Bitcoin transactions use so much energy that the electricity used for a single trade could power a home for almost a whole month, according to a paper from Dutch bank ING.
Bitcoin trades use a lot of electricity as a means to make verifying trades expensive, therefore making fraudulent transactions costly and deterring those who would seek to misuse the currency.
"By making sure that verifying transactions is a costly business, the integrity of the network can be preserved as long as benevolent nodes control a majority of computing power," wrote ING senior economist Teunis Brosens.
"Together, they will dominate the verification (mining) process. To make the verification (mining) costly, the verification algorithm requires a lot of processing power and thus electricity."
Comparing the amount of energy used for a bitcoin transaction to running his home in the Netherlands, Brosens says: "This number needs some context. 200kWh is enough to run over 200 washing cycles. In fact, it's enough to run my entire home over four weeks, which consumes about 45 kWh per week costing €39 of electricity (at current Dutch consumer prices)."
Not only does Bitcoin use a vast amount of electricity to complete transactions, it uses an almost exponentially larger amount than more traditional forms of electronic payment.
"Bitcoin's energy costs stand in stark contrast to payment systems that have the luxury of working with trusted counterparties. E.g. Visa takes about 0.01kWh (10Wh) per transaction which is 20000 times less energy," Brosens notes, pointing to the chart below:
Article source: World Economic Forum
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