That's something of a stretch.
State Grid Corp of China bought a 41% stake in South Australia's transmission network owner ElectraNet. See:
That's something of a stretch.
State Grid Corp of China bought a 41% stake in South Australia's transmission network owner ElectraNet. See:
The 200 year lease was mentioned as it is unusually long and there was some misrepresentation over the length of the lease to people who voted for it and the public.
The question of sovereign interests is real. The original nationalisation in the 50s or 60s was I think due to issues the state government had with the British owners interests not aligning with the state's ambitions. But at the time of sale tensions with China were not the same and the problem was that it was a terrible deal for the state that led to a subsequent explosion in power prices.
So no, they did not "sell the grid" to China.
[1] https://www.cki.com.hk/english/ourBusiness/home/inv_au.htm