MARA CEO Fred Thiel said this week that the company is rethinking its power strategy because scarce electricity can produce far higher returns when used for artificial intelligence than for bitcoin mining. The shift reflects a broader trend as crypto miners with large energy contracts look for more profitable uses of their power. MARA still plans to mine bitcoin where low-cost or surplus energy makes it attractive, but Thiel's comments signal a strategic pivot.
Why power matters more than machines
Thiel made clear that power, not mining rigs, is becoming the key factor in MARA's strategy. In a market where electricity costs can make or break a mining operation, the ability to redirect that power to higher-margin uses is a competitive advantage. MARA has been securing long-term power agreements, and now it's evaluating which of those contracts are best suited for AI workloads versus bitcoin mining.
AI margins vs. bitcoin mining
The math is straightforward: AI compute jobs pay a premium for reliable, high-density power. Bitcoin mining, by contrast, is a commodity business where margins have thinned as the network hash rate climbs and the block reward halves. Thiel said that scarce electricity can generate far higher returns when directed to AI. That doesn't mean MARA is quitting bitcoin — the firm will still mine where energy is cheap or stranded — but the portfolio is being rebalanced toward AI where the economics are better.
What MARA is doing now
MARA is actively rethinking its power portfolio. The company is likely to convert some of its existing mining sites to AI data centers, or partner with AI firms to lease the power capacity. Thiel didn't announce specific deals, but the direction is clear. The firm still plans to mine bitcoin in locations with low-cost or surplus energy — places where the power would otherwise go to waste. But for every megawatt that could earn more in AI, MARA will chase that return.
MARA isn't the only miner eyeing AI. Riot Platforms and Core Scientific have also made moves into high-performance computing. But Thiel's comments are the most direct acknowledgment yet that bitcoin mining alone may not be the best use of a power contract. If more miners follow, the bitcoin network's hash rate could dip as machines get unplugged or repurposed. That would make mining easier for those who stay — but it also raises questions about the long-term security of the network if too much power shifts away.
One unresolved question: how quickly can MARA actually convert its power portfolio? Building AI data centers takes time and capital, and the market for AI compute is competitive. Thiel didn't give a timeline. But the strategy is set, and the next few quarters will show whether the pivot pays off.
