I wonder how would the results vary if for every MW of renewables there was 100kWh of storage (using flywheels, lipo, thermal rock, gravity, etc...). I really believe a future with 100% renewables is very, very close. Will happen in the 2030s.
That doesn’t seem like enough for a 100% renewables grid to be 3 9’s reliable.
Demonstrably pricing already technically works in many hourly priced markets in face of difficult conditions - the swings are not that fast and the time quantum can technically be made much smaller still, there is no fundamental signal propagation speed bottleneck in sight.
Quotas yield cutoffs only if you exceed your quota, so you would still get power constantly for light loads unless you err by blowing your quota. This is far better than getting blackouts.
It's already working in the UK - power company sends a message saying between 2am-4am power will be free.