The BIGGEST problem with clean energy

wait so the big creek system is essentially a giant sisyphus machine to waste energy when the sun is producing the peak amount of power? i say sisyphus because there are losses in the pumps just as the previous video says there are losses of power in transportation and storage of battery vs fuel cell and a lake/dam can only hold so much water which might vary depending on dry vs wet season. too many variables in my mind so we just have a machine that wastes energy cause we produce too much and cant store it properly. this was a machine engineered circa 1920 that still works and is expandable yet our energy production and consumtion, not to mention climate change, is still extremely variant to a point where instead of this being a giant battery it's a giant sisyphus machine. why is everything so much more disappointing than i imagined when i was younger.

also you talked about "other mechanical storage" but you didnt explain flywheel storage which is probably the simplest and easiest to build. tesla does have some already built though and this video is sponserd by toyota so i guess cant talk about competitors unless you're slandering them.

also also the series talks a lot about hydrogen as being abundant but what about oxygen? my main concern for this topic is are we creating cars that consume more oxygen than humans consume? and does the production of hydrogen with oxygen counter that effect. i am aware the method of production for liquid oxygen is protected by the FCC because of an episode of mythbusters and it is a component of rocket fuel. still a comparison of hydrogen and oxygen produced vs consumed in a car and the same in a human would be nice. bonus if it produces more oxygen than consumed.