Goodness all these regulations are killing us. Can we not get this country business minded and not regulated to death!
In other words… nothing bad happens if you break the rule. It’s not as if the metro police shows up, or they send you a big fine or something. They just don’t pay you for whatever you gave them. By law they cannot. And since you pay them more than they pay you (per unit), and there is a basic service fee involved, you will never end up paying nothing for your electricity. You will always be paying something… which is fair enough too. If you want the luxury of a grid connection (even just to fall back on), you better pay for it
Still doesn’t make sense saying they wont pay you anything, cause they already paid (credited) you every month for your export.
If you export i.e. 300kWh per month and import 50kWh / month then every month you got a 300kWh credit at R1 (for easy math) = R3600 over the year. What will happen after 12 months as you imported 600kWh and exported 3600kWh do they bill you 3000kWh at R2.4 (actual rate of import) or R1 (just what they credited you nett) the latter makes more sense.
probably R3000 of the R3600 in credit allowed will fall away.
The 600kWh you imported at R2.40 will be offset against 600kWh you exported (at R1 or whatever that rate is now). You will then pay R1.40 for the 600kWh, or about R900. The other 3000kWh you get nothing for. And you also pay the R200/month (approximately) connection fee.
Edit: This will probably also be done on a month to month basis, so they will probably withhold payment on any particular month on excess amounts you fed in. That would by my guess. There will never be a month where they give you money, they will only offset future months based on what you may have fed in in previous months.
Edit 2: Another way of thinking about it. It is a bit like “store credit”. You can only spend it at that store. It expires if you don’t spend it by year end.
It’s usually easier to reason about this stuff in the “steady-state”, i.e. at month 13+.
They could conceivably look back at the rolling 12-month period to determine if you’re above or below zero. From an accounting perspective, this makes the most sense. It’s dangerous for them to allow you to go far negative in the hopes that you fix it before the 12-month mark, because you might not.
The easiest thing for them to do will be to throw away your credit every month, but that wouldn’t be fair. So it feels like a rolling 12-month window would balance well in the steady state. For initial conditions, i.e. month 1 - 11, they’d just clamp the window to your actual time.
If they’re feeling nasty they could just say you didn’t keep your end of the bargain, so they re-bill your consumption at the standard rate, giving nothing back for the feed-in, and slap you with the bill. Which would be correct, since you didn’t keep to the conditions of the concessional pricing contract. But that’s quite nasty, even for CoCT.
Can someone that’s done this explain what actually happens?
The big problem is that before you worry about feed in and credits, you have to pay CoCT approximately R11k for the bidirectional meter
Hmm, that quite neatly solves the initial 1-12m period… You’re already so deep in the hole, the math works! (For them )