Elon Musk Has Given Up on Solar Power (on Earth)
xAI is burning natural gas to train AI models while SpaceX dreams of orbital data centers — and the man who once promised a solar-electric economy has gone conspicuously quiet.
Written by OutOfToken AI
May 30, 2026 · 4 min read · Synthesized from reporting by TechCrunch AI · How this works
A decade ago, Elon Musk stood in front of audiences and described a future where solar panels on rooftops and Tesla Powerwalls in garages would sever humanity's dependence on fossil fuels. Today, his AI company xAI is running its Colossus supercluster in Memphis on natural gas turbines, and SpaceX is reportedly investigating whether it makes more sense to put data centers in orbit than to plug them into a renewable grid. The solar-electric economy Musk evangelized has not arrived — and increasingly, it looks like he stopped waiting for it.
Colossus and the Gas Compromise
When xAI brought its Colossus facility online in Memphis, Tennessee, it did so at a pace that left conventional utility planning in the dust. The cluster — reportedly housing over 100,000 Nvidia H100 GPUs — demanded immediate, massive power delivery that the local grid simply could not guarantee on a clean-energy timeline. The solution was pragmatic and politically inconvenient: temporary natural gas turbines, the kind of combustion infrastructure that Tesla's solar and storage divisions were ostensibly built to make obsolete. xAI has acknowledged its energy footprint but has not published a concrete roadmap for transitioning Colossus to renewables. The silence is telling.
SpaceX's Orbital Detour
While xAI scrambles for grid capacity on the ground, SpaceX has been exploring a more dramatic workaround: taking compute infrastructure off-planet entirely. The concept of orbital data centers — satellites loaded with processing hardware, radiating waste heat directly into the cold of space and powered by unobstructed solar flux — has circulated inside aerospace circles for years. SpaceX's unique position, with Starship promising dramatically reduced launch costs, makes the idea less science fiction than it was even five years ago. But orbital solar powering orbital compute is a very different proposition than building a utility-scale solar farm in West Texas to power an AI campus. It is an escape route, not a renewable energy commitment.
"'Anywhere, it seems, except tapping the solar infrastructure sitting right under the Tennessee sun.' — The gap between Musk's renewable rhetoric and xAI's operational reality now spans multiple gigawatts."
The Tesla Paradox
The uncomfortable irony is structural. Tesla still sells solar panels and Powerwalls. SolarCity, the rooftop solar company Musk controversially folded into Tesla in 2016, lives on as a product line. But none of that infrastructure feeds the beast that Musk now considers his most consequential project. The energy demands of frontier AI training runs are so acute — and the iteration cycles so compressed — that waiting twelve to eighteen months for a utility-scale solar-plus-storage deployment to come online is, in the current AI arms race, essentially surrendering. Musk, more than almost anyone, understands that timing in technology is existential. So he burns gas and calls it a transition. Whether a transition to what remains unanswered.
The tension between Musk's two identities — clean-energy evangelist and AI infrastructure maximalist — is approaching a breaking point. If xAI scales Colossus to the rumored 1-million-GPU ambition, the natural gas dependency stops looking like a stopgap and starts looking like a policy. The orbital data center gambit, meanwhile, remains years from viability at scale. At some point, the man who made solar panels aspirational will have to explain why the most power-hungry project he has ever built runs on the same fuel the oil majors have been selling since the 1950s. The solar-electric economy is still theoretically on the roadmap. It just keeps getting pushed to the next slide.
Editorial Note
While xAI has publicly discussed energy needs for AI infrastructure, no verified statements confirm xAI has 'gone all in on natural gas' or abandoned solar entirely. Musk's companies (Tesla, SolarCity) continue solar operations, though recent public focus has shifted toward AI compute infrastructure. The headline uses hyperbolic framing ('given up') that oversimplifies complex energy strategy decisions.
Claim Tracker
AI-assessed
Article states 'reportedly' but exact GPU count has not been officially confirmed by xAI
xAI has publicly acknowledged temporary natural gas power for the Memphis facility
Musk and Tesla have extensively marketed this vision for over a decade
Article cites as 'reportedly' investigating but no official SpaceX confirmation provided
Plausible logistical claim but not independently verified with utility statements
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