Yes but it doesn't actually exist yet so anyone saying "just use batteries" is basically either a bit naive or a journalist.
2024: https://www.indexbox.io/blog/australias-battery-storage-flee...
https://www.energy.ca.gov/news/2025-11/californias-battery-s...
https://insideclimatenews.org/news/10022025/solar-battery-st...
Note how massive home battery deployment drove all of Australia’s wholesale power price down by half: