[chpill]

> The real question is whether fusion will ever be economically competitive with renewables+storage.

Could you elaborate on what storage you have in mind? The only effective way we have to store large amounts of electricity right now is [pumped-storage hydroelectricity](https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricit...), which is interesting but also very sensitive to the geography.

[cygx]

There are some technologies that might be improved to achieve the required efficiency (eg power-to-gas[1] or cryogenic storage).

[1] https://www.kit.edu/kit/english/pi_2018_009_power-to-gas-wit...

[adrianN]

I'm by no means an expert, but as far as I know a combination of batteries for fluctuations in the dozens-of-hours range and Power-to-{Methane,Hydrogen,Ammonia} for seasonal variations is what experts think feasible.

[nicoburns]

Fusion also isn't possible right now of course.