this post was submitted on 28 Apr 2025
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[–] [email protected] 63 points 3 days ago (1 children)

Capitalism makes abundance problematic.

[–] [email protected] 15 points 3 days ago

Supply side Jesus says put your faith in the wisdom of the CEO.

[–] [email protected] 15 points 3 days ago (2 children)

They've got economist-brain and view everything as a money thing, which is fucked up and a problem.

But negative net demand (the thing "negative cost" is signaling) is a pain in the ass, because you either need to shut off the panels from the grid, find some very high-capacity and high-throughput storage, or blow out your power grid.

Like some hydroelectric dams in Germany get run backwards, pumping water back up behind the wall. I think there are pilot projects to pump air into old mines to build up a pressure buffer. Grid-scale batteries just aren't there yet.

Solar is good for things where the power demand is cumulative and relatively insensitive to variation over time (like, say, salt pond evaporation, but you don't actually need panels for that). It's also good for insolation-sensitive demand (like air conditioning).

Turns out distributed rooftop solar makes more sense given our current grid than big solar farms out in the desert (California built one, it was not a good use of money).

It's not great, but we need to bite the bullet and use fission+reprocessing in a big way for the near future.

[–] [email protected] 5 points 2 days ago

Agreed. It's framed incorrectly, but the real problem is the "duck curve," the time disparity between peak generation and peak consumption. Pumped hydro, battery storage, electrolysis, and mechanical storage are all options, but each has its own constraints. Ultimately, though, it's an engineering problem with viable solutions. We just need the political will for the investment.

[–] [email protected] 3 points 2 days ago (1 children)

Distributed rooftop solar is the worst way to use our grid. It's designed to pump a lot of power from a single place to a lot of little places. The opposite doesn't work very well.

The solution is to not focus on solar by itself. Solar/wind/water/storage/long distance transmission need to be balanced with each other. Each has strengths and weaknesses that cover for the strengths and weaknesses of the others.

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[–] [email protected] 273 points 4 days ago (4 children)

If you're describing nearly free and unlimited electricity as a problem, you may want to reconsider some things.

[–] [email protected] 182 points 4 days ago (15 children)

It's a very capitalist way of thinking about the problem, but what "negative prices" actually means in this case is that the grid is over-energised. That's a genuine engineering issue which would take considerable effort to deal with without exploding transformers or setting fire to power stations

[–] [email protected] 44 points 4 days ago* (last edited 4 days ago) (28 children)

Home owned windmills, solar panels and battery storage solves that.

Edit: Look at this awesome diagram of how it's done for a hybrid setup that's about $400 on Amazon.

PIKASOLA Wind Turbine Generator 12V 400W with a 30A Hybrid Charge Controller. As Solar and Wind Charge Controller which can Add Max 500W Solar Panel for 12V Battery.

[–] [email protected] 79 points 4 days ago (21 children)

Home owned windmills are almost a total waste. Its surprising how little electricity they generate especially given how much the cost to buy and install. Some real numbers. A 400w can cost almost $18k to buy and install. A 410w solar solar panel is about $250 + $3k of supporting electronics and parts. And that same $3k can support 10+ more panels. I looked into it myself really wanted it to be worth it for home, but it just isn't. Now utility grade wind? Absolutely worth it. You need absolutely giant windmills with massive towers, but once you have those, you can make a LOT of electricity very cost effectively.

Solar panels worth it? Yes. Absolutely.

Batteries, not quite there yet for most folks. Batteries are really expensive, and don't hold very much electricity $10k-$15k can get you a few hours of light or moderate home use capacity. For folks with really expensive electricity rates or very unreliable power this can be worth it financially, but for most every else. Cheaper chemistry batteries are finally starting to be produced (Sodium Ion), but we're right at the beginning of these and there not really any consumer products for home made from these yet.

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[–] [email protected] 200 points 4 days ago* (last edited 4 days ago) (24 children)

I see this posted a lot as if this is an issue with capitalism. No, this is what happens when you have to deal with maintaining the power grid using capitalism as a tool.

Power generation needs to match consumption. Always constantly the power grid must be balanced. If you consume more than you can generate, you get a blackout. If you generate more than you use, something catches fire.

Renewables generate power on their own schedule. This is a problem that can be solved with storage. But storage is expensive and takes time to construct.

Negative prices are done to try and balance the load. Its not a problem, its an opportunity. If you want to do something that needs a lot of power, you can make money by consuming energy when more consumption is needed. And if you buy a utility scale battery, you can make money when both charging and discharging it if you schedule it right.

That's not renewables being a problem, that's just what happens when the engineering realities of the power grid come into contact with the economic system that is prevalent for now.

[–] [email protected] 35 points 4 days ago (2 children)

Also, fwiw, you can curtail wind turbines incredibly quickly. They're the quickest moving assets on an electrical grid typically. So you are using them to balance the grid quite often. You can just pitch the blades a bit and they slow or stop. it's not really a tech problem, but a financial one like you said.

I'm not sure much about solar curtailment, other than the fact that they receive curtailment requests and comply quite quickly as well.

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[–] [email protected] 60 points 3 days ago (9 children)

The answer is batteries. And dismantling capitalism, but batteries first

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[–] [email protected] 13 points 3 days ago

We have such a stupid fucking system for running society. We go out of our fucking way to block better options simply because they don't maximize profit. Not even "are actually unprofitable," just that they don't maximize profit.

[–] [email protected] 44 points 3 days ago (1 children)

oh no the power is too cheap. God forbid our trillions of tax dollars go to something actually useful and good for the people oh well looks like we will get the F-47 instead and pay it to private military contracts 😂

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[–] [email protected] 50 points 4 days ago (13 children)

It's funny how capitalist apologists in this thread attack the format of a tweet and people not reading the actual article, when they clearly haven't read the original article.

Negative prices are only mentioned in passing, as a very rare phenomenon, while most of it is dedicated to value deflation of energy (mentioned 4 times), aka private sector investors not earning enough profits to justify expanding the grid. Basically a cautionary tale of leaving such a critical component of society up to a privatized market.

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[–] [email protected] 5 points 2 days ago
[–] [email protected] 13 points 3 days ago

A system of disturbing goods and services that can't handle negative value is not a system that should be maintained. Our collect pursuit as a species should be the abundance of these things, not the artificially managed scarcity of them.

[–] [email protected] 90 points 4 days ago (9 children)

Ughh, no, negative prices aren't some weird "capitalism" thing. When the grid gets over loaded with too much power it can hurt it. So negative prices means that there is too much power in the system that needs to go somewhere.

There are things you can do like batteries and pump water up a hill then let it be hydroelectric power at night.

[–] [email protected] 81 points 4 days ago (8 children)

But it doesn't say "it can generate too much energy and damage infrastructure", they said "it can drive the price down". The words they chose aren't, like, an accident waiting for someone to explain post-hoc. Like, absolutely we need storage for exactly the reason you say, but they are directly saying the issue is driving the price down, which is only an issue if your not able to imagine a way to create this infrastructure without profit motive.

[–] loopedcandle 24 points 4 days ago (2 children)

Yeah mate. The people writing here are economists not engineers, and that's the professional language for what they're talking about in their field. It's like if a nuclear engineer said "oh yeah, the reactor is critical" which means stable.

I hear the point your making and the point OP made, but this is how really well trained PhDs often communicate - using language in their field. It's sort of considered rude to attempt to use language from another specialty.

All of that context is lost in part b.c. this is a screenshot of a tweet in reply to another tweet, posted on Lemmy.

The way it's supposed to work is the economist should say "we don't know what this does to infrastructure you should talk to my good buddy Mrs. Rosie Revere Engineer about what happens."

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[–] [email protected] 10 points 3 days ago (14 children)

Except the grid overload thing isn't even an issue with renewables, since wind can be shut down in a matter of 1-5 minutes (move them out of the wind) and solar literally just be disabled. Any overload they produce would be due to mechanical failure, where you can cut them off the grid since they're in the process of destroying themselves anyway (like in those videos where wind turbines fail spectacularly). Otherwise renewables are perfect to regulate the grid if available.

In a hypothetical grid with an absolute majority of many badly adjustable power sources (like nuclear) you'd have to work with negative prices to entice building large on-demand consumers or battery solutions. So far nobody was stupid enough to build a grid like this though.

tl;dr, this whole problem indeed is about economics and therefore may very well be a "capitalism thing". Renewables do not overload the grid.

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[–] [email protected] 14 points 3 days ago

Capitalism has always been the problem, nothing new here.

[–] [email protected] 5 points 2 days ago

But we can start rejecting late stage capitalism. Unfortunately, that’s not what is happening people are voting for right wing nut jobs who will enforce capitalism through oppression, poverty, mass surveillance and militarized police.

[–] [email protected] 19 points 3 days ago* (last edited 3 days ago) (2 children)

Wasn't there a town in China that produced such a glut of surplus electricity that they didn't know what to do with it? And it was 100% solar?

[–] [email protected] 15 points 3 days ago (2 children)

I guess the biggest bottleneck for renewables is energy storage.

[–] [email protected] 7 points 3 days ago (1 children)

Pretty much. Once we got that covered there is no excuse anymore.

[–] [email protected] 6 points 3 days ago (5 children)

It's basically solved. Sodium batteries are cheaper and much more durable than lithium batteries, and are currently being commercialized. Their only downside is that they are heavier, but that does not matter for grid-scale storage.

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[–] [email protected] 11 points 3 days ago (1 children)

I would post that passage from Grapes of Wrath about oranges. But copy-paste doesn't work on my phone

[–] [email protected] 31 points 3 days ago (3 children)

I got you.

The works of the roots of the vines, of the trees, must be destroyed to keep up the price, and this is the saddest, bitterest thing of all. Carloads of oranges dumped on the ground. The people came for miles to take the fruit, but this could not be. How would they buy oranges at twenty cents a dozen if they could drive out and pick them up? And men with hoses squirt kerosene on the oranges, and they are angry at the crime, angry at the people who have come to take the fruit. A million people hungry, needing the fruit- and kerosene sprayed over the golden mountains. And the smell of rot fills the country. Burn coffee for fuel in the ships. Burn corn to keep warm, it makes a hot fire. Dump potatoes in the rivers and place guards along the banks to keep the hungry people from fishing them out. Slaughter the pigs and bury them, and let the putrescence drip down into the earth.

There is a crime here that goes beyond denunciation. There is a sorrow here that weeping cannot symbolize. There is a failure here that topples all our success. The fertile earth, the straight tree rows, the sturdy trunks, and the ripe fruit. And children dying of pellagra must die because a profit cannot be taken from an orange. And coroners must fill in the certificate- died of malnutrition- because the food must rot, must be forced to rot. The people come with nets to fish for potatoes in the river, and the guards hold them back; they come in rattling cars to get the dumped oranges, but the kerosene is sprayed. And they stand still and watch the potatoes float by, listen to the screaming pigs being killed in a ditch and covered with quick-lime, watch the mountains of oranges slop down to a putrefying ooze; and in the eyes of the people there is the failure; and in the eyes of the hungry there is a growing wrath. In the souls of the people the grapes of wrath are filling and growing heavy, growing heavy for the vintage.

[–] [email protected] 12 points 3 days ago (1 children)

Thanks. I love this quote. But it pisses me off so bad

[–] [email protected] 4 points 3 days ago

Slaughter the pigs and bury them, and let the putrescence drip down into the earth.

This reminds me of 2020 when they shut down slaughterhouses due to COVID. They killed hundreds of thousands (likely into the millions) of pigs using ventilation shutdown. These were not diseased pigs, it was simply to dispose of them while the slaughterhouses were shut down.

We live in a fundamentally sick society.

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[–] [email protected] 52 points 4 days ago* (last edited 4 days ago) (4 children)

You can read the Technology Review article here discussing why this is problematic beyond a JPEG-artifacted screenshot of a snappy quip from a furry porn Twitter account that may or may not have read the article beyond the caption. We need solar power plants to reach net zero emissions, but even despite their decreasing costs and subsidies offered for them, developers are increasingly declining to build them because solar is so oversaturated at peak hours that it becomes worthless or less than worthless. The amount of energy pumped into the grid and the amount being used need to match to keep the grid at a stable ~60 Hz (or equivalent where you live, e.g. 50 Hz for the PAL region), so at some point you need to literally pay people money to take the electricity you're producing to keep the grid stable or to somehow dump the energy before it makes its way onto the grid.

One of the major ways this problem is being offset is via storage so that the electricity can be distributed at a profit during off-peak production hours. Even if the government were to nationalize energy production and build their own solar farms (god, please), they would still run up against this same problem where it becomes unviable to keep building farms without the storage to accommodate them. At that point it becomes a problem not of profit but of "how much fossil fuel generation can we reduce per unit of currency spent?" and "are these farms redundant to each other?".

This is framed through a capitalist lens, but in reality, it's a pressing issue for solar production even if capitalism is removed from the picture entirely. At some point, solar production has to be in large part decoupled from solar distribution, or solar distribution becomes far too saturated in the middle of the day making putting resources toward its production nearly unviable.

[–] [email protected] 27 points 4 days ago (7 children)

In other words… Maybe 29 word Twitter captions aren’t a great way to discuss issues?

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[–] [email protected] 33 points 4 days ago (9 children)

Why not do something with all that power? In the past there were some projects where they pumped water upstream when there was too much power on the grid. Then on low energy times, the water was released making energy again. Or make hydrogen (I think it was hydrogen). Or do AI stuff

I also seen energie waste machines that basically use a lot of power to do nothing. Only the get rid of all that extra energy so the power grid won't go down/burn.

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[–] [email protected] 2 points 2 days ago* (last edited 2 days ago)

I dream of humans one day building a Dyson swarm around the Sun and becoming a Kardashev type 2 civilization. It's a magnificent dream that we probably must one day accomplish or accept extinction.

But that is one serious problem with it. Unless it's managed democratically, if one psycho gets to control all of it, yeah, they could literally block out the Sun for anyone who won't pay for protection.

[–] [email protected] 6 points 3 days ago (4 children)

The question comes down to this. How do you incentivize work other than with money?

[–] [email protected] 2 points 2 days ago (1 children)

The same way arts and crafts were invented - humans want to do things whenever they aren't stressed out of their minds.

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[–] [email protected] 27 points 4 days ago (2 children)

Just install a bunch of spotlights that point back at the Sun so when power prices go negative you can return all that excess energy! Come on MIT, I thought you were supposed to be smart.

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