zlacker

[return to "xAI joins SpaceX"]
1. gok+h4[view] [source] 2026-02-02 22:06:22
>>g-mork+(OP)
> it is possible to put 500 to 1000 TW/year of AI satellites into deep space, meaningfully ascend the Kardashev scale and harness a non-trivial percentage of the Sun’s power

We currently make around 1 TW of photovoltaic cells per year, globally. The proposal here is to launch that much to space every 9 hours, complete with attached computers, continuously, from the moon.

edit: Also, this would capture a very trivial percentage of the Sun's power. A few trillionths per year.

◧◩
2. moeadh+Lf[view] [source] 2026-02-02 22:47:12
>>gok+h4
In fairness, solar cells can be about 5x more efficient in space (irradiance, uptime).
◧◩◪
3. __alex+Oh[view] [source] 2026-02-02 22:54:10
>>moeadh+Lf
Solar cells have exactly the same power rating on earth as in space surely? What would change is their capacity factor and so energy generation.
◧◩◪◨
4. bastaw+Mi[view] [source] 2026-02-02 22:57:00
>>__alex+Oh
The atmosphere is in the way, and they get pretty dirty on earth. Also it doesn't rain or get cloudy in space
◧◩◪◨⬒
5. __alex+Jk[view] [source] 2026-02-02 23:04:50
>>bastaw+Mi
Sure but like, just use even more solar panels? You can probably buy a lot of them for the cost of a satellite.
◧◩◪◨⬒⬓
6. rcxdud+Gn[view] [source] 2026-02-02 23:17:31
>>__alex+Jk
The cost of putting them up there is a lot more than the cost of the cells
[go to top]