Hut 8 Mining, a Canadian firm that deals in bitcoin, has returned to For miners, lowering energy costs is a prime driver of profitability. Hut 8. Bitcoin is going through a rough patch. The value of Bitcoin dropped below $3, over the last week — a long fall from its average value last. Bitcoin mining is all about updating the ledger of Bitcoin transactions. Electricity cost: How many dollars are you paying per kilowatt? You'll.