I assume you never tried measuring the output of a solar panel when it's cloudy. It's 10-15% of a sunny day. Closer to not working than working.
On a rainy day that drops closer to 20%.
As an aside - cloudy days avoid a problem I have with shade. In winter, at 3:30pm, the sun goes behind a tree and my production plummets to near zero. If there's cloud cover the sunlight is far more dispersed and there's no "shade".
And you’re still able to power your entire home? What if the rain lasts for a few days, which is pretty common in many places.
I did have one rainy day back in the middle of Winter that was 16% but that will end up being literally the worst day of the year.
Our energy grid can't currently handle the ability to charge electric haulers locally at any scale let alone to move an entire city's worth of energy, so the solution is not to 85x the national electric grid all at once.
But to give them due credit, they believed in this vision and put in the hard work to make sure it became true.
That's literally CCP state controlled communism !! More specifically, that's what the The Gansu–Zhejiang UHVDC project has as an overhead transmission line length (2,370 km in international units).
* https://www.sciencedirect.com/science/article/pii/S014206152...
* https://www.bbc.com/future/article/20241113-will-chinas-ultr...