- 28 Nov 2017
Indeed.… and then there's Japan where the frequency differs between east and west!
https://en.wikipedia.org/wiki/Energy_in_Japan#National_grid “Unlike most other industrial countries, Japan doesn't have a single national grid but instead has separate eastern and western grids. The standard voltage at power outlets is 100 V, but the grids operate at different frequencies: 50 Hz in Eastern Japan and 60 Hz in Western Japan.”
Also, as I just learned from the same wikipedia page, 10 regional regulated companies provide electricity to the market in Japan, not a single national operator.
And the way the railways were privatised in Japan in 1987 probably offer the best model for the future in the UK. Sadly, we ignored it.