You mean, to be more specific, that all power is nuclear fusion power. Actually, yes. When fusion reactors are available they'll cut out the middleman again --

You mean, to be more specific, that all power is nuclear fusion power. Actually, yes. When fusion reactors are available they'll cut out the middleman again -- and this middleman will be solar. But to be fair, the sun will remain the largest fusion reactor humans can access for quite some time so solar may continue to be relevant while we are close to it.