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.
You are right of course but this is not an argument. I think it's overpriced. I understand if there were ways to solve this problem. But you can easily increase the size of the block and the transaction value will be significantly reduced. As the energy consumption per transaction. What is stopping you? The greed of miners? It turns out that we are all their hostages.