The BIGGEST problem with clean energy

Wait when the duck curve comes you only talk about the energy produced by solar and the drop in the middle of the day but over the night the consumption goes down aswell and since electricity is on demand there is a huge amount of energy unused you could safe that up in batteries or produce products like hydrogen for the car industry since hydrogen would be better for the environment than e-cars thats at least what i believe pump storage plants could safe up energy too when you use the electricity in the night to get water pumped back up you can just reverse the turbines and produce the energy when you need it during the day in the morning when you need it that is basics knowledge that all should have learned in the middle school i learned that stuff in the first year of middle school 1999 all this knowledge existed a long time ago and we still do nothing about it its a shame the younger generations will suffer the concequences having a child today you are knowingly willing to accept that he will suffer from natural disasters that will run havoc all over earth the shifting of climate zones and dieing of all kinds of species its so sad it should be our priority number one we should all work on this together as humanity