- Jun 8, 2008
Very nice OP. I've wanted solar for years but the hoops you have to jump through are apparently a nightmare with COJ/City Power.
Which reminds me, are you seperating your "grid" DB from your solar DB? I read some time ago you had to have the two "grids" separated to stop backfeeding.
P.S what system are you using for energy monitoring at DB level?
I’m not sure what regulations you’re referring too. Would you mind pointing them out to me? The regulations I’ve checked and seen implemented at my neighbors place (Did their solar install in March) - who has a COC are not strenuous or difficult to meet and seem reasonable.
As for the DB power monitoring; it’s a sensor that clips over the main feed coming into the DB and feeds the data to a sonoff device that home assistant and grafana get values from. Then it’s a matter of just representing that data in a nice graph.
All said and done - around 80k including the install
From my understanding of the regulations that they have, you have to have a separate solar DB that runs off your solar system. This would be for things like lights, computers and fridges etc. Then you have to have a Grid DB for heavy loads like oven and geyser. This forces you to size up the solar system as high as possible with batteries so you never have your solar DB off.
I think you can get around this by having a transfer switch between the two DB's... but this sort of defeats the purpose of true hybrid PV generation that blends seamlessly with the grid supply.
I believe you’re misinformed. I’ve seen many other systems installed with COC,s not having to jump through such hoops. As mentioned I’d love to see these regulations if you know where they are?