When there is an excess of solar energy during the day, it can be stored in batteries for use in the evening when the sun goes down. Financial Times, in a chart forward piece, describes how this applies at scale, using California as a prime example.
Here in California it’s become more common to have home batteries than not in some places. During really hot days, you can send energy to the grid and receive reimbursements, which is nice. But the main selling point for me is when there is an outage. The battery kicks in and you don’t even notice.
I’m a fan. Of the battery approach and the hatching in the FT charts.