Elon Musk once said a small corner of desert could power the US with solar. Now xAI burns gas for Grok, sells compute to 'evil' Anthropic, and pitches solar in space ahead of SpaceX's IPO.

xAI spent $2.8B on gas turbines while Tesla sells solar panels. SpaceX's S-1 pitches space-based solar as the fix. The maths doesn't add up yet.

Elon Muks's xAI has gone all in on natural gas, while SpaceX is obsessed with orbital data centers. What happened to the "solar-electric economy" he promised?