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It just means we need batteries.
Or make electricity cheaper during "belly" hours.
It always seemed to me that since prime AC use occurs right after prime solar radiation hours, that running one's AC off of solar+batteries would be a good solution.
Satoshi_Nakamoto saysOr make electricity cheaper during "belly" hours.
PG&E's new TOU plans have peak rates from 4pm-9pm.
Solar power is not the panacea it appears to be
TEN years ago researchers in California began forecasting the state’s demand for electricity over the course of a day. The distinctive undulations in the data gave it a shape that caused it to be nicknamed the “duck curve”. The figures suggested that the power grid was due to face unprecedented strain. As more solar power was generated during the sunny middle of the day, the net load on the network decreased, creating the duck’s belly. As a result, that meant that the ramp-up to peak demand in the evening—the duck’s neck and beak—would be unusually steep, putting enormous pressure on a grid that was not designed for such variation.
https://www.economist.com/blogs/graphicdetail/2018/03/daily-chart-18