They're not the only ones on that track: https://tsubame-bhb.co.jp/en/ https://tsubame-bhb.co.jp/en/ But I do think the name NitroVolt is a little unfortunate

They're not the only ones on that track: https://tsubame-bhb.co.jp/en/ https://tsubame-bhb.co.jp/en/ But I do think the name NitroVolt is a little unfortunate because there is also a much more speculative (TRL 3) methodology in development which dispenses with fuel altogether to perform the reaction: N2 + 12 OH- >> 2 NO3- + 6 H2O + 10 e- ...effectively producing nitrate directly from nitrogen with electricity. So I clicked expecting to see that, but it's still years to decades away.