> When solar OVERproduces you have to literally pay someone to consume that energy,

Can't we just throttle the solar panel? In a worst case, you just pull the plug. It's not like a nuclear power plant which needs to be shut down carefully, or am I misunderstanding something?

Yes that's exactly how it works, it's called curtailment.

You can limit amount you feed back into network.

Not sure how is situation with home installations, factory i work for runs 150kw plant for our own consumption and don't bother with selling, but i know that we can set up how much we want/are allowed to feed back.