Energy consumption from mining is at its highest since 2018. Here's the proof.
What you need to know
American blockchain entrepreneur Rhett Creighton estimated that over $4 billion is being spent on Bitcoin mining each year. How did Creighton work this out? He estimated that Bitcoin mining uses 55 terawatt-hours (TWh) of energy per year and costs 7.5 cents per hour. He multiplied those two numbers together, and out popped the tweet-worthy figure of $4.125 billion.
If Creighton’s right, that amounts to a hefty sum, indicative of an even larger environmental cost. Bitcoin’s incredibly inefficient; all that computing power spent solving those complex puzzles is lost, and the money goes directly into the hands of energy companies. It’s a non-refundable investment, given that the world predominantly relies on fossil fuels, and the harsh price to pay for Bitcoin’s latest bull run.
Why it's important
It turns out that Creighton’s calculation was wrong—but not by much. Working out the financial and environmental cost of bitcoin mining is far more complex than a calculation that fits into a single tweet.
According to the Bitcoin Energy Consumption Index, the pet project of Alex de Vries, blockchain specialist at PwC, annualized global mining costs $3.66 billion, with a revenue of $7 billion. A neat and tidy profit to bitcoin miners riding high on Bitcoin’s soaring price—but a hefty cost to the environment.
|