What do you mean by long stretches? Are you talking about sundown to sunset?
In many (most?) areas, wind picks up at night, wind can't really be "local", and demand is lower at night time so that's a great use for the grid.
Also, batteries are getting so cheap that people are putting multiple days' worth of storage on wheels, driving them around, and parking them at home during the evening peak and overnight.
When they are that cheap, adding 10-20 kWh of local storage is going to pay for itself in no time.
When my neighbor is overproducing solar during the day, that means that he's sending his power over to my house, which doesn't have solar. Which means that my neighborhood is pulling down less peak power. And the grid is sized for peak power, not for minimal power, so whenever that peak is lowered, it saves me money but costs the utility profits.
Because the utility gets to recoup a fixed profit rate off of any amount of grid they are allowed by the PUC to install, whether it was needed or not. My neighbor, with the solar, also pays lots of fees for the privilege of sending me power and requiring less grid.
This effect of shaving the peak is so extreme that solar causes the California duck curve. Though the storage that's been added in just the past two years has pretty much solved any problems needed for the evening ramp as the sun goes down, now.
It's only the highest peak that matters. During periods of Dunkelflaute[1], batteries will run dry and the grid will need to support everyone.
[1] https://en.wikipedia.org/wiki/Dunkelflaute
Seems like a great time and place for the iron air batteries that are getting deployed now (Form Energy). Even in the US, without Dunkelflaute, these 100:1 energy:power batteries are economical and paying for themselves on the grid. If there are several of these occasions per year it could be a great fit.
It also seems likely that HVDC from sunnier areas like Spain or maybe even Morocco could be cheap enough. I'd recommend nuclear but EDF is having such great difficulty building it. HVDC and other exotic solutions like enhanced geothermal seem for more practical at the moment.
Do you ever actually converse with people or do you just DDoS them with random information. I made one simple point and you have not addressed it.
HVDC, long-duration batteries, and enhanced geothermal directly address your concern. And if they do not, you have not bothered to express your concern clearly.
You’ve shifted to promoting renewables. That wasn’t the point. The point was cost-shift: rooftop customers still use the grid but avoid paying for fixed T&D. Address that.