Which would fry the Texas electrical distribution grid as it now exists.
Which would fry the California electrical distribution grid as it now exists.
An interesting option can be found in
in fact, a sort of similar way, the Sumas Substation
on the BCER "stored" electrical energy because of the massive flywheels attached to its generators. The whole system was fed electricity at a constant rate from the Stave Falls dam and also from the electric trolley cars when they were using "regenerative braking". The power fed to the substation was NOT sufficient for peak operation, but the flywheel generated electricity made up for the deficit (as well as revving up the flywheel when the power demand for the trolley cars was lower than the electricity delivered from the dam.
BTW, the former substation is now a private residence and has been "slightly" renovated.