hydrogen storage is literally dirt cheap. no compression required. https://ethz.ch/en/news-and-events/eth-news/news/2024/08/iron-as-an-inexpensive-storage-medium-for-hydrogen.html
https://www.tue.nl/en/research/institutes/eindhoven-institute-for-renewable-energy-systems/iron-power
soviets killed(in one way or another) 61 million of their own citizens between 1917 and 1987. WW2 victims excluded. current russian putin government officials said it was "only" 22 million. https://www.hawaii.edu/powerkills/USSR.TAB1.1.GIF