Yeah I mentioned it in my other comment, spinning flywheel generator with a motor on one side and generator on the other would work well here too filter out any

Yeah I mentioned it in my other comment, spinning flywheel generator with a motor on one side and generator on the other would work well here too filter out any noise. Some datacenters have these attached to their generators to avoid the need for huge battery banks. They can actually support several megawatts. They spin constantly at the motor's rpm with a clutch that engaged when the input power is lost. This instantly jump starts the generator, at the grid's phase, and prevents