Author Topic: Energy issues, energy technology  (Read 47676 times)

DougMacG

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solar energy, falling costs
« Reply #50 on: January 22, 2021, 08:10:13 AM »
https://www.woodmac.com/horizons/how-falling-costs-will-secure-solars-dominance-in-power

How falling costs will secure solar’s dominance in power

   - Umm, aren't there a couple of other problems with solar energy, like nightfall, overcast and winter.



ccp

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James Earl Carter and the 70s all over again
« Reply #53 on: April 19, 2021, 09:05:39 AM »
https://finance.yahoo.com/news/historic-oil-glut-amassed-during-070000942.html

this time it is totally unnecessary
self inflicted

Thanks Jo


ccp

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store up on your meats - we are rationed one hamburger per month
« Reply #55 on: April 24, 2021, 08:30:58 AM »
https://www.conservativereview.com/biden-pledges-to-cut-us-emissions-by-50-in-9-years-heres-what-that-could-mean-for-you-2652750872.html

time to buy beyond beef

I have tried it - it is good actually but absolutely no healthier

I think the price has some down.


Body-by-Guinness

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Another Brick in the Wall
« Reply #57 on: May 15, 2024, 01:55:20 PM »
And at some point, that wall will come tumbling down:

The Green Energy Wall Can’t Arrive Quickly Enough
8 hours ago  Guest Blogger  100 Comments
From the MANHATTAN CONTRARIAN

Francis Menton

We are fast approaching something I have called the “Green Energy Wall.” The “Wall” consists of some combination of real-world obstacles, partly cost and partly physics, that will inevitably end the quest for emissions-free “net zero” electricity generation well before the goal of zero emissions is reached. I first identified the approaching Wall in this post in December 2021, and remarked that it was “gradually coming into focus” in this follow-up post in November 2023. Everyone who pays attention and is capable of doing basic arithmetic knows that the we are approaching this Wall, some jurisdictions much faster than others. (New York has voluntarily put itself in the front ranks.).

What we don’t know is how the hitting of the Wall will manifest itself: Widespread and frequent blackouts? Regular, enforced load-shedding brown-outs? Tripling or quadrupling of electricity prices? A political uprising as people realize that they have been duped by scammers claiming that an energy transition would be easy and cheap? Or perhaps it will be all of the above.

Meanwhile, the years pass slowly. The impossibility of the situation we are digging into becomes more and more obvious, but so far there is no obvious crisis. Will it arrive in another year, or two? Or maybe five?

Consider New York. Multiple statutes and regulations commit us to energy-transition mandates that simply will not be met. Among the fantasies are two major statutes passed in 2019, one for New York State (Climate Leadership and Community Protection Act), and the other for the City (Local Law 97); and vehicle emissions standards adopted in 2022 by New York’s Department of Environmental Conservation.

Start with those vehicle emissions standards. In 2022 the DEC adopted for New York the standards and requirements set forth in the California Air Resources Board’s “Advanced Clean Cars II” regulation. California’s regulations call for minimum percentages of vehicles sold to be “zero emissions” starting with the 2026 model year, and then rapidly scaling up to 100% “zero emissions” by the 2035 model year. Here is a chart from CARB of the percentages of vehicles sold, by model year, that are supposed to be “zero emissions.”:


EVs are not the only things that qualify as “zero emissions” (e.g., hydrogen vehicles qualify), but EVs are the only things that qualify and also exist in meaningful numbers. The 2026 model year begins around September 2025 — that is, about 16 months away. What is the current percent of vehicles sold in New York that are “zero emissions”? A piece on March 6, 2024 in the New York Times puts the percentage of electric vehicles sold in the New York “metropolitan area” in 2023 at less than 10%. The article does not give a figure for New York State as a whole, but undoubtedly the figure for the state — including rural upstate areas — is well less than the percentage in the City and suburbs. Meanwhile many sources report that EV sales have suddenly declined sharply in the first quarter of 2024. (I can’t find statistics on that broken down by state.). But even if EV sales in New York State continued to increase in the first months of this year, are they really going to somehow get to 35% of all sales within a little more than a year? And then to 43% after just one more year, and then 51% after one more year, and so on to 100% by 2035? This is completely ridiculous.

Equally ridiculous is the mandate in the CLCPA for 70% of electricity generation from “renewables” by 2030. The people in charge of implementing this mandate are completely incompetent and have no idea what they are doing. After passage of the Act in 2019, the first significant step, in 2020 and 2021, was to close the two zero-emissions nuclear reactors at Indian Point that provided about 25% of New York City’s electricity, and replace them with two brand new natural gas plants, thus substantially increasing emissions. So to date, the progress toward the so-called 70 x 30 goal has been negative.

The signature initiative to achieve the 70 x 30 goal is a plan for 9000 MW of offshore wind off the coast of Long Island. In this post on March 5 I did the simple arithmetic to calculate that, if all of that capacity actually gets built, it would at best provide about 16% of New York’s current electricity consumption — before the addition of new loads from the electrification of the vehicle fleet and of home heating. Granted, we have the large hydro plant at Niagara Falls that they count as “renewable,” plus some other hydro resources that, together with Niagara Falls, might come to 20% of consumption. So with those plus the offshore wind, perhaps we can get to 35% of consumption. (Meanwhile, the offshore wind projects keep getting canceled and delayed as the developers maneuver to get themselves increased prices.)

How are we going to get to 70% from renewables in under 6 years? They literally have no clue. Something called a “Scoping Plan” has been generated pursuant to the CLCPA. It foresees a need for something they call the “Dispatchable Emissions Free Resource.” This is something that does not currently exist, and likely will not exist during any relevant time frame.

Yet the lack of any viable replacement has not prevented New York from pledging to close its well-functioning natural gas plants. Several were scheduled for closure this year. But then, back in November, somebody noticed that there was nothing to replace the plants, so the forced retirement of four of these plants got postponed for two years. News flash: two years from now, we’re still not going to have anything to replace these plants. The same will be true four years from now, and six and eight and ten. Will they simply keep postponing the mandated closure? Perhaps this is how we avoid smashing into the Green Energy Wall.

And then we have Local Law 97, supposedly mandating all large (25,000 square feet and up) residential buildings to convert to electric heat, mostly by 2030. This will represent an increase in the demand on the grid by something in the range of 30%. This at the same time as the natural gas plants are mandated to close, to be only partially replaced by some highly irregular offshore wind that will not fully replace the gas generation, let alone begin to supply the increased demand.

Something has to give here, and it will give. It will be much for the best if this happens quickly, rather than dragging on for years and years.

https://www.manhattancontrarian.com/blog/2024-5-13-the-green-energy-wall-cant-arrive-quickly-enough

Crafty_Dog

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Re: Energy issues, energy technology
« Reply #58 on: May 22, 2024, 06:44:13 AM »
A key concept, well articulated.


DougMacG

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New Lithium Extraction Method, Stanford.edu
« Reply #60 on: August 26, 2024, 09:38:55 AM »
A new technology can extract lithium from brines at an estimated cost of under 40% that of today’s dominant extraction method, and at just a fourth of lithium’s current market price. The new technology would also be much more reliable and sustainable in its use of water, chemicals, and land than today’s technology, according to a study published today in Matter by Stanford University researchers. Global demand for lithium has surged in recent years, driven by the rise of electric vehicles and renewable energy storage. The dominant source of lithium extraction today relies on evaporating brines in huge ponds under the sun for a year or more, leaving behind a lithium-rich solution, after which heavy use of potentially toxic chemicals finishes the job. Water with a high concentration of salts, including lithium, occurs naturally in some lakes, hot springs, and aquifers, and as a byproduct of oil and natural gas operations and of seawater desalination. (Sources: news.stanford.edu, sciencedirect.com)

ccp

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Re: Energy issues, energy technology
« Reply #61 on: August 26, 2024, 11:40:38 AM »
where can I invest ?   :-D

or do we have to wait for the Stanford Univ profs to go out on their own set up a new company the VCs get in the early pickings and in 2 yrs the average ccp could invest at 20 x the cost?

 :?

ccp

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Body-by-Guinness

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Peak Memes about Peak Oil
« Reply #63 on: January 26, 2025, 07:06:08 PM »
“Peak oil” fears were around in the ‘70s, and according to my father they and “peak coal,” Like a bad penny, this stuff keeps showing up, amounting to a bad “fact” upon which bad info decisions are made:

https://www.artberman.com/blog/lazy-thinking-how-memes-get-oil-all-wrong/

Body-by-Guinness

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Spain & Portugal Go Dark
« Reply #64 on: April 28, 2025, 01:47:43 PM »
The other day Spain was bragging about serving all its energy needs for a day via "green" methods. Today Spain (& Portugal) went dark due to a "freak" occurance, albeit an occurance that would not occur to a dynamo (coal, gas, steam, dam, nuclear, etc.) based power system. Dynamos store potential energy & keep spinning even when the grid hiccups. Solar and wind based systems do not store potential energy via momentum, but rather by battery. Hence when a system goes down systems all along the grid have to be rebooted while every user is screaming for energy & trying to glom on to any electrons that pass down the wire.

So ... green energy in for the win:

https://wattsupwiththat.com/2025/04/28/congrats-to-spain-nation-goes-100-renewable-as-of-april-16th-2025-butthen-mass-blackouts-hit-spain-portugal/

DougMacG

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https://robertbryce.substack.com/p/did-over-reliance-on-solar-and-lack

Understanding how solar and wind energy weakens the grid requires understanding the physics of electricity, grid inertia, and what a University of Queensland professor has dubbed the “pressure cooker” effect of renewables.
***
Since the days of Edison, the grid has relied on large generators with a lot of mass. The weight of the spinning parts inside the generators has a lot of inertia that keeps the flow of electricity — think of it as pressure — on the grid at steady levels. The mass of those large generators acts as shock absorbers that allow the grid to absorb sudden changes in load or generation.
***
The challenge that wind and solar bring to the grid is that they do not provide the same type of spinning mass (read: inertia) that the electric grid has relied upon for decades.

…[A]n electrical engineer who has worked all over the world selling hardware that detects problems on the electric grid and helps improve grid reliability…said it is “highly likely” that Spain’s heavy reliance on solar and wind contributed to the blackout. “What we are seeing across all power systems is that they are more brittle. They don’t have enough inertia. They have far less spinning reserve and margin for error. Earlier in my career, it was common to have a 15% minimum spinning reserve.”
***
The best explanation of grid inertia and its importance was published in 2016 by University of Queensland professor Simon Bartlett. In a paper written for the Energy Policy Institute of Australia, “The ‘Pressure Cooker’ Effect of Intermittent Renewable Generation on Power Systems,” Bartlett declared that the “practical upper limit for renewables is around 40% of total electricity generated.” …


Rotating kinetic energy in heavy turbines and generators is immediately available and is automatically converted into electricity the instant the power system starts to slow down following an unexpected generator breakdown anywhere in the power system. Electrical and magnetic energy from electrical generators is instantaneously released following a fault on the network, playing a critical role, along with rotating inertia, in power system stability and high speed power system protection. Both wind-power and solar PV are technically incapable of storing, controlling, and releasing energy in any of these ways, and simply convert the available wind or sunshine into electricity depending on the prevailing weather conditions.

Crafty_Dog

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Re: Energy issues, energy technology
« Reply #66 on: May 01, 2025, 12:43:36 PM »
"The weight of the spinning parts inside the generators has a lot of inertia that keeps the flow of electricity — think of it as pressure — on the grid at steady levels. The mass of those large generators acts as shock absorbers that allow the grid to absorb sudden changes in load or generation."

Would not the correct word be "momentum", not "intertia"?

At any rate, this reminds me the the Huber-Mills Report of around 2000 and their notion of "high nines" electicity. (.9 then .99 then .999 etc) with high tech needing higher nines (greater precision in smooth energy flow)   What the above reminds me off is the momentum of a fly wheel-- which was one of the technologies Huber-Mills were recommending.

Body-by-Guinness

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Re: Energy issues, energy technology
« Reply #67 on: May 01, 2025, 12:50:06 PM »
"The weight of the spinning parts inside the generators has a lot of inertia that keeps the flow of electricity — think of it as pressure — on the grid at steady levels. The mass of those large generators acts as shock absorbers that allow the grid to absorb sudden changes in load or generation."

Would not the correct word be "momentum", not "intertia"?


inertia | iˈnərSHə |
noun

Physics a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force: the power required to overcome friction and the inertia of the moving parts. See also moment of inertia.
• [with modifier] resistance to change in some other physical property: the thermal inertia of the oceans will delay the full rise in temperature for a few decades.

ETA: I just encountered this:

Bjørn Lomborg
 
Two days ago, Spain lost 55% of its power, most from solar

Perception: Everyone wants to blame anything but renewables

Reality: With renewables, the grid gets vulnerable (missing inertia, mainly from fossil fuels) so we need more costly renewable management

So Reuters deceptively tells us, "don't blame renewables,"  blame "management of renewables"

https://www.reuters.com/business/energy/dont-blame-renewables-spains-power-outage-bousso-2025-04-30/
« Last Edit: May 01, 2025, 12:57:18 PM by Body-by-Guinness »

Crafty_Dog

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Re: Energy issues, energy technology
« Reply #68 on: May 02, 2025, 06:38:29 AM »
"inertia | iˈnərSHə |
noun

"Physics a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force: the power required to overcome friction and the inertia of the moving parts. See also moment of inertia.
"• [with modifier] resistance to change in some other physical property: the thermal inertia of the oceans will delay the full rise in temperature for a few decades."

I stand corrected  :-)

Body-by-Guinness

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The Costs of “Green” Energy Blackouts
« Reply #69 on: May 05, 2025, 01:05:30 AM »
A good overview of where things stand on the Spanish blackout, with a particular focus on the associated costs:

https://energybadboys.substack.com/p/el-blackout

ccp

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Re: Energy issues, energy technology
« Reply #70 on: May 05, 2025, 08:45:53 AM »

another update to the energy blackout in Iberian penninsula including multiple potential fixes :

https://techxplore.com/news/2025-05-spain-blackout-highlights-renewables-grid.html

I read someonewhere the Left's explanation includes rare weather pattern  as cause - no doubt due to you know ....