Well let's hear it then. What is the mix? How many GWh of each storage type are we going to use? Typically plans for renewables + storage assumes some magical silver bullet like hydrogen or thermal storage that will make storage nearly free. Except neither of those have actually seen commercial deployment so they're no telling if they'll actually pan out.
You haven't actually given a plan to provision this much storage - or even specified how much storage we'll need for that matter - so yeah I'm still very comfortable in claiming it is not possible. At least not without some massive breakthrough in storage technology, which doesn't yet exist.