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More wind energy was installed in 2020 than any other energy source

energy.gov

11–20 of 166 posts

Re: More wind energy was installed in 2020 than any other energy source

#11
post #3

Best news is that cost of these installations is now quite low: less than $1.5 per watt peak. What about capacity utilisation factor of newly installed turbines? Does it trend downwards? Which means, are we close to exhausting potential of wind? PS: It's not, it's actually trending a bit up. Which is explainable because average capacity of a turbine trends up -> the turbine is bigger and taller -> wind blows faster a…

Also, how useful is peak wind power? Often is it not peak?

Re: More wind energy was installed in 2020 than any other energy source

#12
post #3

Best news is that cost of these installations is now quite low: less than $1.5 per watt peak. What about capacity utilisation factor of newly installed turbines? Does it trend downwards? Which means, are we close to exhausting potential of wind? PS: It's not, it's actually trending a bit up. Which is explainable because average capacity of a turbine trends up -> the turbine is bigger and taller -> wind blows faster a…

The short answer scaling heavily favors huge turbines. The taller they are the larger swept area of the blades. More are more wind energy captured. (Good old area = distance squared) And higher up the more consistent the wind, higher the average wind speed, and thus higher capacity factor.

Re: More wind energy was installed in 2020 than any other energy source

#13
post #4

Is there a plan to eliminate coal and gas as big elements in USA's eletricity production?

I think you guys need gas as peak power long time but coal is now in borrowed time. At least Germany is started moving towards power to hydrogen but it takes like 10+ years to build truly big industrial scale production for P2H. Same for grid scale batteries eg which are moving right direction but not there yet.

Re: More wind energy was installed in 2020 than any other energy source

#15
post #5
post #4

Is there a plan to eliminate coal and gas as big elements in USA's eletricity production?

If it’s cloudy and an extended period of calm wind, it’s unacceptable for me to not have electricity, and neither is it for hospitals or nursing homes. We will always need some form of petro backup unless our queasiness with nuclear is solved.

Liquid-air batteries. Big ones.

https://www.theguardian.com/environment/2020/jun/18/worlds-b...

https://highviewpower.com/

Re: More wind energy was installed in 2020 than any other energy source

#16
post #9

Am I correct to assume that wind is a more indirect source of power than solar? In my mind, solar energy creates wind by heating up the surface of the earth, which then heats up the air above it, which then moves around to even out the temperature differences. Therefore I suspect that in the long run (10 years? 100 years?) solar energy will be more common than wind energy. Similar to how solid state drives are overta…

Both seem useful in different places. There are very windy locations that get very little sun, and very sunny locations that get very little wind.

Right - I think generally having a variety of energy sources is also good so that we can have a smoother power generation curve during the day rather than the big peaks that wind & solar generate. Eventually, we'll (hopefully) have enough battery or other energy storage capacity to smooth out bumps in energy production so it can be used throughout the day. But even then it'll be useful to have wind power generating some power when, say, it's nighttime.

Re: More wind energy was installed in 2020 than any other energy source

#17
I had the luxury of working on software in support of wind turbines a few years back. I loved it. I was very proud of the work we were doing and the value we added to the space. I would love to continue working in the wind energy space if the opportunity arose again.

Re: More wind energy was installed in 2020 than any other energy source

#18

Am I correct to assume that wind is a more indirect source of power than solar? In my mind, solar energy creates wind by heating up the surface of the earth, which then heats up the air above it, which then moves around to even out the temperature differences. Therefore I suspect that in the long run (10 years? 100 years?) solar energy will be more common than wind energy. Similar to how solid state drives are overta…

Wind doesn't shut down at night (though it might be lower).

Re: More wind energy was installed in 2020 than any other energy source

#19

I had the luxury of working on software in support of wind turbines a few years back. I loved it. I was very proud of the work we were doing and the value we added to the space. I would love to continue working in the wind energy space if the opportunity arose again.

What companies are doing the software? Who's the leader in the field?

Re: More wind energy was installed in 2020 than any other energy source

#20
post #5

Earlier quoted context omitted.

If it’s cloudy and an extended period of calm wind, it’s unacceptable for me to not have electricity, and neither is it for hospitals or nursing homes. We will always need some form of petro backup unless our queasiness with nuclear is solved.

Liquid-air batteries. Big ones. https://www.theguardian.com/environment/2020/jun/18/worlds-b... https://highviewpower.com/

I also hope that efficient scale batteries become possible. But if there is an extended deficit with wind / sun then even a battery might not do it. One undeniable advantage of petrochemicals is they work at any time, consistently, and are a solid backup. Maybe we are OK as a society with backup generators being petrochemicals, rather than going nuclear.
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