Ideally you build an international power grid. Solar in the Sahara powers Europe but then you loop it around the world and we have 24 hour power from Australia and the Atacama, tied into hydro, nuclear and wind.

Put it in your battery anode and you can charge your car in a few seconds.

Computers won't need cooling and can be way smaller. Quantum computing becomes more practical. AGI is more likely.

Huge implications for Fusion, which then means we can start pulling CO2 from the air since we'll have more power than we need...

'good news' doesn't begin to cover it :)