You don’t “overload” power lines by not consuming the available power.
Yup:
California produced so much solar power on those days that it paid Arizona to take excess electricity its residents werent using to avoid overloading its own power lines.
So instead of writing a check, why didn’t they just disconnect the solar panels for a few hours? Reporters are worthless.
You may if you are having to use those lines to ship excess power longer distances than usual.
Speaking for AZ, we'll take the power if you must give it away, but there is something lob-sided in CA if it comes to that...