Only if you assume the demand stays constant, but it doesn't; Demand is usually the highest when PV output is also the highest, the middle of the day when everybody is at work, using all kinds of electricity drawing machines.
In California, demand peaks are around 6-8pm, well past the peak of solar production. This disparity has a name, the "Duck Curve". You can view the near real-time power demand on the CAISO[1] website. Your region may have a similar way to see live demand.
Not quite, the mismatch in timing between solar generation and energy demand has been called the "duck curve" [1][2]. Peak demand is normally in the evening when people are done with work [3].
[1] https://www.energy.gov/eere/articles/confronting-duck-curve-...
For contrast, here are the stats for Germany [1] and the consumption peaks during the day contrast very well with the night consumption.
[0] https://en.wikipedia.org/wiki/TV_pickup
[1] https://www.agora-energiewende.de/en/service/recent-electric...
Especially if these plants produced a lot of pollution that was also not accounted for.