Tracker wrote:[ What does it matter, IF they made no profit on something they did not generate, and only supplemented the house-next-door..!
The flaw in the electricity industry business model is that it recovers fixed costs largely through a hidden surcharge on consumption, thus requiring consumption to remain at a certain level in order to recover those costs.
The solution is to separate out the fixed versus variable costs, thus removing all subsidies between consumers with varying consumption levels. This was tried in Tasmania circa 1994 - 95 but was a political disaster at the time and will not likely be tried again.
Once it was abandoned, the industry dropped the "use wisely" mantra in favour of literally using the slogan "Use our Energy" in a blatant attempt to drive consumption as high as possible in order to recover fixed costs via consumption whilst maintaining low unit rates so as to avoid the "snowball effect" of declining consumption = higher rates = more declines = even higher rates which is now being faced by some suppliers where solar has become widespread. Left unchecked, that inevitably ends as a spiral into bankruptcy.
Even Australian Standards wiring regulations (AS3000) were routinely ignored at the time if doing so was a means of pushing up a customer's electricity consumption, generally via the installation of electric space heating. There's plenty of homes where 7kW space heaters were added even though that could overload the consumers mains coming in from the street. The rationale was simply that if it really did overload, the service fuse would blow and that the electricity supplier would have to come out and change it, most likely on a Winter evening. But the cost of replacing a few fuses was minor compared to the prospect of selling vastly more electricity and recovering fixed costs that way.
The other states all did the same thing, albeit in a milder form. That's why the utilities historically encouraged consumers to use more electricity. Anyone over a certain age will remember the ads no doubt. If it had a plug attached and made the meter turn then "your local electricity people" were on a mission to convince you that you needed to not just buy one, but use it as much as you could as well. If consumption didn't go up then the utilities faced financial trouble, if it went down then they'd actually go broke. Hence the advertising.
The issue will come back in a big way if solar PV becomes truly mainstream, at which point all states will basically end up with no choice other than to introduce a "Network Charge" (as it was known) or similar at a fixed, flat rate. In very rough terms, expect to pay $200 a quarter without turning anything on at today's likely rates plus a unit rate that is perhaps 10 - 15c a kWh or somewhere in that order. The actual rate was about $100 per quarter back in the mid-90's with a 6.6c unit rate (even lower for heating or off-peak) and I'm just roughly scaling up from there.
The issue was hotly debated in Tas at the time and there are countless reports, submissions and the like relating to it. The charge is legit in that the costs are real, but it became pretty clear that those who benefit from recovery via a consumption charge (mostly shacks, single people at work all day etc) are a big enough group to be of political significance.
I have solar PV (2.88 KW) on my house but I'm well aware that there's a lot of economic issues here and that it's not at all straightforward in an environment where energy flows in two directions and the supplier has no certainty that the consumer will have a reasonable level of consumption.