Why is it so much easier to build the pipelines than to bring in electric lines?
This will serve a similar use case just on a bigger scale.
The market seems to be settling on a 5 cable setup and 2GW power transmission (Tenet & other European TSOs have a 2GW Platform build out…).
You could handle that with one set of 1272kcmil aluminum conductors, or two sets of 300kcmil conductors, based off of this wire submittal: https://www.prioritywire.com/specs/acsr.pdf
The voltage drop will be higher than HVDC, but AC transformers are probably an order of magnitude cheaper than HVDC switchgear. That’s the main issue with HVDC, interrupting HVDC current is very difficult since there’s no zero point like with an AC sine wave. High voltage AC breakers use SF-6 to extinguish the arc at the zero point, which happens 120 times per second at 60 hz (100 times per second for 50 hz)
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.
you need to look at numbers instead of intuition - intuition naturally gets us wrong when we deal with unfamiliar things like space.
A ready 10 ton house will cost $500K-1M to place in a well developed area - the cost of land itself, communications, permits, also delays and unpredictability of process, etc. Add to that yearly taxes. Add tremendous electricity costs in case of the datacenter. And all those costs have and will be growing.
Launching 10 tons on Starship - sub-$1M and that cost will drop down to about $100K-200K.
> It implies that building wind and solar on Earth is somehow worse than building it in space _and_ moving the data center there?
exactly. Space is cheap and plentiful :)
It's not necessarily easier to do one or the other. It's about which one is faster.
A lot of the natural gas in the US is in Texas, and a lot of it is flared while pumping out crude. Putting data centers on turbines near the extraction fields out in the Permian Basin makes sense for power. You can build short pipelines or hook into the ones already there.
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.