Modelling payback without fooling yourself
Every ROI calculator online is optimistic by construction. How to build one that is not — the variables that move, the ones people forget, and what a defensible model looks like.
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What we end up explaining on the phone, written down. No price predictions, no payback promises — just the parts of this business that cost money to learn the hard way.
Commissioning a first rack: the week nobody plans for
The pallet has arrived. What to do in the first hours, the first day and the first week — from unpacking checks to burn-in, pool configuration and the baselines you will want six months from now.
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75 dB is louder than you think — siting a rack you can live with
Noise is the constraint that quietly decides where a deployment can go. What the decibel figure means in practice, how distance and enclosure help, and the regulations that end projects.
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Warranty chains: what you are actually buying with the machine
A twelve-month warranty is only worth the chain of custody behind it. How manufacturer warranties really work in this industry, what breaks them, and the questions that separate a supplier from a forwarder.
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Two coins, one machine: how merged mining actually works
Scrypt hardware pays in Litecoin and Dogecoin simultaneously. Not by switching, not by splitting hashrate — by a mechanism worth understanding before you buy into it.
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DAP, DDP and the customs bill nobody budgeted for
Incoterms decide who pays duty, who clears customs and who is standing at the warehouse when something goes wrong. A practical guide to the freight terms on your proforma.
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Power planning: why 3.5 kW is never 3.5 kW
Breakers, phases, inrush and derating. The electrical homework that decides how many miners a site can actually hold — and the mistakes that trip a rack on its first hot afternoon.
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Hydro miners: what the loop actually costs you
Liquid-cooled units offer the best efficiency on the market and the most infrastructure you have ever had to build. A plain account of what sits between a hydro machine and a working rack.
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J/TH, explained properly: the number that decides everything
Efficiency is the one specification that keeps mattering after the purchase. What joules per terahash actually measures, how to convert it into a monthly bill, and why the most efficient machine is not always the right buy.
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Why one miner is sold as "202–226 TH/s"
Hashrate bins are not a typo or a hedge. Here is how chip binning works, what it means for the unit that arrives on your pallet, and what to insist on before you wire money.
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