Hello. I'm referring to the electricity companies changing the prices on consumers all the time.
With an off grid system you dont need to worry about any of that.
A long time ago, you just paid for electricity in cents/kwh.
All the other costs were absorbed within the pricing.
Since privatisation, you have, for example, a private company responsible for the power lines which run to the different places.
These cost pretty much the same to maintain whether people use 20kwh per day or 50.
That's one of the places we get fixed costs from.
That company also got held responsible for the Marysville fires, and had to pay a significant amount to victims.
What has been the flow on from that?
Then you have individual electricity generators.
Apart from actual "fuel" ( Coal / Gas etc ) a lot of their costs will be fixed.
As we add more renewables to the grid , and we use less of these power sources, they need to up their spot prices to cover their fixed costs.
Unless there is a ( cheap ) storage solution adding renewables will make electricity more expensive.