[lakis]

See also https://www.caiso.com/TodaysOutlook/Pages/supply.html and scroll down to "Batteries trend" and compare today vs a year ago. A year ago, batteries were discharging max 3MW and were drained by 10-11 pm. Yesterday batteries were discarging at max 5.3MW and were fully drained around 11:30. So batteries handled twice as much power for longer period of time.