AI Data Center Boom Fuels Debate Over Bitcoin Network Security and Miner Pivot

AI training and inference are driving a surge in data-center electricity demand, but building new substations and securing grid connections often takes years. Bitcoin miners already control large-scale power contracts, land, substations and fiber connectivity, allowing them to take on AI and high-performance computing workloads faster than projects built from scratch. Success still depends on cooling systems, building retrofits and long-term customers.

A June 30 report said mining sites' grid connections had evolved from a cost of Bitcoin production into an AI asset. On February 26, 2025, Core Scientific expanded its CoreWeave contract to 590 MW, with estimated revenue of $10.2 billion over 12 years. On January 16, 2026, Riot Platforms signed a 10-year, $311 million lease with AMD, beginning with 25 MW and offering expansion to as much as 200 MW.

Bitcoin mining relies on miners deploying computing equipment to secure the network with hashrate and compete for block rewards. As energy, equipment and financing costs have risen and mining revenue has come under pressure, large U.S. miners have begun redirecting capital and power resources toward AI data centers. The shift could reduce hashrate concentration and make the Bitcoin network more decentralized.

Bitcoin's network hashrate fell about 4% from the previous period in the first quarter of 2026, ending five years of growth and marking its first first-quarter decline since 2020. With mining economics deteriorating, several miners are adjusting capital spending and converting existing sites to meet demand for AI infrastructure. The reports did not identify individual companies or disclose investment amounts.