Bitcoin’s global hashrate has climbed to an all time high in late 2025, crossing the 900 EH/s mark only months after the 2024 halving despite block rewards being cut in half, mining activity has intensified driven by next generation ASIC hardware and cheaper access to renewable energy sources.
Major industrial miners in the U.S., Kazakhstan, and Paraguay are expanding operations through mergers and joint ventures while smaller miners are surviving by switching to immersion cooling setups and tapping into stranded or flare gas energy that large players overlook.
The network difficulty continues to reach historic highs, yet miner profitability (measured in USD per TH/s) has stabilized as transaction fees and Ordinals inscriptions contribute a growing share of total block rewards. Fee markets now account for up to 20% of miner revenue during peak activity periods.
Meanwhile, countries like El Salvador and Bhutan are scaling state backed mining projects using hydro and geothermal power aiming to attract Bitcoin native investment and improve energy monetization.
Analysts predict the next wave of miner competitiveness will hinge on AI integrated energy balancing allowing miners to dynamically shift workloads between Bitcoin proof of work and AI compute when demand fluctuates.
The 2025 post halving phase is proving that Bitcoin mining isn’t dying it’s evolving. The most efficient energy innovative operators are thriving in the new era of high difficulty high fee blocks.