In Iceland, Bitcoin Mining Could Suck Up More Energy Than Homes

By Nathaniel Scharping | February 13, 2018 3:04 pm
Reykjavik, in Iceland. (Credit: Boyloso/Shutterstock)

Reykjavik, in Iceland. (Credit: Boyloso/Shutterstock)

Mining bitcoin is not a task for your average Joe. As far back as 2014, researchers estimated that profitable bitcoin mining was out of the reach of commercial hardware. The increasing difficulty of solving the equations that yield the digital currency means that it takes an entire server farm today to make it worth it. And you also might have to move to Iceland.

Hot Water, Cold Air

The tiny island country has become a hotbed of bitcoin activity because it’s got an excess of two of the most crucial requirements for mining: cold air and energy.  To “mine” a bitcoin, computers must solve mathematical equations that get progressively more difficult over time. The solutions to the equations, which are hard to get but easy to verify, ensure the legitimacy of transactions conducted with bitcoin, and miners are rewarded with bitcoins every time they process a transaction. It’s estimated that there are a little more than 4 million bitcoins left to mine, for a total of 21 million. But those last few take the most effort — hence the server farms.

Server farms suck up incredible amounts of energy — an estimated 70 billion kilowatt-hours of electricity went toward U.S. data centers in 2013 — and that costs money. Computers also put out large amounts of heat, and cooling the server farms takes energy as well.

Iceland, though, is naturally cold, and even better, it sits atop a well of geothermal activity. Sixty-five percent of the country’s power comes from geothermal, and the natural abundance keeps energy prices there. The conditions have made the country a mecca for bitcoin mining operations, so many, in fact, that their combined energy draw could soon outpace the amount of power consumed by all of Iceland’s homes.

According to the Associated Press, bitcoin farms are expected to suck up 100 megawatts of power this year, roughly double what they used last year. And it’s got some residents worried.

Icelandic Pirate Party representative Smari McCarthy has proposed taxing bitcoin miners, something the AP reports will likely find acceptance among Icelanders. He later expanded on his views on Twitter, saying that he believes further study is necessary to determine the impact bitcoin farms will have on the country. Chief among them is whether any of the value they create remains in the Icelandic economy, and the increased risk of hacking attacks bitcoin mining brings. Still, he says he believes that Iceland should embrace innovation — including bitcoin.

While McCarthy may by cautiously optimistic, China, another popular location for bitcoin miners, recently went even further. The country says that it will crack down on bitcoin mining because of the onerous energy demands.

CATEGORIZED UNDER: Environment, Technology
  • Uncle Al

    China’s Sunway TaihuLight could end the bitcoin silliness. If not that, then Tianhe-3. Economics is that pale reflection of science that assumes its actions do not alter what it modeled (re the Hunt Bros. and silver; Long-Term Capital Management). Name one economist who grew wealthy from its own private investment.

    • OWilson

      Economists, climateologists and political scientists can in great detail what happened in the past, but can no more tell you about the future than my cat!

      • Uncle Al

        Anybody can curve fit, then being terrifically wrong at the next point. Physics’ past 50 years fail. Where the answers should be completely hides where the answers are.

        Bitcoin assumes a national supercomputer mine would not occur. Bitcoin is soon merely another corrupted central currency.

        • OWilson

          The intrinsic value of a currency is its resistance to manipulation and wild inflation.

          Bitcoin fails, on both counts!

  • Raffaele Del Vecchio

    is bitcoin mining still making some kind of profit?


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