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A supersonic engine core makes the perfect power turbine(boomsupersonic.com)
109 points by simonebrunozzi 18 hours ago | 171 comments
prism56 14 minutes ago | parent | next [-]

This seems like marketing nonsense to me... Carnot efficiency of a gas turbine is a function of the temperature the CT blade can sustain and the ambient temperature. (1-Tc/Th). So unless they've somehow had a massive breakthrough in material science they'll be as limited as all other gas turbine OEMs.

Air blast chillers are common in this power category so water usage isn't very high.

More importantly gas turbine power figures are quoted at an ISO 15C. So if you require 42MW at 40C ambient you'll buy an overrated engine to maintain your output. They've written this as a gotcha that their engine is more powerful than a less powerful engine. Well yeah...

javascriptfan69 9 hours ago | parent | prev | next [-]

This article feels like the perfect distillation of a uniquely American problem.

Some weird tech startup proposing a novel solution based on a product that isn't even in it's production phase yet. Lots of pretty 3d renders and a wall of (what appears to be AI written) corpo-speak proposing some crazy technology that will revolutionize x.

It looks cool -- don't get me wrong -- but how is this going to get power online faster than just installing solar and batteries?

Xylakant 2 hours ago | parent | next [-]

Did I miss something or does the article not even say how much gas they need as an input to generate the 42MW? I see they deride conventional turbines for needing cooling, but the reason they do is to increase the temp differential between hot and cold end of the turbine because some clever fellow named Carnot figured out that the amount of energy you can extract depends on this. Instead it seems that they just full-tilt run a supersonic turbine and blow the hot exhaust with all its energy into the air. So what’s the efficiency of this?

azalemeth an hour ago | parent | next [-]

Indeed. My understanding of modern powerstation gas turbines is that they all basically run _at_ the Carnot efficiency eta = (1-T_cold / T_hot) and that rather than chasing marginal gains in how close to that theoretical limit you actually are the biggest differentiators are on maintenance intervals and reliability, which collectively have quite a large effect on eta...

bob1029 an hour ago | parent | prev [-]

> how much gas they need as an input to generate the 42MW

If you don't have a pipeline, the lower bound is something like 10 LNG tanker trucks per day for each turbine at 42MW. Natural gas is incredibly efficient to transport in liquid form so you could theoretically get away with this for a little while.

flohofwoe 2 hours ago | parent | prev | next [-]

> Some weird tech startup proposing a novel solution based on a product that isn't even in it's production phase yet

It's not even a novel solution, jet engines as stationary emergency 'power stations' goes back to at least the 1950s (e.g. search for TURBOLEKT here: https://de.wikipedia.org/wiki/VEB_Entwicklungsbau_Pirna).

conradev 2 hours ago | parent | prev | next [-]

  It is thought up to 35 turbines were present on the site of xAI’s existing data center, generating 422MW of power.
That is a few square miles of solar panels, which I don't think is quicker to install than the 35 turbines.

https://www.datacenterdynamics.com/en/news/xai-removes-some-...

rgmerk 6 hours ago | parent | prev | next [-]

To be fair, you end up needing insane amounts of batteries if you want to run 24/7/365 just on solar, particularly if you insist on building your data centres in places with dark winters.

pjc50 12 minutes ago | parent | next [-]

You can't run a turbine 24/7 either, they require maintenance windows.

nandomrumber a minute ago | parent [-]

Yes, you can run a turbine 24/7, just not 365 days a year.

For gas turbines, n+1 is probably good enough for up to n=10, then n+2 and so on.

If one breaks down or is undergoing maintenance you have a spare.

Solar can’t work like this. Even if you build 2n solar capacity, you still have a not insignificant fraction of each day with no power.

Meanwhile a gas turbine can be running continuously for week to months between service intervals.

Just add batteries? Ok, but that’s no longer solar, and comes with not insignificant additional costs and maintenance etc.

mattmaroon 5 hours ago | parent | prev [-]

Wind is better than solar in many places and somewhat reduces the need for batteries

butvacuum 3 hours ago | parent [-]

From ERCOT's stats- wind is complimentary. But, I can't find any hard data on intraday/hourly power usage for AI it seems reasonable to assume that night time use will be lower though.

And so it doesn't have to be looked up: Wind seems to peak at dawn/dusk when solar is not delivery much power, solar peaks in line with air-conditioning load, and there's a miniscule amount of grid scale battery to hold up the grid during a short gap between solar and wind. The batteries are recharged with solar. At least that was the pattern this summer- I need to check now that it's winter.

rob74 2 hours ago | parent | prev | next [-]

Pah! Solar and batteries?! Have you been living under a rock for the last 12 months? Any startup that dares to suggest solutions based on solar and batteries (not to mention windmills) is sure to attract the ire of the Trump administration, so they'd better keep quiet and hope he doesn't notice them!

Actually, renewables seem to be such a no-no that the Boom blog even avoids mentioning them in the sentence "Meanwhile China is adding power capacity at a wartime pace — coal, gas, nuclear, everything" - even though China added overwhelmingly more renewable capacity last year than anything else: according to https://climateenergyfinance.org/wp-content/uploads/2025/03/..., solar increased by 43% from Feb. 2024 to Feb. 2025, wind increased by 17.6%, hydro by 3.5%, while thermal and nuclear increased by 3.9% and 6.9% respectively.

ruined 3 hours ago | parent | prev | next [-]

by the way, china achieved the trendline in that comparison graph by installing solar and batteries

shrubble 8 hours ago | parent | prev | next [-]

You get 42MW inside the footprint of what looks like 2 truck trailers, that you can park in the parking lot next to the electrical transformers. Virtually no permitting or installation required.

_carbyau_ 8 hours ago | parent | next [-]

Yes...ish, I largely agree that the footprint is smaller per MW and quite a boon.

But 42MW energy doesn't come from nowhere, fuel needs to be considered. And there everyone has their own constraints.

The AI companies will likely care about $ and little else.

Engineers will point out that 42MW fuel takes up space and supply on an ongoing basis.

Other people will be worried about the externalities of burning 42MW of something vs solar panels and batteries etc.

You can't please all of the people.

ehnto 4 hours ago | parent [-]

Decent for large scale backup perhaps? Or remote plants (almost always mining in the middle of nowhere). Remote plants have fuel logistics already.

Another fit might be somewhere like singapore which is very space poor but very trade connected. But they're currently building a ocean power cable to Australia where they will tap a massive solar farm or existing grid.

It probably fits some use cases better than any alternatives, but for powering cities and suburbia I think renewables still make heaps of sense when space is available somewhere that can join the grid.

lonelyasacloud an hour ago | parent | prev | next [-]

How does the fuel get to it?

Building roads and running tankers is expensive. Ditto pipelines unless very close to suitable sources.

Especially when the moment these go online at any scale the price of natural gas starts getting jacked even further.

lostlogin 2 hours ago | parent | prev | next [-]

> Virtually no permitting or installation required.

I hope that isn’t correct.

Noise, emissions, fuel storage, heat. There are issues that would have me annoyed if that thing appeared next door.

javascriptfan69 8 hours ago | parent | prev | next [-]

I think a 42MW turbine might run into some permitting issues regarding safe noise levels.

renewiltord 5 hours ago | parent | next [-]

Yes yes, we will surround entire turbine in piezoelectric substrate and extract energy from vibrations. It is solved problem. Then we use energy to distill fuel from CO2 in air, making it carbon neutral. Resulting fuel we will put in turbine. Zero loss generator. Can build it in cave with scraps.

sevenoftwelve 3 hours ago | parent [-]

Look, you can't write stuff like that any more. It took me three minutes to figure out you where joking.

gorgoiler 6 hours ago | parent | prev [-]

Possibly, but I suspect mobile turbines (aircraft) are unquietened (noisy) by design because they don’t really need to be quiet at 35000ft.

Presumably a static turbine is minimizing noisy thrust in exchange for torque while also exhausting through an expansion chamber surrounded by deflective earthworks or some other shielding. (Although the one in the article is indeed all outside in the open.)

adgjlsfhk1 4 hours ago | parent | next [-]

actually they've down much quieter in the past 40 years. e.g. the 787 dreamliner has wavy bits on the exit of the nozzle that reduce efficiency by 1% in exchange for quieter operation because making the engine quieter reduces the amount and weight of noise insulation in the cabin

mattmaroon 5 hours ago | parent | prev [-]

No, they’ve been intentionally designing them to be quieter for decades because they are in hearing distance for quite a lot of miles during takeoff and landing. I suspect you can better insulate one on land though since you’re less constrained on size and weight.

sroussey an hour ago | parent | prev [-]

Not getting permits, and no permits required are two different things.

Unless you got cash, then it’s the same.

sho_hn 6 hours ago | parent | prev [-]

> This article feels like the perfect distillation of a uniquely American problem.

I think at this point LinkedIn culture is fairly globalized. Though America may be to blame for getting it there, largely via Deloitte & co originally. It's originally the language of managerialism.

shtzvhdx 8 hours ago | parent | prev | next [-]

We're using plane engines to generate electricity and my residential bill is almost $0.20/kWh because we invested in chat bots instead of the infrastructure the chat bots need.

Make it make sense.

monster_truck 6 hours ago | parent | next [-]

Natural gas turbines are pretty common (power plants, large on site/mobile generators) and the efficiency levels of these are the same as what you'd see in similar use cases. Turbines don't really care what they're doing (within reason), these just happen to share a lot of parts with a plane engine.

The cost issue is completely unrelated to supply or usage, there is a cyclic issue of power companies using their profits for lobbying in order to push through measures that allow them to further increase their rates. It is often far more than is publicly disclosed.

For example, last year in this state my power company made billions of dollars and claims they spent less than a million on political contributions. But if you look at their donations, grants, and development programs there is over a hundred million dollars mostly going to companies and nonprofits owned in part by the same politicians or their family members, as well as the municipalities where the policymakers live.

In my state the combined total of rate increases in the past five years for both electricity and natural gas is >1.5x compared to inflation. Each time it is framed in the press as a good thing "we reached a solid deal, for less than half as much of what they were asking!". Every year the profits exceed their expectations by a few percent, each year more people are having their power shut off.

BostonEnginerd 7 hours ago | parent | prev | next [-]

Jealous sitting here in MA, where we pay $0.35/kWh and burn a ton of methane to get that.

UltraSane 4 hours ago | parent | next [-]

That is some of the most expensive electricity in the world.

shtzvhdx 5 hours ago | parent | prev [-]

$0.35.... wow

buildbot 5 hours ago | parent [-]

Meanwhile in Seattle... 0.14$ per KW

https://www.seattle.gov/city-light/residential-services/bill...

(Oh wow off peak will be 0.08$?!)

renewiltord 5 hours ago | parent | prev [-]

I can rustle up some environmentalists and we can shutdown some more of the infrastructure. Shall I?

To quote one such government official:

> Sex is good but have you tried having your country shutting down its last nuclear power plants in 30 mn?

PunchyHamster 11 hours ago | parent | prev | next [-]

It's funny to portray "USA need more power for GPUs" and then contrast China getting the power to actual industry making actual stuff useful to people

nickff 10 hours ago | parent [-]

We're all too busy filling out forms to manufacture anything in the West. They don't have to declare their conflict minerals contents (which seem impossible to verify), or even try to measure the PFAS in their products (good luck figuring out the PFAS contents of complex products like electronics).

King-Aaron 9 hours ago | parent | next [-]

More like we've spent decades offshoring every step of the manufacturing pipeline - from material processing to manufacturing tooling and all the skills and expertise in between - and now it's reached a state where even if you wanted to spin up manufacturing on the same scale locally, you need those decades again to bring every part of the economy back to support it.

Propelloni 2 hours ago | parent [-]

That's true, but the GP still has a point. Manufacturing is easier in countries with less regulation about it. Yet we have to ask ourselves, how do we want to live?

I mean, we have those regulations because nobody wants to live in Lahore, Pakistan.

deadeye 8 hours ago | parent | prev [-]

100%

Personal experience: In my town a public parking lot could not be built due to it possibly being "endangered moth" habitat.

There are places where you can still build things in the US, but they are more and more scarce.

lovemenot 8 hours ago | parent | next [-]

Are you arguing that USA can no longer build parking lots due to environmental concerns? If so, that would indeed be remarkable since parking lots seem to be the facility that almost every US town has been able to build more than enough of.

lostlogin an hour ago | parent | prev [-]

I’d like to see parking lots go extinct.

fyrn_ 16 hours ago | parent | prev | next [-]

Managed to talk about china's energy buildout _without_ mention of renewables? I think this pivot is 100% designed to get government money: - natrual gas turbine - china is scary - something something it's a race - china energy is good because no regulations, totally not because they are lapping the world on renewable buildout

dzonga 11 hours ago | parent | next [-]

China alone this year has added 221GW of Solar Energy, which is about 2x the rest of the world combined.

it's a nice pivot though - turbines are just turbines.

pfdietz 10 hours ago | parent | prev | next [-]

Turbines are useful even in a 100% renewable powered world.

gridspy 8 hours ago | parent [-]

Perhaps not in a 100% world, though I'll give you the point that they are useful now.

In a 100% renewable world we would not be extracting or refining oil. Natural gas (used by these turbines) is a byproduct of oil drilling. Were we not burning the oil, the natural gas might be too expensive alone.

Also, in a 100% renewable world we would (by definition) have enough generation all the time - (covered by batteries and good baseload sources) that turbine power was no longer required to cover peak loads.

rgmerk 7 hours ago | parent | next [-]

It's not clear (yet) what a 100% clean energy powered world would use to cover the last couple of percent of demand when loads peak and/or variable generation troughs for extended periods.

It'll be some combination of demand management (which isn't nearly as horrifying as people make it out to be), pumped hydro, long-duration batteries like iron-air, but also possibly burning hydrogen or hydrogen-derived synthetic fuels (produced by electrolysis when hydrogen is abundant) and/or biofuels in turbines.

mannykannot 7 hours ago | parent | next [-]

There is a time- honored, straightforward way to deal with the last two percent problem, which is to overbuild by a couple of percent or so.

rgmerk 6 hours ago | parent [-]

That’s not how the maths works unfortunately.

Basically, you end up having to overbuild to crazy levels, or build insane amounts of battery storage, which only gets used a few days a year.

mannykannot 6 hours ago | parent [-]

That is right (if rather exaggerated, and I will note that it was you who originally picked the figure of two percent), and in practice, we accept a certain risk that we will not always have all the capacity we want, even though (or because) we cannot precisely predict how big or often these events will be. There is no particular reason to think this specific case is any different.

plantain 4 hours ago | parent [-]

Why can't we predict how big or how often those events would be? We have clear understandings of the distribution of probabilities for all kinds of weather scenarios - see for example 1-50/100/1000 year flood/droughts.

rgmerk 3 hours ago | parent [-]

We can and do, and there are detailed plans based on those weather scenarios (eg for the Australian east coast grid; there is AEMO’s Integrated System Plan).

Things in the US are a bit more of a mixed bag, for better or worse, but there have been studies done that suggest that you can get very high renewables levels cost effectively, but not to 100% without new technology (eg “clean firm” power like geothermal, new nuclear being something other than a clusterfumble, long-term storage like iron-air batteries, etc etc etc).

fpoling 7 hours ago | parent | prev [-]

Somebody calculated that a home in UK needs 1 Megawatt-Hour battery to backup solar energy during the winter. I suspect in 10 years that may cost below 25K, a small fraction of the property cost.

mannykannot 7 hours ago | parent | prev [-]

Particularly with the development of fracking, natural gas production is no longer a just a byproduct of oil production, and can be (and is) pursued independently. Nevertheless, I agree that we developing renewables should be our priority.

marze 15 hours ago | parent | prev | next [-]

If China had "no regulations" and was building out 100% coal, no one would be worrying that China industry would have an advantage due to low electricity cost vs rest of world.

AuthAuth 11 hours ago | parent | prev [-]

China's energy buildout is still mostly coal. Go look at the last 20 years how much energy they've added for coal vs solar. Dont fall for the "solar has increased by 500%" trap.

nandomrumber 10 hours ago | parent | next [-]

You’re absolutely correct.

China didn’t start adding much in the way of solar prior to about 2020, whereas they added lots of coal generation in the past 20 years.

https://en.wikipedia.org/wiki/Electricity_sector_in_China

seanmcdirmid 10 hours ago | parent [-]

They are replacing old coal plants with more efficient cleaner designers. National security wise they still have lots of coal to work with, while most renewable energy is generated in the west where ongoing grid upgrades are needed to use it where people live (in the east).

fpoling 7 hours ago | parent [-]

The newer plants not only more efficient going from 30-35% of peak efficiency to something like 45%, they can also operate efficiently over wider range of power output and are faster to turn on/off.

This is very helpful to deal with variability with renewable output.

pfdietz 10 hours ago | parent | prev [-]

Coal consumption has peaked there. Solar is growing explosively.

AuthAuth 9 hours ago | parent | next [-]

Dont you think its a bit naive to be saying something peaked when it hasnt even been a year?

rgmerk 3 hours ago | parent [-]

The economics are pretty strikingly in favour of renewables and batteries, and one thing China does not have is cheap natural gas.

specialist 10 hours ago | parent | prev [-]

Yes and:

Recent Volts episode has great overview of China's electro-tech build out, world is at or near peak fossil fuel across all sectors and countries (with 1 notable exception), etc.

Clean electrification is inevitable - A conversation with Kingsmill Bond of Ember Energy. [2025/11/21]

https://www.volts.wtf/p/clean-electrification-is-inevitable

jjk166 7 hours ago | parent | prev | next [-]

I spent years working in aerospace turbines. This is BS. Power generation turbines are designed to work at ambient sea level conditions. They don't rely on ambient air being especially cold for cooling, they can keep cool thanks to the large mass flow rate.

There is no technological difference between boom's engine and conventional jet turbines. It is still a subsonic turbine, it just happens to sit behind a diffuser that slows the air from supersonic to subsonic speeds. Genuine supersonic turbines are a radically different, and much less efficient, technology. Turbines for supersonic propulsion are actually more temperature sensitive and less efficient than those for subsonic applications specifically because they need to prevent more heating in the compression stages to keep their combustion chambers stable.

The other talking points are likewise bogus. The problem with aeroderivative turbines is maintenance - planes need to be high performance and don't stay up in the air for very long, so their engines are designed around frequent maintenance events. Powerplants, especially those for datacenters, need consistent uptime, not good power to weight ratios.

Boom isn't doing anything special in terms of materials or data monitoring. Yes, power turbines have been a thing for decades, and in those decades they have been arguably the most advanced machines humans have built industrially at any given time. Going back to the maintenance thing, turns out people really want to know if there's an issue before their $200 million machine fails.

I like Boom, I have friends working for Boom. I presume this is just an elaborate way to hop on the AI investment bandwagon. I get it, but it's still ugly to see. I hope this doesn't begin a string of hype-creep that causes their actual goal to fail.

chii 7 hours ago | parent [-]

> elaborate way to hop on the AI investment bandwagon ... hype-creep that causes their actual goal to fail.

their current goal might already be "failing" (as in, lack of real demand for hypersonic travel). Investment getting hard to obtain means they're looking for more/broader investment from other investors. Thus, the hopping on of the AI bandwagon.

It doesn't paint a pretty picture tbh.

bradfa 10 hours ago | parent | prev | next [-]

It’s interesting that this implies that building natural gas pipelines to data centers is easy, at least easier than building out substations and transmission lines. Because you don’t run a (or several) 42MW natural gas generator without a big fat natural gas pipe.

Why is it so much easier to build the pipelines than to bring in electric lines?

fpoling 7 hours ago | parent | next [-]

In Texas a lot of natural gas is wasted/burned away as it is not profitable to collect and transport it from all oil fields. These days quite a few places put small turbines to generate electricity to do cryptocurrency mining.

This will serve a similar use case just on a bigger scale.

unwind an hour ago | parent [-]

That is the most William Gibson thing I've read today, at least. Wow.

bob1029 9 hours ago | parent | prev | next [-]

> Why is it so much easier to build the pipelines than to bring in electric lines?

It's not necessarily easier to do one or the other. It's about which one is faster.

seanmcdirmid 8 hours ago | parent | prev | next [-]

WA state has the advantage of cheap electricity due to hydro projects, and before they were able to ship off their surplus to CA, they did a lot of aluminum production here to take advantage of it. I can see natural gas working similar, but I’ve also heard data centers want to take advantage of cheap hydro and wind power in western states.

johnsmith1840 8 hours ago | parent | prev | next [-]

They want to build them near the oil fields in texas. As of now most of those fields already run without much if any power infra in place on top of that they would be right by the natural gas generation.

Add that the manpower and expertise of running generators is abundant there and it's a prettt solid idea if they can actually make it.

pwarner 10 hours ago | parent | prev | next [-]

Transmission loss in gas pipes is probably lower than electric transmission? Underground probably easier than above ground. Lastly I think they are building data centers near natural gas fields...

stephen_g 9 hours ago | parent [-]

I wouldn't expect so, because it's not just fugitive emissions we're talking about, but that you need to run a lot of big compressors to run pipelines. But often that cost isn't really counted because they just burn more gas to power them.

mNovak 10 hours ago | parent | prev | next [-]

I'm guessing it's not just the overhead lines, but you need the actual power plants somewhere.

trhway 8 hours ago | parent | prev [-]

>Because you don’t run a (or several) 42MW natural gas generator without a big fat natural gas pipe.

at 40KWh/kg and 50% efficiency you'd need 2 tons/hour for a 42MW generator, which is a one large tanker per day. Thus you can do without gas pipeline which is a big advantage over electric wires and other static infra when you need to scale power quickly.

Sidenote - it all brings memories of how 34 years ago i worked couple months in a Siberia village powered by working 24x7 gas turbine from a helicopter.

Vs. the original article - i doubt that supersonic core is the best. Supersonic engine is designed to get a significant pressure from ram effect. Until supersonic speed reached, such an engine has bad efficiency due to low compression - that is why Concorde was accelerating to supersonic speed on afterburners (atrocious efficiency just to get to efficient speed as fast as possible). The modern engines from say 787 - they have high compression and best high temp mono-crystal blades, etc. - would be much better.

gjrq 8 hours ago | parent | prev | next [-]

Oh come on, what is this crap? Absolutely no thermal efficiency numbers or anything else you could use to validate any claims. Especially if you are claiming that an aero-derived turbine is somehow going to be better than a purpose-built unit.

The "supersonic engines are better because they are designed to operate at hotter temperatures" argument is particularly insane: turbine efficiency is driven by turbine inlet temperature (already 3000ish C), not ambient temperature.

I suppose it's only right that VCs are going to get scammed by LLM slop.

mNovak 8 hours ago | parent [-]

Unfortunately there's too much distraction regarding the AI side of the discussion, to actually look at the generation tech itself.

For all their discussion of high temperature operation, it seems the only advantage at the end of the day is to eliminate water consumption in cooling. I question if that's really so valuable?

gjrq 8 hours ago | parent [-]

I also don't think it's necessarily true? A jet engine (which many many power turbines can run off of) can obviously run without cooling water on a hot day just fine.

ggm 10 hours ago | parent | prev | next [-]

Gas turbines have a role in energy production worldwide. If this means they can run more efficiently, then there's a place for it. If the intent is to run 24/7 then it should replace existing Gas 24/7 service deployment, not add new, unless there is a reason wind+solar+storage and a (smaller? different configuration) gas peaker cannot do the job.

If this works as a rapid start gas peaker, it could help in the shift off coal and diesel. It depends on the CO/CO2 burden.

kreelman 10 hours ago | parent | next [-]

It could be a good, relatively portable gas peaker. Though I would have thought batteries might be a better step for peak load management?

This might sit somewhere between peak load and base load?

Since the CO/CO2 exhaust from this turbine should be able to be captured fairly well, would it be possible to capture it on the spot into tanks of some kind? There are most probably some large thermal issues to deal with here.. I also wonder about the MIT COF-99 (https://www.scientificamerican.com/article/exotic-powder-pul...) that eats up CO2 very efficiently.

If simply CH4 is being passed to the turbine, is the water generated from the combustion being captured anywhere?

What about the sound characteristics of this beasty? There are cases in the US of people noticing the new AI data centre fans whining at all hours.

There'll be an engineer/physicist out there somewhere who'll come up with a generally efficient way to move heat around (Graphene ?) and he'll start a multi-billion dollar business.

pdx_flyer 10 hours ago | parent | prev [-]

There are already quite a few rapid start gas peakers not only being produced but in-service. Nothing about Boom's stands out as being significantly different.

ggm 9 hours ago | parent [-]

thats kind-of what I thought. GE sell a lot, so maybe this introduces some supply chain diversity and has a different maintenance burden and duty cycle. Thats about it.

fluxusars 3 hours ago | parent | prev | next [-]

This to me is the strongest proof that we are in a bubble so far.

exabrial 6 hours ago | parent | prev | next [-]

> announcing Superpower, our new 42‑megawatt natural gas turbine

Is global warming solved? Last time I checked, I was to throw away my repairable ICE vehicle for an expensive unrepairable disposable vehicle in order to save the planet. Just curious how a 42-megawatt gas turbine is helping the planet.

rgmerk 6 hours ago | parent [-]

You missed the iron law of the universe, which is never get between a capitalist and the possibility of a bucket of money.

namirez 10 hours ago | parent | prev | next [-]

Well, even Blake knows that Overture is highly unlikely to survive as a product. Best of luck to him with this pivot. I really wish him success. He has spent more than a decade of his life on this project.

tim333 5 minutes ago | parent [-]

I'm curious how the planes are going. Looking it up it seems th XB-1 prototype did mach 1.1 but then they retired it which seems odd as it's design was for mach 2.2 and a 1000 mile range. If they could say to investors we said 2.2 and look, it really happened than might be a better sell?

kristianp 10 hours ago | parent | prev | next [-]

> Superpower is sort of like our Starlink moment

Great analogy if it pays off.

I'd wonder how it competes with nuclear for scale and existing gas turbines for cost and efficiency.

robotresearcher 10 hours ago | parent | prev | next [-]

"AI didn’t just need more turbines—it needed a new and fundamentally better turbine. Symphony was the perfect new engine to accelerate AI in America."

I completely hate that we can't just motivate this in terms of making electricity, the stuff we all use every day for a hundred things. No, it has to be about AI. Bah!

maxglute 10 hours ago | parent | prev | next [-]

Now deliver 500 turbines by Q2 2026... oh you can't because you need 4-5 years to build and scale up manufacturing and train a skilled workforce? Well that's better than 5-10 years to build centralized power plants... or just truck in a shit load of low skilled Mexicans to build out island solar and battery to alleviate bottle neck and throw in a bunch of diesel/gas generators.

The problem isn't better turbine, it's lead times that can satisfy data center demands at current rollout timeline. America being america makes large scale centralized infra difficult, building supply chains for essentially aviation turbines may be faster, but not more than just slapping down renewables and diesel/gas generators. You can get all the commodity generators and solar tomorrow.

Like ~85% of of PRC's new power generation this year growth is mostly renewables. It's a new distributed tech stack that can be spung up at scale incredible speed vs centralized generation infra. PRC built out about 300GW of renewables this year, US data centre needs projected at 100GW by 2035 with no sign centralized plants will be online in time. Combine with some dirty generators and US datacentres can survive on islanded utilities until the bubble burst.

qwe----3 10 hours ago | parent [-]

> It's a new distributed tech stack that can be spung up at scale incredible speed vs centralized generation infra.

When you get too much renewables solar/wind you can get blackouts like spain did. Fast grids fail fast. It's also important to have grid inertia to resist changes in frequency (which you get from due to the kinetic energy stored in spinning generators)

phh 7 hours ago | parent | next [-]

You can make frequency inertia with solar (even without batteries if you accept running with a constant reserve so with reduced efficiency). Spain showed that there is a learning curve, that's for sure, but their issue was a "simple" oscillation problem that can be fixed by adjusting frequency-follow rate and grid-disconnect rules. It wasn't like a peak of energy consumption or loss of energy production that only a rotating mass could compensate.

maxglute 10 hours ago | parent | prev [-]

Hence Islanded i.e. skip grid because US incompetence is inability to hook up grid with multiyear lead times due to skilled labour shortage. The entire point is to skip the grid or rather, due to US constraints, hook up to grid not really an option to meet rollout timelines.

plorg 16 hours ago | parent | prev | next [-]

Selling shovels

jb_rad 8 hours ago | parent | prev | next [-]

This sounds like the “t-shirt printers” of the 90s. While everyone was busy trying to invent the future, boring old manufacturing got ignored.

Turns out printing t-shirts isn’t that different from printing silicon. Now Taiwan produces 90% of the world’s advanced chips and NVIDIA is the most valuable company in the world.

Boom’s founder, Blake, comes from a e-commerce background. What a legend for this innovation.

rayiner 8 hours ago | parent | prev | next [-]

> Meanwhile China is adding power capacity at a wartime pace—coal, gas, nuclear, everything—while America struggles to get a single transmission line permitted.

I have been saying for years that upgrading civilization requires more power output, not conservation and windmills. If we had been investing in nuclear since the 1960s we would be ready for the needs of next generation technologies and we could do it without burning fossil fuels.

tintor 9 hours ago | parent | prev | next [-]

How much pollution would this generate?

tikimcfee 9 hours ago | parent [-]

This is all I can think of and it depresses me how exciting the video is about turning more materials into emissions. I get I have no power over these people building this, but I just wish they didn't make it. I don't want the world to keep building more amazing ways to burn things I or my neighbors will eventually have to breathe in.

littlestymaar 4 hours ago | parent | prev | next [-]

I found this paragraph very interesting:

> If America wants to build at the speed AI requires, vertical integration isn’t optional. We’re standing up our own foundry and our own large scale CNC machining capability.

Yet China, the industrial superpower, doesn't work like that. Nothing is vertically integrated and instead a massive amount of suppliers are part of a gigantic and flexible supply-chain.

The fact that CCP's China able to have a working market of independent industrial actors, whereas Venture Capital-funded America can only works with corporation-scale central planning is an interesting paradox that I would like to have an in depth explanation for.

trehalose 16 hours ago | parent | prev | next [-]

How loud are these turbines? Where will they be used?

jdc0589 15 hours ago | parent [-]

I can't wait for the town hall meetings in areas where a datacenter is coming "you want us to live next to supersonic jets powering a datacenter?"

wmf 9 hours ago | parent [-]

Already happening: https://www.memphisflyer.com/southaven-residents-raise-conce...

fortranfiend 9 hours ago | parent | prev | next [-]

Hmm curious as to how loud it will make the data center.

teeray 16 hours ago | parent | prev | next [-]

> About three months later, we had a signed deal for 1.21 gigawatts and had started manufacturing the first turbine.

Great Scott!

rje99 16 hours ago | parent | next [-]

I think we had the same though at the same time. Did you also hit your head on the toilet?

npodbielski 15 hours ago | parent | prev | next [-]

What is strange about it? Normal power plants have 2-3 gigawatts. Gas turbine having 300MW is probably just below average. What am I missing? Is it some US thing where G scale is not 10^9?

foxglacier 14 hours ago | parent [-]

It's a joke about the movie Back To The Future and 1.21 Jiggawatts.

npodbielski 13 hours ago | parent [-]

Ah now it makes sense.

cortesoft 16 hours ago | parent | prev | next [-]

That is clearly an intentional reference.

bitwize 16 hours ago | parent | prev [-]

They probably did that deliberately, like when Google IPO'd for $2,718,281,828.

d_silin 16 hours ago | parent | prev | next [-]

It is at least 50% AI slop.

Siemens power-generating turbines are designed for -50C/+50C temperature envelope. All jet engines lose efficiency at higher ambient temperature due to thermodynamics, no matter how good their HP turbine blade tech.

jillesvangurp 15 hours ago | parent | prev | next [-]

AI data centers still consume a lot less than most other things on the grid. In percentages it's less than 1%. Much less. It might get to a percent in a few years. The energy demand growth from other sources is much more significant. Things like industrial heating, domestic heating and other domestic usage, transport (car and truck charging), etc. are growing much more aggressively than even the most aggressive growth scenarios for AI.

Electrification of the economy, which is a thing that at least the US is way behind on, is going to be a massive driver of electricity demand across the world. And a lot of countries are going to benefit from cost savings there. Not having to import expensive oil and gas in favor of cheaply produced solar/wind energy is going to wipe out quite a few billions from the trade balance of countries across the world. China is leading by example here. Their diesel imports are declining sharply already. Investments in renewables are rising accordingly. This is not driven by green washing but by raw economics.

For the same reason, oil and gas prices usage is predicted to enter a steady decline pretty much everywhere. The IEA (known for overly conservative oil biased predictions) is predicting this will be in decline by 2030. They are probably wrong again and it might be a few years sooner. In China next year is a better estimate.

Most growth on the grid (80-90%) is driven by renewables + battery addition to the grid. It's actually not even close in most countries. Including the US. Gas turbines are hard to get in a hurry. Most of the ones that are realistically going to be installed soonish were ordered quite some time ago. Same with nuclear reactors. Supply of those is even less elastic (decades rather than years).

In the mean time, there are hundreds of gw of clean energy (which can be ordered and brought online with very short lead times) coming online every year. Think a few dozen of nuclear reactors worth of capacity. In the US alone. Every year. Vs. a handful of nuclear reactors over the next decade. And a sprinkling of gas plants barely replacing lost capacity (closures of coal and older gas plants). All at great cost of course and typically after long delays.

A lot of the AI related fossil fuel usage growth is increasing load on existing infrastructure; which for cost reasons was being under utilized. As soon as cheaper power can be secured, that capacity will revert back to being underutilized. That's just simple economics.

Whether the US will be able to adapt to other countries doing things cheaper and better than them remains to be seen. It looks like it will have lots of expensive and obsolete gas infrastructure pretty soon. And a lot of debt that financed that. And a lot of data centers operating under high gas prices competing with data centers built close to ones with access to cheap renewables might become a thing as well. Some people are predicting a bubble. When that bursts, the more economical data centers might have a higher chance of surviving.

phire 8 hours ago | parent | prev | next [-]

I hate the product.

But as a business staggery for Boom Supersonic, it kind of seems like a good idea. They get a (hopefully short term) revenue stream, and a whole bunch of "real world" testing on their engine core.

skywhopper 16 hours ago | parent | prev | next [-]

Burning more fossil fuels in noisy, polluting ways is not a good tradeoff considering most “AI” itself is questionably a net positive, and certainly not worth the current levels of investment.

allenrb 8 hours ago | parent [-]

Notice as well that no mention of efficiency was made. Perhaps I missed it, but I’m somewhat familiar with power generation, and usually efficiency is front and center.

Fact seems to be, nobody doing “AI” gives a damn.

rje99 16 hours ago | parent | prev | next [-]

1.21 jigowatts? Great Scott! the only power source capable of generating 1.21 gigawatts of electricity is a bolt of lightning

msandford 16 hours ago | parent | prev | next [-]

Today I learned a thing! It makes sense that subsonic engines and supersonic engines would be different in retrospect but upon reading the headline I thought for sure it was going to be some kind of weird "jump on the AI hype train" article.

Good for them for trying to find a profitable proving ground for their engines.

rgmerk 10 hours ago | parent [-]

Seriously? This couldn't be more "jumping on the AI hype train" if it tried.

MengerSponge 16 hours ago | parent | prev | next [-]

Does it make anyone a little sad that we could have actual abundance with solar and wind and nuclear?

Also, this is only commercially viable because this regime has rendered the EPA functionally powerless.

infecto 16 hours ago | parent [-]

Not really. Makes me hopeful. The constraint right now to renewables in America is connecting them to the grid. The lead times are still in the years.

I am hopeful that these constraints breed innovation and new solutions to the space.

pdx_flyer 10 hours ago | parent | prev | next [-]

Grifts really have become mainstream.

teach 16 hours ago | parent | prev | next [-]

Normally I try to go with the most charitable interpretation, but this article makes it difficult.

> Meanwhile China is adding power capacity at a wartime pace—coal, gas, nuclear, everything....

China is adding solar. Mostly solar. The word "solar" does not appear even once in this press release, and that seems disingenuous.

I _do_ think there's a place for more efficient use of the fossil fuels we do have. People are going to continue to burn natural gas for a while, so we might as well do it better I guess. But America isn't going to make up the energy deficit with fossil fuels, no matter how "clever" we are.

PunchyHamster 11 hours ago | parent | next [-]

> China is adding solar. Mostly solar. The word "solar" does not appear even once in this press release, and that seems disingenuous.

They are adding everything. They know baseload is important so they build nuclear. They know they can't fill the hole fast enough, so they are still building some coal.

delichon 15 hours ago | parent | prev | next [-]

> China is adding solar. Mostly solar. The word "solar" does not appear even once in this press release, and that seems disingenuous.

On the contrary, check out this graph:

https://ourworldindata.org/grapher/energy-consumption-by-sou...

Solar is a tiny portion of new energy capacity in China compared to coal, oil, and gas. But it is similar to nuclear as of 2024. New coal production swamps everything else combined.

VoidWhisperer 15 hours ago | parent | next [-]

They already have well over double the US solar output (US solar output is about 750 Twh according to this source, while China's is a bit over 2000 Twh) and their YoY solar increase is about 4x the US (600 Twh increase in China vs 150 Twh increase in the US)

They are also increasing coal usage, you are correct, however in the past 2 years, their solar output has increased significantly, to the point where it increased more than their coal output in 2024.

My point is that the comment you are quoting is actually technically correct, if you compare 2023 and 2024 in that graph for example, solar was the largest increase in output.

delichon 15 hours ago | parent [-]

It may be huge someday, but now it is niche, and a tiny fraction of new capacity. Coal is king and not about to be dethroned.

ZeroGravitas 15 hours ago | parent | prev | next [-]

In the last year of that graph 2023-2024, the increase in solar was greater than any other source, including coal, it's 15x greater than nuclear.

And unless people are shoveling coal directly into the data centres this electricity generating gas turbine is intended to be used for the electricity generation mix is more appropriate to conapre:

https://ourworldindata.org/grapher/electricity-production-by...

AuthAuth 11 hours ago | parent [-]

why are you fixating on 1 single year? Look at the past 10 years or past 5 years and its the complete opposite.

Tadpole9181 10 hours ago | parent [-]

Why are they looking at the most recent year when discussing the changing trend of exponential differential growth to point out it has now surpassed others, instead of the prior years where that differential was slower and the other was still growing faster?

I mean... Seems obvious, no?

AuthAuth 9 hours ago | parent [-]

No because they are highlighting a single year where solar was exceptionally high and when you look at a 5 year period it tells a completely different story. If you look at future investment there is still 60 trillion being spent on new coal and while thats smaller than the future investment in solar you need to account for the fact that there current power is already 60% coal.

Even if we give China the most charity and take their 2025 results at face vault(even though they NEED to be independently verified) China is at best average when it comes % of gridpower that is renewable. Off the top of my head I think they are like 27-30% renewable. But its actually worse because they are the biggest polluter by a mile. Bigger the next 6 biggest polluters combined.

ZeroGravitas 29 minutes ago | parent [-]

It wasn't a "single year where solar was exceptionally high" because they generated more in 2025 by mid August than they did in the full year of 2024.

https://ember-energy.org/data/electricity-data-explorer/?ent...

The coal line was slightly under the previous year’s and is now overlapping i.e. no growth compared with last year (data up to October)

pfdietz 10 hours ago | parent | prev | next [-]

> Solar is a tiny portion of new energy capacity in China compared to coal, oil, and gas.

That graph shows production, not capacity, nor installed capacity in each year.

nandomrumber 10 hours ago | parent [-]

Well good, those are the correct numbers focus on because:

Solar capacity and say nuclear / coal / gas / hydro / fuel oil capacity

Are different beasts.

When solar advocates bang on about adding X gigawatts of capacity, they’re being dishonest. What they really mean is they added X/4, because, obviously, it’s sunny only about 25% of the time throughout a year.

Adding batteries doesn’t change that. Still have to over build.

So let’s focus on the numbers that reflect actual production, so we can have an honest conversation.

Nuclear / coal / gas / hydro / fuel oil, even biomass have capacity factors typically about 80%, often about 90%.

Wind and solar are never going up ro those capacity factors, even with batteries (including pumped hydro).

throawayonthe 15 hours ago | parent | prev [-]

are we looking at the same graph? if you look at the past decade or so, the "solar" slice is clearly widening the fastest

delichon 15 hours ago | parent [-]

In the graph I'm looking at, with no extrapolating, solar energy is a tiny sliver of coal. If I extrapolate, crossing of the lines looks like something in the far future.

pfdietz 10 hours ago | parent [-]

So, if you ignore obvious trends, you can reach a conclusion you like.

Have you considered working for the IEA?

https://x.com/RARohde/status/1989447673108410835

MengerSponge 16 hours ago | parent | prev [-]

This is designed for "fast" and "high power", but not for efficiency: it's not a combined cycle plant.

m4rtink 10 hours ago | parent [-]

Yeah, its totally inefficient - according to Wikipedia a simple cycle gas turbine can be up to 43% efficient - with a combined cycle (you boil water with the first stage jet engine exhaust and then run a steam turbine off that) it can get up to 64%.

So like this there is possibly about 20% of (a lot of) energy/fuel just wasted. You can get even better, running something like a city wide district heating off the waste heat from the steam turbine - potentially reaching 100% in the sense that people get heating, warm running water or possibly also process heat for industrial use.

Or you can do none of that and power a datacenter of questionable utility with it at about 40% efficiency. :P

scblock 18 hours ago | parent | prev | next [-]

This feels cynical and ugly, and I am pretty disgusted by the way things are going in this space. I don't see any reason to trust Boom based on their history, and I am sick and tired of the "solution" to bad ideas being more bad ideas. We need renewables and grid infrastructure, not yet more fossil fuels.

Additionally,

1) Aeroderivative gas turbines have been around for decades. "Oh but we have supersonic engines" does not change the fundamental equation

2) They're proposing burning more fossil fuels dug up from the ground to feed a beast that in my opinion is destroying the entire world economy, and certainly harming freedom

3) Where are they even getting the fuel? Magic? Someone has to build the pipelines, and someone has to supply the fuel.

Note: edited for civility

dang 16 hours ago | parent [-]

Whoa - no matter how wrong someone is or you feel they are, or how strongly a topic makes you feel, you can't post like this to Hacker News. It's vastly against the site guidelines.

If you'd please review https://news.ycombinator.com/newsguidelines.html and stick to the rules when posting here, we'd appreciate it.

Edit: you've unfortunately been doing this repeatedly lately - for example https://news.ycombinator.com/item?id=46166929 and https://news.ycombinator.com/item?id=45836368 - and we've already warned you once (https://news.ycombinator.com/item?id=44682844). If you keep posting like this, we're going to end up banning you. I don't want to ban you because your account also posts good things, so if you'd please fix this, we'd be grateful.

noosphr 16 hours ago | parent [-]

>someone

https://www.ycombinator.com/blog/boom-yc-w16-is-building-an-...

dang 16 hours ago | parent [-]

Yes, Boom is a YC startup, and the GP comment was unacceptable and the sort of thing we ban accounts for. Both are the case, and that doesn't change depending on who a comment is talking about.

scblock 16 hours ago | parent [-]

Edited for civility. But the sentiment remains.

josefritzishere 16 hours ago | parent | prev | next [-]

Hear me out... we could just stop building enormous AI data centers for money suck products with no actual net positive revenue.

whatsupdog 16 hours ago | parent | prev | next [-]

Great, that's what we need. More fossil fuel powered, CO² emitting, supersonic turbines polluting our environment. Unless I see a sea of solar powered carbon capturing machines,somewhere in the Saharan desert, churning the CO² back to natural gas to power these turbines, I hate this.

kwanbix 16 hours ago | parent | next [-]

Hey, but imagine all the nano banana images we can create!

plorg 16 hours ago | parent | prev [-]

I think you're missing the point. Once we've bruteforced the computer god into being he will absolve us of all the sins of destroying the place we live and magically create for us a utopia of so much free energy that we won't have to worry about having an atmosphere.

brendoelfrendo 15 hours ago | parent | next [-]

We will create computer god and ask it how to save our environment and climate and it will look at all the data we have fed it over the years and say "You've known the answer for decades, you just didn't like it. Not building me would have been a good start."

whatsupdog 16 hours ago | parent | prev [-]

I wonder how these elites (you are one, if you can reach San Altman by text) are so detached from reality, that they think that bragging about a gas powered turbine, in this day and age, in the given environment, for something as ludicrous as predictive text generation is a such a flex!

oersted 16 hours ago | parent | prev | next [-]

> I texted with Sam Altman—who confirmed power was indeed a major constraint.

Such a cheap flex right up-front, and with an em-dash to boot. I get it, it's powerful to boast about such a connection. It's just not very classy.

salt4034 16 hours ago | parent | next [-]

Here's how academics do it:

> Sam Altman confirmed power was indeed a major constraint [1].

> [1]: Personal communication.

Or even better:

> Power is a major constraint (Sam Altman, personal communication, December 9, 2025).

lowkey_ 10 hours ago | parent | prev | next [-]

I didn't read it that way because Boom went through YC while Sam was president of YC. The connection makes a lot of sense, and dates back to pre-OpenAI days.

I would assume he's just telling the story as it happened.

plorg 16 hours ago | parent | prev | next [-]

It's also a kind of ideological signpost.

wombatpm 10 hours ago | parent | prev | next [-]

We’re looking at classy as a small dot in the rear view mirror with this current generation of elites.

groby_b 16 hours ago | parent | prev | next [-]

[flagged]

codyb 16 hours ago | parent [-]

So many cults of personality these days between Musk, Trump, Altman, Neuman (WeWork guy)...

Maybe it started with Jobs, maybe it's always been a thing in other spaces (politics, religion...) and is now coming to business and these uber wealthy individuals who put their pants on two legs at a time

oersted 16 hours ago | parent [-]

It also seemed to be like that 100-150 years ago, with all the big-name robber barons, oil/steel/rail tycoons and inventor-industrialists like Edison or Ford.

There are times when concentration of capital leads to a disproportionate influence of personal relationships and one-on-one deal-making. The same can be said of political or attention capital, not just wealth.

To be fair, that's also what Aristocracy always was, they were just less active in forcing their mad visions onto the world.

georgefrowny 16 hours ago | parent | prev [-]

It's also such a stupid question to ask. No one doubts AI needs fuckton of power. Not the fanboys or the haters or even the don't-cares.

What next? "I emailed Donald Knuth—who confirmed software does mostly run on computers"? "I at-ed the Pope who confirmed that he is currently a Catholic"?

wombatpm 10 hours ago | parent | next [-]

But if it wasn’t AI it would be something else. Remember when Bitcoin was consuming all the energy and destroying the environment?

giancarlostoro 16 hours ago | parent | prev [-]

I asked Florida man if there's a gator in the nearby lake, he said prolly

stego-tech 16 hours ago | parent | prev | next [-]

Just vomited in my mouth a little bit. A supersonic aerospace company doing a half-assed pivot into fossil fuel electricity generation to, what, try to simultaneously capitalize on AI CAPEX while also soliciting government handouts?

Come on, get serious.

tomhow 11 hours ago | parent | next [-]

Please don't post snarky, shallow dismissals on HN. You may not owe aerospace startups any better, but you owe the community better if you want to participate here.

https://news.ycombinator.com/newsguidelines.html

JohnMakin 15 hours ago | parent | prev | next [-]

And it started by browsing X, as most things do, of course.

foxglacier 14 hours ago | parent | prev [-]

What are you trying to say? That no company that makes money from the market can also try to get government funding, even for a different part of their business? Or is this only supersonic aerospace companies, not conventional aerospace? Or only if it's fossil fuel. What a bizarre list of conditions to make you vomit. You can't possibly have thought of that in advance. I suspect you don't know what you're saying at all.

stego-tech 13 hours ago | parent [-]

I’m not going to bother formulating a serious response to such an incredibly insane attempt at shoving words and positions into my mouth to fit your own preconceived narrative.

Be better.

foxglacier 9 hours ago | parent [-]

I tried my best to understand your position but the more details I included from your statement, the more ridiculous it became. You should just say what you mean instead of that.

lawlessone 16 hours ago | parent | prev | next [-]

all this for predictive text, not even robotics. Not protein folding, not simulations of the early universe. Not even some embodied AI learning from a simulated environment.

hinkley 11 hours ago | parent | prev [-]

They're still scrubbing the scorch marks out of the https://en.wikipedia.org/wiki/UPS_Airlines_Flight_2976 tragedy.

I understand that turbines are very handy in power generation but we don't use gyroscopic power storage because the inertia gets scary at high RPMs. Turbines lake the momentum but make up for it by being entirely made of knives. You lose an engine mount or throw a blade and you're deep in the shit.

krisoft 10 hours ago | parent | next [-]

I don’t understand your point about UPS 2976. You make it sound as if people there were hurt by the engine parts hitting them. But in actuality it is the airplane crashing into them which killed those unfortunate.

Even aviation turbines are quite safe and uncontained engine mallfunctions are very rarely a problem. On top of that there is every reason to think that ground based power generating applications can be even safer. There weight is much less of a constraint, so you can easily armour the container to a much higher assurance level. The terrestrial turbine is not jostled around so you have less of a concern about gyroscopic effects. And finally you can install the power generating turbine with a much larger keep out zone. All three factors making terrestrial power generating jets safer than the aviation ones.

hinkley 9 hours ago | parent [-]

The plane suffered an engine mount failure, which tore a hole in the wing, sprayed shrapnel into engine 2, which caused a compressor stall reducing thrust past the survivable level. Then it crashed into a fuel recycling plant with a full load of jet fuel.

The scary part of the mount failure is that the mounts cracked in an unexposed part where visual inspection did not reveal the damage. It wasn't due for a teardown and inspection until it had traveled 25% (80% of the maintenance window) farther. That's why they grounded the entire fleet.

Takeoffs are dangerous because they run the engines hard, and parts are operating in the supersonic range.

krisoft 14 minutes ago | parent [-]

I’m aware of the facts you say. But they have nothing to do with terrestial operations. If the same thing happened to an engine sitting next to a data center the worst thing which could happen is it knocks the neighbouring engines out too. And if you are worried about that you can add more armouring between the engines. Which you can do because they don’t need to fly. Heck you can put a row of hesco barriers between engines in a terrestial application. But either way the data center is not going to suddenly fall on a fuel recycling plant.

dpifke 6 hours ago | parent | prev [-]

We do use gyroscopic power storage, see e.g.

https://h-cpc.cat.com/cmms/v2?f=subfamily&it=group&cid=402&l...

https://www.activepower.com/

...and probably others.

(A couple of decades ago I worked for a company that was a tenant at a datacenter that used these instead of batteries; it's not new or particularly exotic technology.)