7 ms·

The major data centers being built for AI are much more energy-hungry than car manufacturing, and they're being built at a pace that the US energy grid simply c

by fr4nkr 5mo ago

The major data centers being built for AI are much more energy-hungry than car manufacturing, and they're being built at a pace that the US energy grid simply cannot accommodate in the short term... or quite possibly even the long term, considering the US's extreme aversion to expanding nuclear power. Also, you can call it Luddism if you want, but a car factory is going to bring a lot more net benefit to the average person than an AI data center. Motorized transportation is essential to modern civilization, fancy chat-bots are not.

efromvt 5mo ago
I wonder why this doesn’t get us frustrated with the grid, not data centers. Delays on interconnects for renewables and offshore wind both seem pretty self inflicted.
- TheTaytay 5mo ago
  I keep wondering this too. It feels like such a self fulfilling prophecy: don’t build new power plants. Don’t build nuclear. Get mad when the grid can’t keep up…it’s defeatist and anti-growth-of-any-sort through a different lens.
  - trueno 5mo ago
    I mean one has to also consider the current political _and_ geopolitical landscape now when it comes to energy needs. And given the current outlook and environments even states are now operating in with federal overreach shutting down offshore wind farm efforts and more, it's not hard to do the calculus that lands you squarely in this reality: - most grids can't sustain the AI energy demands at the moment - literally no one could tell you if scaling up with clean/renewable energy sources to meet demand is even going to get greenlit right now. it is straight up gambling to try and give a black and white answer to it. so to a lot of degrees i absolutely understand why a state might pump the brakes. this is increased pressure on a limited resource that is squeezing _the peoples_ economic circumstances. pump the brakes because no one is talking about how to greenlight it and scale up the right way so it doesn't result in even more financial uncertainty for people that are already financially uncertain. its absolutely not something i would want to give the go ahead on without guarantees that renewable energy is going to be the backbone of the increased energy demand.
  - 0cf8612b2e1e 5mo ago
    To be fair, for decades, electricity consumption has been mostly flat. There has not been a need to massively ramp up new generation or distribution. It is only in the last few years that such mega consumers have come online that is requiring new development at a frantic pace.
    - fc417fc802 5mo ago
      Not true. Electric vehicles have been threatening to collapse residential grids for quite a few years now. The US hasn't been making the necessary infrastructure investments for a long time. See PG&E for example.
      - 0cf8612b2e1e 5mo ago
        For something the size of the electrical grid, you can find regional variations, but the national trend is quite clear. One report from a quick search[0] Consumption Growth Acceleration: After 14 years of near-stagnant growth (0.1% annually from 2008-2021), US electricity consumption surged 3.0% in 2024, driven by data centers, electric vehicles, and economic recovery, signaling a new era of demand growth. [0] https://solartechonline.com/blog/how-much-electricity-does-us-use-2025-guide/ https://solartechonline.com/blog/how-much-electricity-does-u...
        fc417fc802 5mo ago
        TBF multiple things can be true. A period of stagnation, a failure to perform sufficient upkeep, and a failure to keep up with new demand.
- anon291 5mo ago
  Because we have decided that electrical generation tech ended once China became better at it. Instead of dealing with that like adults we are throwing a fit instead
- YetAnotherNick 5mo ago
  Also power is not at all a limited resource as many top voted post on HN thinks it to be. Increased demand decreases the price of power not increases it in the long term. And in any case ban doesn't make any sense. Instead they could charge different for grid electricity usage, and make the datacenter pay for grid expansion when they start building it.
orenlindsey 5mo ago
I would argue that with the rise of coding and debugging agents, the AI data centers provide (or will in the near future) even more benefit than a car factory, in terms of digital infrastructure. These technologies are just a lot more invisible so we don't realize how important they are.
- pojzon 5mo ago
  Yet we read everyday that Agents generating astronomous amounts of slop and pointless projects are also straining global digital infrastructure. Which is also “invisible”. Using this technology to make advancements in healthcare is 1% of its usage. While 99% is garbage apps noone needs, memes, deep fake videos and porn. AI as a whole for now is a net negative for the world.
  - mcmcmc 5mo ago
    Don’t forget the portion that’s used for mass surveillance, scams, and other blackhat shenanigans. Or supercharged personalized advertising with dynamic pricing. And you can’t miss propaganda and dark money influence campaigns.
- rurp 5mo ago
  LLMs are and will be used as malware, propaganda, and slop generation agents more than they will be used as debugging agents. The amount of energy that we'll need to consume going forward just to defend against malicious users and to filter down the flood of slop is absolutely eye watering and will continue to grow as far as we can tell.
- pesus 5mo ago
  Can you explain how important they are? So far the benefits seem to be limited to faster code generation, which doesn't solve any actual problem people were facing, and is greatly outweighed by the negatives.
bigfatkitten 5mo ago
And a data centre brings absolutely no economic benefit whatsoever to its local community, unlike something like an auto plant that creates entirely new supporting industries to support it and its employees.
- cheriot 5mo ago
  Property taxes come to mind.
  - xphos 5mo ago
    Local municipalities collect this and often get tricked into not collecting it via agreements to host it in or near their town for multiple year agreements. Also the assessed value of the property may not come anywhere near the costs of increased electricity demand, water usage and noise pollution problems. For locals Their is typically high paying jobs in factories but these places dont employ a large staff beyond construction. It a tough spaces.
    - toast0 5mo ago
      Property tax is often assessed on capital equipment owned by a business as well as real estate. So while the real estate may be of limited value, the hosted machines could drive significant tax revenue as AI machines are spendy. You're right though, that municipalities often waive taxes to woo big projects.
      - bigfatkitten 5mo ago
        Outside of colo facilities in metro areas, minimising property tax is always a key consideration in choosing a location.
      - xphos 5mo ago
        Yeah but i think server farms are tricky to access because they have accountants to argue about depreciating CPUs, second hand CPU deppreication is enormous so its possible to wiggle the numbers down. Not to zero but the challenge is that you have to recoup not just hthe land value but the value related all the infrastructure and resource drain this type of business does which is very non-trivial
ch4s3 5mo ago
> AI are much more energy-hungry than car manufacturing This is not even remotely true[1]. Large auto plants use on the order of 200–250 megawatts of power, which is either on par with a data center or slightly more than a data center depending on the size and how cooling is handled. [1] https://www.energystar.gov/sites/default/files/tools/Industry_Insights_Auto_Assembly_2015.pdf https://www.energystar.gov/sites/default/files/tools/Industr...
- tadfisher 5mo ago
  New AI data center builds are being specified in gigawatts, my friend.
  - jasonwatkinspdx 5mo ago
    Yup. Here's slides from last year's HotChips on where AI racks are going: https://hc2025.hotchips.org/assets/program/tutorials/HC2025.T1DCRacks.S4.Bojja.pdf https://hc2025.hotchips.org/assets/program/tutorials/HC2025.... The racks rolling out now are in the 100s of KW each, targeting 1 MW per rack as the rough limit for using 400v DC. The next iteration is go up to 800v DC, riding the coattails of power management components from the EV industry.
- jmyeet 5mo ago
  I suspect uou've misread that document. It is a good document though. It's saying a large parts plant uses ~188,000 MWh, I think per year. A modern AI data center uses 20-100MW+ of electricity. Those two things aren't the same. 20MW of continuous electricity use (which AI data centers do) translates to 175,000 MWh of electricity per year. That's about the same as a minimum and might be 5+ times more. This document is only about energy usage so we have to guess what "large" means in terms of employment but 3000 to 7000 seems to the range. Compared to 20-30. But AI data centers are worse because they actually produce what I call negative jobs. Their currently only value proposition is in laying off people and otherwise suppressing labor costs. All while the residents all pay more for their electricity with the money no longer have because they got laid off.
  - 5mo ago

by fr4nkr 5mo ago

efromvt 5mo ago

I wonder why this doesn’t get us frustrated with the grid, not data centers. Delays on interconnects for renewables and offshore wind both seem pretty self inflicted.

TheTaytay 5mo ago
I keep wondering this too. It feels like such a self fulfilling prophecy: don’t build new power plants. Don’t build nuclear. Get mad when the grid can’t keep up…it’s defeatist and anti-growth-of-any-sort through a different lens.
- trueno 5mo ago
  I mean one has to also consider the current political _and_ geopolitical landscape now when it comes to energy needs. And given the current outlook and environments even states are now operating in with federal overreach shutting down offshore wind farm efforts and more, it's not hard to do the calculus that lands you squarely in this reality: - most grids can't sustain the AI energy demands at the moment - literally no one could tell you if scaling up with clean/renewable energy sources to meet demand is even going to get greenlit right now. it is straight up gambling to try and give a black and white answer to it. so to a lot of degrees i absolutely understand why a state might pump the brakes. this is increased pressure on a limited resource that is squeezing _the peoples_ economic circumstances. pump the brakes because no one is talking about how to greenlight it and scale up the right way so it doesn't result in even more financial uncertainty for people that are already financially uncertain. its absolutely not something i would want to give the go ahead on without guarantees that renewable energy is going to be the backbone of the increased energy demand.
- 0cf8612b2e1e 5mo ago
  To be fair, for decades, electricity consumption has been mostly flat. There has not been a need to massively ramp up new generation or distribution. It is only in the last few years that such mega consumers have come online that is requiring new development at a frantic pace.
  - fc417fc802 5mo ago
    Not true. Electric vehicles have been threatening to collapse residential grids for quite a few years now. The US hasn't been making the necessary infrastructure investments for a long time. See PG&E for example.
    - 0cf8612b2e1e 5mo ago
      For something the size of the electrical grid, you can find regional variations, but the national trend is quite clear. One report from a quick search[0] Consumption Growth Acceleration: After 14 years of near-stagnant growth (0.1% annually from 2008-2021), US electricity consumption surged 3.0% in 2024, driven by data centers, electric vehicles, and economic recovery, signaling a new era of demand growth. [0] https://solartechonline.com/blog/how-much-electricity-does-us-use-2025-guide/ https://solartechonline.com/blog/how-much-electricity-does-u...
      - fc417fc802 5mo ago
        TBF multiple things can be true. A period of stagnation, a failure to perform sufficient upkeep, and a failure to keep up with new demand.
anon291 5mo ago
Because we have decided that electrical generation tech ended once China became better at it. Instead of dealing with that like adults we are throwing a fit instead
YetAnotherNick 5mo ago
Also power is not at all a limited resource as many top voted post on HN thinks it to be. Increased demand decreases the price of power not increases it in the long term. And in any case ban doesn't make any sense. Instead they could charge different for grid electricity usage, and make the datacenter pay for grid expansion when they start building it.

orenlindsey 5mo ago

I would argue that with the rise of coding and debugging agents, the AI data centers provide (or will in the near future) even more benefit than a car factory, in terms of digital infrastructure. These technologies are just a lot more invisible so we don't realize how important they are.

pojzon 5mo ago
Yet we read everyday that Agents generating astronomous amounts of slop and pointless projects are also straining global digital infrastructure. Which is also “invisible”. Using this technology to make advancements in healthcare is 1% of its usage. While 99% is garbage apps noone needs, memes, deep fake videos and porn. AI as a whole for now is a net negative for the world.
- mcmcmc 5mo ago
  Don’t forget the portion that’s used for mass surveillance, scams, and other blackhat shenanigans. Or supercharged personalized advertising with dynamic pricing. And you can’t miss propaganda and dark money influence campaigns.
rurp 5mo ago
LLMs are and will be used as malware, propaganda, and slop generation agents more than they will be used as debugging agents. The amount of energy that we'll need to consume going forward just to defend against malicious users and to filter down the flood of slop is absolutely eye watering and will continue to grow as far as we can tell.
pesus 5mo ago
Can you explain how important they are? So far the benefits seem to be limited to faster code generation, which doesn't solve any actual problem people were facing, and is greatly outweighed by the negatives.

bigfatkitten 5mo ago

And a data centre brings absolutely no economic benefit whatsoever to its local community, unlike something like an auto plant that creates entirely new supporting industries to support it and its employees.

cheriot 5mo ago
Property taxes come to mind.
- xphos 5mo ago
  Local municipalities collect this and often get tricked into not collecting it via agreements to host it in or near their town for multiple year agreements. Also the assessed value of the property may not come anywhere near the costs of increased electricity demand, water usage and noise pollution problems. For locals Their is typically high paying jobs in factories but these places dont employ a large staff beyond construction. It a tough spaces.
  - toast0 5mo ago
    Property tax is often assessed on capital equipment owned by a business as well as real estate. So while the real estate may be of limited value, the hosted machines could drive significant tax revenue as AI machines are spendy. You're right though, that municipalities often waive taxes to woo big projects.
    - bigfatkitten 5mo ago
      Outside of colo facilities in metro areas, minimising property tax is always a key consideration in choosing a location.
    - xphos 5mo ago
      Yeah but i think server farms are tricky to access because they have accountants to argue about depreciating CPUs, second hand CPU deppreication is enormous so its possible to wiggle the numbers down. Not to zero but the challenge is that you have to recoup not just hthe land value but the value related all the infrastructure and resource drain this type of business does which is very non-trivial

ch4s3 5mo ago

> AI are much more energy-hungry than car manufacturing This is not even remotely true[1]. Large auto plants use on the order of 200–250 megawatts of power, which is either on par with a data center or slightly more than a data center depending on the size and how cooling is handled. [1] https://www.energystar.gov/sites/default/files/tools/Industry_Insights_Auto_Assembly_2015.pdf https://www.energystar.gov/sites/default/files/tools/Industr...

tadfisher 5mo ago
New AI data center builds are being specified in gigawatts, my friend.
- jasonwatkinspdx 5mo ago
  Yup. Here's slides from last year's HotChips on where AI racks are going: https://hc2025.hotchips.org/assets/program/tutorials/HC2025.T1DCRacks.S4.Bojja.pdf https://hc2025.hotchips.org/assets/program/tutorials/HC2025.... The racks rolling out now are in the 100s of KW each, targeting 1 MW per rack as the rough limit for using 400v DC. The next iteration is go up to 800v DC, riding the coattails of power management components from the EV industry.
jmyeet 5mo ago
I suspect uou've misread that document. It is a good document though. It's saying a large parts plant uses ~188,000 MWh, I think per year. A modern AI data center uses 20-100MW+ of electricity. Those two things aren't the same. 20MW of continuous electricity use (which AI data centers do) translates to 175,000 MWh of electricity per year. That's about the same as a minimum and might be 5+ times more. This document is only about energy usage so we have to guess what "large" means in terms of employment but 3000 to 7000 seems to the range. Compared to 20-30. But AI data centers are worse because they actually produce what I call negative jobs. Their currently only value proposition is in laying off people and otherwise suppressing labor costs. All while the residents all pay more for their electricity with the money no longer have because they got laid off.
- 5mo ago