this is very illuminating. however is it really fair to compare the cost of say the Eth network with Tezos network right now as Eth is currently much bigger , has more nodes , transactions and is more popular?

If we consider NFTs: I rejected minting on Eth based systems because of their energy hog problem. Now Im looking at Tezos based Kalamint and HEN.

The quote 'The Tezos blockchain uses a Proof of Stake (PoS) consensus protocol to verify transactions, requiring an estimated 25 million times less energy than Bitcoin, or 1.5 million times less energy than Ethereum' I find too vague.

Some solid comparative figures for energy usage not just per mint, but also for ongoing energy usage per sale/transfer would be welcomed by myself and others Im sure. and if convincing could significantly boost wider desirability of Tezos network.