Posts by Dr Jan van Niekerk
Hosted Mining vs Home Mining in South Africa
An SA-specific comparison of hosted mining vs running ASICs at home, covering all-in costs, uptime, and the call most miners get wrong.
Read MoreSolar-Powered Bitcoin Mining in South Africa
An honest SA take on solar Bitcoin mining in 2026, covering array sizing, battery maths, hybrid setups, and 5-year total cost of ownership.
Read MoreHydro and Immersion Cooling for Bitcoin Miners in SA
An honest SA guide to hydro and immersion cooling for Bitcoin miners, with capex, opex, and maintenance reality on a 5-rig setup.
Read MoreLitecoin and Dogecoin Merge Mining in SA
An SA-focused guide to merge-mining Litecoin and Dogecoin in 2026, covering Antminer L7 and L9 picks, pool selection, and payback at three power scenarios.
Read MoreKaspa (KAS) Mining in South Africa
An SA-focused guide to Kaspa mining in 2026, covering KS5L picks, profitability across three power scenarios, pool variance, and the risks worth knowing.
Read MoreSell Your Used ASIC Miner in South Africa
How to sell a used ASIC miner in South Africa, including current 2026 buyback ranges, condition grading, and what to do before you contact a buyer.
Read MoreImporting ASIC Miners to SA: DIY or Buy Local?
A practical SA decision guide on whether to import ASIC miners yourself or buy locally, with landed cost calculations and supplier verification basics.
Read MoreCrypto Mining Profitability in South Africa
Most crypto mining profitability calculators were built for Texas or Quebec, not Bedfordview or Stellenbosch. Drop the same S21+ specs into a US calculator and your local reality will be off by 30 to 60 percent within six months. This guide walks through what an honest SA mining profitability calculation actually needs, the five inputs…
Read MoreAntminer S21 vs S19 Pro in South Africa
The Antminer S21 versus S19 Pro question gets asked at our Bedfordview office almost weekly. In 2026 the honest answer is more nuanced than it was 18 months ago, because the actual SA stock has shifted to the S21+ 235Th and the S19K Pro 120Th, with used S19 units holding the budget end at around…
Read MoreBuying a Bitcoin Miner in SA: 2026 Guide
Buying a Bitcoin miner in South Africa in 2026 is a different conversation to what it was three years ago. Local pricing has dropped sharply, the hardware mix has shifted, and Eskom tariffs are the variable that decides whether you’re running a profit machine or a slow-bleed hobby. By the end of this guide you’ll…
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