In Portugal and Spain we have pumping stations doing exactly that.
I couldn't find a link in English but maybe you'll find this useful: https://www.iberdrola.com/sustentabilidade/central-hidreletr...
Current water levels are at approx 47% capacity [1], compared to around 64% same time last year. Unless we get a wet spring and summer it could get exciting come next year...
[1] - https://www.nve.no/energi/analyser-og-statistikk/magasinstat...