Bitcoin near $65,000 as MARA CEO says AI beats mining on power returns

Electricity has become more valuable than computing chips, MARA Holdings Chief Executive Officer Fred Thiel said, as Bitcoin miners redirect infrastructure toward AI data centers.

"Power access is now the binding constraint for AI expansion, and miners who spent years securing grid connections hold an asset that technology companies urgently need," Thiel said in an interview.

Bitcoin traded at $65,120 as of 14:00 UTC, down 1.2% over 24 hours, with volume of $27.8 billion versus a seven-day average of $32 billion, CoinGecko data shows. The largest digital asset has held between $60,000 support and $70,000 resistance since mid-July. Open interest across derivatives exchanges stands at $36.2 billion, with funding rates near neutral at +0.005%, according to Coinglass. Bitcoin's market capitalization is $1.28 trillion, with a dominance of 54.3% across all digital assets.

The strategic pivot carries implications for Bitcoin's network security. If the largest public miners increasingly value their energy portfolios above their role in securing the blockchain, hash rate growth could decelerate. MARA, which operates one of the largest mining fleets globally, has already begun separating its Bitcoin holdings from its infrastructure strategy, Thiel said.

Miners Follow the Power Premium

The calculus is straightforward. Bitcoin mining revenue depends on volatile cryptocurrency prices, network difficulty, and block rewards — all unpredictable variables that shift daily. AI hosting offers predictable payments through long-term contracts spanning four to 20 years, with annual escalators tied to inflation.

IREN Ltd. signed $2.8 billion in multi-year AI cloud contracts, pushing its 2026 annualized revenue target past $4 billion, with about 85% already under contract from clients including Microsoft Corp. and Nvidia Corp. The company funded its expansion with a $2.6 billion convertible notes offering carrying a 1% interest rate, hedging dilution through capped call transactions at $110.30 per share.

Hut 8 Corp. commercialized its one-gigawatt Texas campus by signing a second 15-year, $9.8 billion lease. TeraWulf Inc. executed a 20-year, $19 billion lease with Anthropic. CoreWeave, a pure-play neocloud operator, holds a $99 billion backlog and commands a $42 billion market cap despite ongoing net losses.

These decadal leases demonstrate that long-term, fixed-cost power agreements command premiums when redirected toward specialized compute. For miners, the math increasingly favors AI over blocks.

What It Means for Bitcoin

The risk is that companies increasingly value their energy portfolios above their role in securing the Bitcoin network. MARA remains one of the world's largest publicly traded Bitcoin miners, but Thiel's decision to put the asset "in a different box" suggests a separation between Bitcoin's long-term value proposition and the economics of producing it.

Bitcoin's next move may depend on the Federal Reserve's interest-rate decision, spot ETF flows, and major technology companies' AI spending — factors that now intersect with mining economics in ways they never have before. If the trend accelerates, the Bitcoin network could see slower hash rate growth, potentially affecting the difficulty adjustment mechanism that governs block production.

This article is for informational purposes only and does not constitute investment advice.