How do you plan to connect the price of bitcoin with the energy consumption or sustainability?

Price is determined by the supply and demand for bitcoin. The supply is pinched due to people valuing their stashes as an appreciating asset which also pays off bills. Whether energy consumption makes a difference to that? Guess, no.

The hash rate will always find equilibrium due to older hardware going offline and newer, more energy efficient hardware coming online. Till such time that the coinbase reward is too small to justify mining. In an ideal world, the fees on-chain would be sufficient for mining to stay profitable. But the world isn't ideal and we are already seeing that custodial bitcoin solutions are coming up with corporations increasing the number of bitcoin they can safely claim to hold. When enough wall-street type institutions have them, they can easily give people "representative tokens" against the bitcoin in their custody.

Banks and financial institutions are already engulfing bitcoin as another of their "product offerings".