The CA ISO graph of "net demand" (System Demand - Wind and Solar) it went negative around 10am.
https://mastodon.sdf.org/system/media_attachments/files/112/356/572/606/553/832/original/891c70d769bfdc03.png
That they have to actually WASTE electricity in the middle of the day. This graph shows the total electric demand minus renewable generation capacity (dark purple), that amount went negative today around 10am, so they have to waste electricity.
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