150kW solar kit seems to cost around $150k[1]. With the cost of launch with Falcon Heavy, this would pay for about 100kg of payload[2]. Each Starlink satellite weighs ~300kg[3] so I suspect a 150kW "datacenter" satellite would weight much more. Where are the savings supposed to come from? Seems like you could overprovision terrestrial solar panels by 3-4x and still obviously come out ahead. And that's all before considering the R&D costs of building AI datacenter hardware that can survive the orbital radiation environment.

[1] https://sunwatts.com/150-kw-solar-kits/

[2] https://ourworldindata.org/grapher/cost-space-launches-low-e...

[3] https://everydayastronaut.com/starlink-group-4-5-falcon-9-bl...