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This seems unbelievable:

This averages out to a shocking 215 kilowatt-hours (KWh) [sic] of juice used by miners for each Bitcoin transaction (there are currently about 300,000 transactions per day).

Source: One Bitcoin Transaction Now Uses as Much Energy as Your House in a Week

215 kWh is an enormous amount of energy.

Even if mining bitcoins uses a lot of processor power, 215 kWh is still enormous.

Are they confusing all transactions with just mining?

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