Inconvenience is a very poor guess. Energy restriction kills people.
Energy production levels must increase profoundly, while costs must fall. This is already happening, and not even that slowly in the grand scheme of things. Personal energy generation and storage is already cheaper than the grid as long as you can finance the upfront investment at a reasonable rate.
I’ll say it until I’m, err, green in the face. Make clean energy cheaper and more abundant and it will be used. Make climate friendly products more compelling and cheaper than their dirtier substitutes, and the better products will win on the open market.
Climate austerity is not so much “saving the future” but rather “murdering the poor” and I find it morally indefensible.