zlacker

>>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.

>>gok+h4
In fairness, solar cells can be about 5x more efficient in space (irradiance, uptime).

>>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.

>>__alex+Oh
Satellites can adjust attitude so that the panels are always normal to the incident rays for maximum energy capture. And no weather/dust.

You also don't usually use the same exact kind of panels as terrestrial solar farms. Since you are going to space, you spend the extra money to get the highest possible efficiency in terms of W/kg. Terrestrial usually optimizes for W/$ nameplate capacity LCOE, which also includes installation and other costs.