Bitcoin Mining Costs Soar as Hashrate Hits Records: TheMinerMag
Public miners race to scale as Bitcoin’s hashrate nears the zetahash threshold.

What to know:
- Bitcoin miners face increased pressure as the network's hashrate and difficulty reach record levels, squeezing margins despite stable bitcoin prices.
- Mining costs are projected to rise above $70,000 per BTC due to escalating competition and energy expenses, up from $64,000 earlier this year.
- Public miners are expanding operations to stay competitive, with companies like MARA and HIVE significantly boosting their hashrates.
Bitcoin
The network's mining difficulty hit a record 126.98 trillion, propelled by a 14-day average hashrate of 913.54 exahashes per second (EH/s). Transaction fees in June fell below 1% of block rewards, and hashprice dropped to $52 per PH/s before rebounding slightly.
Escalating competition and energy costs are expected to drive production expenses above $70,000 per BTC, up from $64,000 in the first quarter of the year, the report said.
To remain competitive, public miners like MARA Holdings (MARA), CleanSpark (CLSK), Riot Platforms (RIOT), and IREN (IREN) are accelerating buildouts. MARA grew its hashrate by 30% in May, while
Top-tier ASICs now cost between $10 and $30 per terahash, the report said, with operational payback periods stretching as long as two years. That’s assuming a $0.06/kWh electricity rate — already out of reach for some. Terawulf, for instance, paid $0.081/kWh in the first quarter, pushing its fleet hashcost up by over 25%.
Meanwhile, mining equities are decoupling from bitcoin’s price performance. IREN, Core Scientific (CORZ), and Bit Digital (BTBD) were all in the green over the last month, while Canaan (CAN) and Bitfarms (BITF) were both down double digits during the same time period.
The shift suggests that investors are paying closer attention to business models rather than just Bitcoin’s price action.