[marcosdumay]

You would need supercapacitors, but you can make an inverter emulate inertia almost as well as flywheels, and more than well enough to not make a difference once you push the energy into a few kilometers of non-zero impedance grid.

[daedrdev]

supercapacitors are quite difficult because they can explode

[marcosdumay]

I have some news about flywheels...