If it's anything like the battery in Australia, it will both save customers money, and make a boatload of money.

For smaller-ish batteries, a good chunk of what they do is in the FCAS market. Very important, and not many people know it exists. Time-shifting and/or price arbitrage is another function.

https://news.slashdot.org/story/18/...-reduced-grid-service-cost-by-90-percent
https://reneweconomy.com.au/tesla-b...elivers-stunning-windfall-profits-77644/