Mining To Lead Us to an Environmental Disaster. But not Exactly
TechnologyBit News Today2 min read
Economic estimates place the Bitcoin network's current minimum energy use at 2.55 gigawatts, which is nearly as much electricity as Ireland consumes.
He forecasts that by the close of the year, the network could reach 7.7 gigawatts, equalling Austria's power consumption and representing 0.5% of the global total. A single transaction consumes as much electricity as a typical household in the Netherlands uses over a month.
The cryptocurrency produces around 20 megatonnes of carbon dioxide annually, equivalent to approximately one million transatlantic flights.
Should Bitcoin's price continue to rise as some specialists forecast, de Vries anticipates the network could eventually consume 5% of all electricity worldwide. Already, Credit Suisse has estimated that if Bitcoin hits US$50,000, its energy usage would increase tenfold. And if Bitcoin reaches US$1.1 million, Credit Suisse suggests the incentives would shift so much that it could become worthwhile to transfer almost all electricity production in the world to Bitcoin mining.
Economic Incentives and Hardware Push Consumption
Bitcoin requires enormous amounts of electricity because thousands of computers all over the world work to add entries to a shared digital ledger. After ten minutes of work, the computers' efforts are rewarded with 12.5 bitcoins, which is worth over 100,000 dollars at the current exchange rate, plus an additional 2,500 dollars in transaction fees.
De Vries uses production data from Bitmain, the leading maker of mining machines, to estimate when mining expenses will equal the value of mined coins and how costs are divided between hardware and electricity. Credit Suisse notes that the network will channel nearly all bitcoin earned from mining rewards back into electricity, estimating that power makes up 80% of miners' total expenditures.
Estimates of Bitcoin power consumption have been placed between that of Denmark and Bolivia, depending on the assumed efficiency level of these ASIC rigs.
Mining Incentives Fuel Efficiency Gains, Renewable Energy Impetus
Mining machines have grown more energy-efficient, with the latest models executing around 20% more calculations per megawatt-hour.
It is not known how much mining relies on low-carbon energy, though operations in Iceland use geothermal power and facilities in Washington State use hydropower. With solar and wind prices dropping to two cents per kilowatt-hour or lower in certain locations, miners will be steered increasingly toward renewable energy.
Van Valkenburgh highlighted how Moore's Law and competitive economic pressures have pushed technology toward greater efficiency over the past half-century.
Mariya Gabriel, the European Commissioner for Digital Economy and Society, addressed concerns regarding the high energy demands of cryptocurrency mining while explaining how the sector is regulated. She stated that because mining is an economic activity that consumes electricity, it must follow EU regulations on the power sector, energy efficiency, and greenhouse gas emissions.
Regulator scrutiny has already reached the United States, with some American states opting to impose restrictions on Bitcoin mining. She noted that mining operations remain heavily based in China, even as signs emerge that Chinese regulators could crack down on the industry. As of the time of this writing, Bitcoin is sitting at just over 10,000 dollars, nearly half the price it was at one month ago.
