Energy use - A single Bitcoin transaction is around $8 today. Depends on how quickly you need that transaction to hit the blockchain. Anything over 30 minutes

Energy use - A single Bitcoin transaction is around $8 today. Depends on how quickly you need that transaction to hit the blockchain. Anything over 30 minutes is currently 1 sat/vByte and 1 sat = $0.00019230 dollars. The average bitcoin transaction is about 250 bytes. That's $0.048075 or almost 5 cents.