Are you saying the source that you posted isn't reputable? Because that's the majority of what I've been quoting, along with a few bits and pieces from Wikipedia.
Again, for those that miss it, I've said repeatedly that Energy generation represents a natural monopoly and without the ability to switch providers (which includes everything from Energy Generation, substations, cabling and the last mile) - you can't really have 'true' competition.
The point I'm making is that there are 3 factors that show a far greater impact on the price than 'evil corporate shareholders'
They are:
1: since about the 80s, the number of electronic devices in the average home has increased dramatically - I don't have the NZ stats for this, but there are stats from the US, UK etc. from this time period if you really doubt it - but all you have to do is do a thought experiment - my Grandparents had a TV, a Radio, Lights, a Fridge and that's it. They had a Gas stove/oven and a coal fire.
Today, I've got a TV, I've got multiple laptops, Phones, Tablets, a Gaming PC, Vacuum, Power tools, Fridge, separate freezer (going up the ruahines for my first hunt in April!) etc. etc.
I will add this though, since about the late 2010s, the average has started to level off a little - as devices get more efficient.
2: Electricity generation has moved from almost exclusively hyrdo (which doesn't have a fuel cost) in the 70s, to a combination of Hydro and Gas being the most prominent and a switch to (starting in the 2000s) renewables.
When we see big Hyrdo plants come online (such as the Clutha damn - 400+ MW) in 1993, we see a dip in the consumer price of Electricity. Simple economics - we've increased the Supply (shifted the supply curve to the right), therefore we have decreased the price if the demand curve remains the same.
Since the Clutha Damn, we've not built any Hydro power stations of any great significance (over 10 MW)
3: Immigration - Population increases at a rate greater than natural Births, that's more people who will want Electricity = greater demand. I'm firmly in this category, I came here - I plugged in all my devices etc. More load on the system that wasn't there the day before I landed.
Add in a pinch of 'What has greater levels of bureaucracy - the Government or a private company?' - and that is all I'm saying.
I am not advocating for Privatization or Nationalization in this instance.
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