Bitcoin was created in 2009 as a new way of paying for things that would not be subject to central banks or government oversight. While it has yet to widely catch on as a method of payment, it has seen its popularity as a speculative investment surge despite volatility that can cause its price to swing wildly. In March 2020, one bitcoin was worth just over $5,000. That surged to a record of more than $67,000 in November 2021 before falling to just over $35,000 in January.
When bitcoin was first invented it was possible to solve the puzzles using a regular home computer, but the technology was designed so problems become harder to solve as more miners work on them. Those mining today use specialized machines that have no monitors and look more like a high-tech fan than a traditional computer. The amount of energy used by computers to solve the puzzles grows as more computers join the effort and puzzles are made more difficult.
The Cambridge Bitcoin Electricity Consumption Index estimates bitcoin mining used about 109 terrawatt hours of electricity over the past year — close to the amount used in Virginia in 2020, according to the U.S. Energy Information Center. The current usage rate would work out to 143 TWh over a full year, or about the amount used by Ohio or New York state in 2020.A key moment in the debate over bitcoin’s energy use came last spring, when just weeks after Tesla Motors said it was buying $1.
“Repowering or expanding coal and gas plants to make fake money in the middle of a climate crisis is literally insane,” Yvonne Taylor, vice president of Seneca Lake Guardians, said in a statement.
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