"Howard" wrote in message

1-In most NA electrical systems the energy used for street lights
comes from a hydro, coal or nuclear unit. Rarely do we need to run an
oil fired unit to cover early AM load. Sorry we can't stop buying Mid
East oil for that use.

OK maybe not oil, but we could burn less coal. There is still cost
associated with the lighting and if it is not needed, someone, someplace,
has to save money, pollute less or otherwise come out ahead.