See, the USA is polluting the world by burning old-fashioned coal. Most of the smoke comes here to Canada (cough, cough). China also burns coal.
In Canada the electricity is cleanly produced by waterfalls (Niagara Falls), nuclear and windmills. We sell our unused electricity to USA. We dismantled the old coal generating stations.
Electricity is expensive only in a few countries that add a huge tax to its cost. Also maybe their cost of living and pay is very low.
Here in Canada electricity is reliable and cheap.
A few years ago they changed all the traffic lights to efficient LEDs.
This year they changed all the street lights to efficient LEDs.