At unchanged Bitcoin price, subsidy and fees, the projected 6.5% difficulty cut would leave modeled 95 and 90 TH/s S19s below electricity coverage at 5 cents/kWh.

Bitcoin miners could earn about 7% more per unit of computing power if a projected difficulty cut materializes, but the relief would leave two older S19 variants needing electricity near 4 cents per kilowatt-hour just to cover machine power.

Hashrate Index’s November 9 snapshot, dated 18:00 UTC, projected a 6.5% difficulty reduction around November 13. The mining data platform put current difficulty at 148.36 trillion and spot hashprice at $31.89 per petahash per second per day. Hashprice measures expected daily revenue from a unit of mining capacity, before expenses.

With Bitcoin’s price, block subsidy and average transaction fees per block unchanged, that projected cut would lift hashprice to about $34.11. It would improve the electricity cushion for miners still operating, while leaving a large gap between older equipment and a more efficient S21.

Lower difficulty increases the probability that a given amount of computing work earns a block reward. Expected revenue per unit of work therefore moves inversely with difficulty when the value of rewards stays fixed.

The scenario calculation divides $31.89 by 0.935, the share of difficulty remaining after a 6.5% reduction. That produces a 7% increase and isolates the retarget’s effect. Actual dollar receipts would also depend on Bitcoin pricing and fees.

Bitcoin recalculates difficulty every 2,016 blocks , using block timestamps to target roughly two weeks. November 13 and the size of the cut remain estimates that can change as more blocks arrive.

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