| ▲ | HPsquared a day ago |
| Somewhat different, but this reminds me of an approach that uses temperature gradients in the ocean to power a heat engine. https://en.wikipedia.org/wiki/Ocean_thermal_energy_conversio... |
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| ▲ | jasonpeacock a day ago | parent | next [-] |
| OTECs are amazing, and step 1 of "The Millennial Project: Colonizing the galaxy in eight easy steps"[0] [0]: https://en.wikipedia.org/wiki/The_Millennial_Project There's a shore-based research OTEC in Hawaii, but the best is a floating, closed-loop OTEC in the ocean. |
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| ▲ | AstroNutt a day ago | parent | next [-] | | Interesting link.
I would think step 7 would come before step 6 though.
I thought about this for a few minutes and can't come with a reason otherwise. | | |
| ▲ | adastra22 21 hours ago | parent [-] | | The timelines are increasing powers of 2. It’ll take much longer to colonize all asteroids than to settle Mars. |
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| ▲ | andbberger a day ago | parent | prev [-] | | wiki article states "Up to 10,000 TWh/yr of power could be generated from OTEC without affecting the ocean's thermal structure". which converts to about 500GW which... isn't that much | | |
| ▲ | pezezin a day ago | parent | next [-] | | 10 000 TWh/yr is one third of the current total electric energy generation of the whole planet, is not a small amount. Source, page 39 of the full report: https://www.iea.org/reports/global-energy-review-2025/electr... | |
| ▲ | nine_k a day ago | parent | prev [-] | | This can't be correct. 10,000 TWh/y = 1e+7 GWh/y, divide it by 365.25 days/y to produce daily output of 27,379 GWh/day, then by 24 h/day to get pure power of 1,141 GW. It's still more than a terawatt, three orders of magnitude larger than the largest nuclear reactors. | | |
| ▲ | andbberger a day ago | parent [-] | | oops. yes. still not that much though. i mean it's a lot but it's "one more large industrialized country" a lot not "kardashev 2" a lot | | |
| ▲ | WJW 14 hours ago | parent | next [-] | | Kardashev 2 has a Dyson sphere. Of course anything on a single planet can never have that much. | |
| ▲ | IAmBroom 9 hours ago | parent | prev [-] | | Those goalposts of yours are on a FTL ship... |
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| ▲ | a day ago | parent | prev [-] |
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