In my market, we're already at fractions of renewable where prices go negative > 20% of daylight hours (doubled in last year), and still produce lots of CO2 in

In my market, we're already at fractions of renewable where prices go negative > 20% of daylight hours (doubled in last year), and still produce lots of CO2 in late afternoon. I think the time to start worrying seriously about storage is now or in the past.