Not everywhere has sites that are good for pumped-hydro storage, typically requiring an existing hydro electric dam. Compressed air is very inefficient. But t

Not everywhere has sites that are good for pumped-hydro storage, typically requiring an existing hydro electric dam. Compressed air is very inefficient. But the general argument is: we need to consider what is happening now, not what could be possible under some idealised hypothetical scenario. And right now more renewables, without more, or maintaining existing, nuclear means more base-load coal and more load-following gas. The problems aren't really technical, they're political. Politics appears to be ill-equipped to deal with these problems.