A picture worth a thousand words – California’s big new batteries
- Aug 12, 2021 4:54 pm GMT
California’s grid batteries make 2021 splash. What a difference a year makes. According to California ISO (CAISO) data compiled by the Hitachi ABB Power Grids’ Velocity Suite research team, utility-scale battery storage systems are performing well in 2021. Just one year ago, in July 2020, the charge and discharge data from the state’s utility-scale batteries was barely a heartbeat. Flash forward to July 2021, and the curve derived from average hourly net energy shows a dramatically different story with most net charging occurring predominately between 7:00 AM and 4:00 PM PST – about the same time solar is ramped up across the market. Net discharging is occurring later, during the evening peak, from around 6:00 PM PST through the remainder of the day.
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