In a couple of large buildings near the Columbia River in Eastern Washington, where hydroelectricity is cheap and plentiful, Dave Carlson oversees what he says is one of the largest Bitcoin mining operations on the planet.
At any given time, Carlson's goal is to account for seven to 10 percent of the entire world's Bitcoin mining as measured by processing or hashing power, he said. At the moment, he's slightly below that target but doesn't expect to remain below it for very long. The operations are fueled by thousands of mining rigs containing more than 1.4 million BitFury mining chips, while Raspberry Pis loaded with custom software direct traffic on each rig.
"We were looking for the lowest cost, highest volume production, tiny computer controller that had the ability to integrate with another electronic board design. There are many out there, but the Raspberry Pi is something like 40 bucks," Carlson told Ars.
Carlson's company, MegaBigPower, does the biggest portion of its mining on behalf of its primary investor, the BioInfoBank Institute in Poland. Carlson takes a cut in bitcoins and rents capacity to other people who want to mine without running their own hardware and software.
"We surface about half of our US mining power as something you can purchase as a leased hash product," he said.
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