When it says transaction, is it referring to one person sending bitcoins to another person, or something else? Is that much energy really required confirm just one transaction?
I'm also wondering whether the energy requirement depends on the amount of bitcoins being sent as well.
I suspect she is talking a load of spherical objects, and doesn't understand Bitcoin. It's probably the amount ofpower required to generate a block. Also, it may include the power used in maintaining the Bitcoin nodes - I've got a node running whilst I post this, so what percentage can be attributed to the node?
I bet more energy is used by Twitter and its followers, and then there is YouTube, and the rubbish that is downloaded there.
The article is based on this one:
https://digiconomist.net/bitcoin-energy-consumptionNow to be honest, when you compare bitcoin with Visa, did you compare also the number of users each one has?
The main flaw in that article is that the cost per transaction is power consumption /tx per day.
If we would add segwit tx into the picture the price will go down.
If we add the LN , nobody would be able to calculate the energy spent for a tx.