragon

Red_Dragon Avatar



Posted: May 20, 2020 - 6:52am



 islander wrote:

Interesting, but there just isn't much energy available in a system like that. Triboelectrics had a bit of a burst a few years ago, but energy yields are tiny.  I spend a lot of time managing people's expectations for solar as it is now, I can't wait to see what I get when they find this article. 

 

To whom should I send it? 
islander

islander Avatar

Location: Seattle
Gender: Male


Posted: May 20, 2020 - 6:43am



 Red_Dragon wrote:
 
Interesting, but there just isn't much energy available in a system like that. Triboelectrics had a bit of a burst a few years ago, but energy yields are tiny.  I spend a lot of time managing people's expectations for solar as it is now, I can't wait to see what I get when they find this article. 

Red_Dragon

Red_Dragon Avatar



Posted: May 20, 2020 - 5:16am

New solar panels created by Chinese researchers take energy from the friction of falling raindrops, as well as the sun, so it’s an effective source of renewable energy all year round.
Red_Dragon

Red_Dragon Avatar



Posted: Jan 2, 2020 - 3:48pm

Update On Wind Turbines and Birds
ColdMiser

ColdMiser Avatar

Location: On the Trail
Gender: Male


Posted: Nov 22, 2019 - 6:50am



 cc_rider wrote:


 haresfur wrote:


 cc_rider wrote:


 haresfur wrote:
a friend worked for a company that had a very efficient generator for turning heat from a solar tracking mirror into electricity. the cool thing was that it could use any heat source so they could park the mirror at night over a gas flame and continue to generate

the company failed because of cash flow, not because of the technology
 
The idea is pretty simple: use focused solar energy to heat water (or other carrier: I've heard liquid sodium is ideal) to make super-heated steam to power turbines. At night just use a gas burner or excess heat from a cement kiln or whatever.  The big solar arrays I've heard about have a problem with too much heat. They have to de-focus the mirrors to keep from burning up the piping.

A big problem is birds, though. As you get closer to the 'furnace', the solar rays get more focused, i.e. hotter. Apparently it'll vaporize anything that gets too close. Your Thanksgiving turkey is ready in three seconds flat though.
c.

 

Actually, the neat thing was that their system was much simpler. The sunlight was focused onto a linear-drive Stirling engine. Basically a shaft held by bearings that looked like the inserts for 45 records (I assume everyone here are old farts and I don't need to explain what those are). In a nutshell, the heat drives the shaft back and forth through a coil, generating electricity. The parts were simple enough that they thought they could repurpose a closed auto manufacturing plant for production. If I recall, their biggest unit was 3 kW.

I can't remember the conversion efficiency, but it was significantly higher than photovoltaic panels and didn't use fancy silicon. Also solar panel efficiency degrades with time. The tradeoff is having the disk reflector and having to keep it tracking the sun.

They were selling units to the military as generators using diesel as the heat source. More efficient than conventional generators. Not that the price is significant to them, but it turns out driving fuel trucks around a war zone is a dangerous job and the less fuel you move, the safer your troops. As a sideline, they could essentially run the system in reverse as a refrigerator. You can get people to stay hydrated with 30 C water but it's really hard to get them to drink 40 C water.

The boss was trying to set up systems in little villages in Bangladesh. One person power companies that could make a living charging cell phones, etc.
 Sounds really cool. It's a shame it's so hard to get alternative energy projects going. To be fair, they require a big initial investment.
c.


 
Good point, you can lead a horse to water but you can't make him pay for the drink

cc_rider

cc_rider Avatar

Location: Bastrop
Gender: Male


Posted: Nov 21, 2019 - 1:05pm



 haresfur wrote:


 cc_rider wrote:


 haresfur wrote:
a friend worked for a company that had a very efficient generator for turning heat from a solar tracking mirror into electricity. the cool thing was that it could use any heat source so they could park the mirror at night over a gas flame and continue to generate

the company failed because of cash flow, not because of the technology
 
The idea is pretty simple: use focused solar energy to heat water (or other carrier: I've heard liquid sodium is ideal) to make super-heated steam to power turbines. At night just use a gas burner or excess heat from a cement kiln or whatever.  The big solar arrays I've heard about have a problem with too much heat. They have to de-focus the mirrors to keep from burning up the piping.

A big problem is birds, though. As you get closer to the 'furnace', the solar rays get more focused, i.e. hotter. Apparently it'll vaporize anything that gets too close. Your Thanksgiving turkey is ready in three seconds flat though.
c.

 

Actually, the neat thing was that their system was much simpler. The sunlight was focused onto a linear-drive Stirling engine. Basically a shaft held by bearings that looked like the inserts for 45 records (I assume everyone here are old farts and I don't need to explain what those are). In a nutshell, the heat drives the shaft back and forth through a coil, generating electricity. The parts were simple enough that they thought they could repurpose a closed auto manufacturing plant for production. If I recall, their biggest unit was 3 kW.

I can't remember the conversion efficiency, but it was significantly higher than photovoltaic panels and didn't use fancy silicon. Also solar panel efficiency degrades with time. The tradeoff is having the disk reflector and having to keep it tracking the sun.

They were selling units to the military as generators using diesel as the heat source. More efficient than conventional generators. Not that the price is significant to them, but it turns out driving fuel trucks around a war zone is a dangerous job and the less fuel you move, the safer your troops. As a sideline, they could essentially run the system in reverse as a refrigerator. You can get people to stay hydrated with 30 C water but it's really hard to get them to drink 40 C water.

The boss was trying to set up systems in little villages in Bangladesh. One person power companies that could make a living charging cell phones, etc.
 Sounds really cool. It's a shame it's so hard to get alternative energy projects going. To be fair, they require a big initial investment.
c.


haresfur

haresfur Avatar

Location: The Golden Triangle
Gender: Male


Posted: Nov 21, 2019 - 12:49pm



 cc_rider wrote:


 haresfur wrote:
a friend worked for a company that had a very efficient generator for turning heat from a solar tracking mirror into electricity. the cool thing was that it could use any heat source so they could park the mirror at night over a gas flame and continue to generate

the company failed because of cash flow, not because of the technology
 
The idea is pretty simple: use focused solar energy to heat water (or other carrier: I've heard liquid sodium is ideal) to make super-heated steam to power turbines. At night just use a gas burner or excess heat from a cement kiln or whatever.  The big solar arrays I've heard about have a problem with too much heat. They have to de-focus the mirrors to keep from burning up the piping.

A big problem is birds, though. As you get closer to the 'furnace', the solar rays get more focused, i.e. hotter. Apparently it'll vaporize anything that gets too close. Your Thanksgiving turkey is ready in three seconds flat though.
c.

 

Actually, the neat thing was that their system was much simpler. The sunlight was focused onto a linear-drive Stirling engine. Basically a shaft held by bearings that looked like the inserts for 45 records (I assume everyone here are old farts and I don't need to explain what those are). In a nutshell, the heat drives the shaft back and forth through a coil, generating electricity. The parts were simple enough that they thought they could repurpose a closed auto manufacturing plant for production. If I recall, their biggest unit was 3 kW.

I can't remember the conversion efficiency, but it was significantly higher than photovoltaic panels and didn't use fancy silicon. Also solar panel efficiency degrades with time. The tradeoff is having the disk reflector and having to keep it tracking the sun.

They were selling units to the military as generators using diesel as the heat source. More efficient than conventional generators. Not that the price is significant to them, but it turns out driving fuel trucks around a war zone is a dangerous job and the less fuel you move, the safer your troops. As a sideline, they could essentially run the system in reverse as a refrigerator. You can get people to stay hydrated with 30 C water but it's really hard to get them to drink 40 C water.

The boss was trying to set up systems in little villages in Bangladesh. One person power companies that could make a living charging cell phones, etc.
cc_rider

cc_rider Avatar

Location: Bastrop
Gender: Male


Posted: Nov 21, 2019 - 9:02am



 haresfur wrote:
a friend worked for a company that had a very efficient generator for turning heat from a solar tracking mirror into electricity. the cool thing was that it could use any heat source so they could park the mirror at night over a gas flame and continue to generate

the company failed because of cash flow, not because of the technology
 
The idea is pretty simple: use focused solar energy to heat water (or other carrier: I've heard liquid sodium is ideal) to make super-heated steam to power turbines. At night just use a gas burner or excess heat from a cement kiln or whatever.  The big solar arrays I've heard about have a problem with too much heat. They have to de-focus the mirrors to keep from burning up the piping.

A big problem is birds, though. As you get closer to the 'furnace', the solar rays get more focused, i.e. hotter. Apparently it'll vaporize anything that gets too close. Your Thanksgiving turkey is ready in three seconds flat though.
c.

haresfur

haresfur Avatar

Location: The Golden Triangle
Gender: Male


Posted: Nov 20, 2019 - 4:59am

a friend worked for a company that had a very efficient generator for turning heat from a solar tracking mirror into electricity. the cool thing was that it could use any heat source so they could park the mirror at night over a gas flame and continue to generate

the company failed because of cash flow, not because of the technology
Page: 1, 2, 3 ... 38, 39, 40  Next