[MargaretR]

I hear that some councils are turning off street lighting for a few hours during the night.
I know that street lighting is light sensor controlled so the cost of implementing a timer system may reduce or eliminate any potential savings.

I have doubts whether some areas would find it desirable due the potential for a crime increase, but it would be nice to see a starry sky again.

PS - I was only a child so was in bed during the wartime 'blackouts'. Maybe older members can recall their experience of it.