What is Bitcoin Halving?
Bitcoin halving is a programmed event that happens approximately every 4 years (or every 210,000 blocks). It cuts the block reward that miners receive in half, slowing the rate at which new Bitcoin is created.
The 2024 Halving
In April 2024, the fourth Bitcoin halving reduced the block reward from 6.25 BTC to 3.125 BTC. This is a critical event that affects:
Impact on Pakistani Miners
For miners in Pakistan, where electricity costs range from PKR 30-65/kWh, the halving has significant implications:
Old Miners Become Unprofitable
Machines like the Antminer S19 (95 TH/s) now struggle to break even at PKR 50/kWh electricity. At PKR 30/kWh (industrial rates), they can still operate but with thin margins.
New Generation Required
Modern miners like the Antminer S21 Hydro (335 TH/s at 16 J/TH) are 4-5x more efficient. They remain profitable even after halving.
Mining Pools Matter More
With smaller rewards per block, joining a reliable pool like Foundry USA or AntPool becomes critical to smooth out variance.
What to Do as a Pakistani Miner
1. Audit your electricity cost — Anything above PKR 35/kWh makes older miners unprofitable
2. Consider hydro cooling — Reduces noise and allows overclocking
3. Mine in winter — Pakistan's cooler months (Nov-Feb) can save 15-20% on cooling costs
4. Join a pool with low fees — Aim for <1.5% pool fee
5. Hold your BTC — Historically, BTC appreciates 12-18 months post-halving
Looking Ahead
The next halving is expected in April 2028, reducing the reward to 1.5625 BTC. By that time, the network will likely require even more efficient miners and lower electricity costs to remain profitable.
For Pakistani miners, this means planning ahead: investing in efficient hardware, securing low-cost electricity contracts, and preparing for the next cycle.