Major roads are owned by vic roads (in Victoria), and suburban streets are owned by councils. The electricity networks own the infrastructure (poles and wires and lights) but users (council or vic roads) pay for the electricity.
So the councils are effectively changing the lights on behalf of the electricity networks (the money is split with federal govt in the case of my council) but they get the benefits of lowered electricity bills in the long run.
The new LED units also don't have heavy metals (mercury) so are easier to dispose of later.
hope that helps.
Bo
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