Hum, I think not, you are talking about math, like "hey, you p.v. produce 130% of your yearly consumption!!!" vs "yes, sure, but self-consumption is only 50% because at night I need energy and I miss it, while in the sunny day I have much more than my average needs".

Or to be less vague: I understand you think a country can run with hydro storage, I think definitely not for most countries: yes we can regulate our network frequency with pumped storage, when energy demand goes down (for instance also because p.v. and eolic produce much) we pump water in altitude and we release it when demand grow. It's nice and it does work very well: ONLY if our storage in altitude suffice for FAR more than our normal needs. Enough more to have water during a drought period + high energy demand, enough to survive days etc.

If you live nearby a waterfall or a quick/big enough river you might get 99% of your needs out of it to power your home. But at a nation scale is much more complicated and 99% would be still not enough...