New Zealand's capital city is Wellington, a charming place but it is known to be quite a windy city, like Chicago. Australians just love saying windy Wellington with a fake NZ accent but not quite as much as they like saying six in an NZ accent.
As did most decently sized Antipodean towns, Wellington had trams and as most decent sized Antipodean towns, they got rid of them. Melbourne is really the only Antipodean town that kept them, and aren't we laughing now. Adelaide did keep one tram line.
Instead of replacing the electric trams with diesel buses, Wellington replaced their trams with electric trolley buses. New Zealand is not known as an oil producing nation, and so has to import its oil products at a high cost for cars, trucks, buses.
So isn't Wellington laughing now, with its electric trolley bus system, being powered by electricity mostly generated by renewable energy.
Well no, actually. There are plans to shut down the electric trolley bus system in Wellington. Back to the 1950s where the influence of oil companies saw the shut down of electric trams all over the world, especially in Western countries.
Perhaps the system is old and decrepit? Well, not by the look of the vehicles.
Some brief and not too heavy reading here.