Well, they got a head start in many ways because of their unique geology and geography.

Their geology gave them a lot of hot steam rising to the surface already, so it seemed only logical to tap it, then go looking for more.

Their geology and geography combined means they have a lot of hills and mountains. Their geography means they get a lot of rainfall. Thus, many rivers they can dam up.

And their geography of being a landmass running north-south along the Roaring Forties gives them enormous wind power potential.

Whereas Australia doesn't have the obvious geothermal potential - it's there, but not bursting out of the ground saying "use me!" the way it did for the Kiwis, nor as many rivers, so not as much hydro potential. We've obvious solar potential, but solar got developed later than hydro and geothermal did. So even if each country had jumped on technologies the instant they appeared, we'd still be behind the kiwis.

Which is why we need to make a bigger effort in the rugby.