Storm related blackouts are due to downed power lines largely in the last mile of delivery, not a shortage of available electricity. A battery installation in your neighborhood won't help when the lines in your neighborhood are down.
That said, Texas's low barrier to entry has enabled more small scale solar PV and battery installations I think than any other state, and they're rapidly building them out.
If water had no polarity, life as we know it could not exist, so the mess in your apt would be the least of your troubles