keithh

Some interesting reading from SSEG.org.za
https://www.sseg.org.za/municipality/city-of-johannesburg-metropolitan/

Maybe old.....
City-Power-Embedded-PV-Generation-Application-Form-V2.pdf City_Power_Install_Standards.pdf

There are no official regs for Johannesburg/Gauteng

Confusion reigns. Can I suggest that you contact City Power and/or your ward councilor. Keep copies of the correspondence - it may be helpful at some point to show that you did ask the question and what the responses were.

We should expect that a proper spec and a certification process will be imposed at some point. City Power can't allow just any old hardware to be connected to their grid. It's not an unreasonable requirement, but it would be very helpful if policy was clearly communicated. I have had City Power at my place at least twice, checking to see if I have bypassed my meter. I've shown them the panels on my roof, they've inspected my meter, I can show them a large credit on the pre-paid meter. The staff sent out to investigate just shrug - which doesn't help anybody.

I also suggest that you don't try to feed surplus PV back into the grid. The official way to do this involves a reseller's tariff, and I struggle to see how anybody with a domestic PV system can do anything bar lose money on that tariff (which may be the point). Also some meters can't tell which way the energy is flowing, or don't take kindly to current flowing anyway but from the grid to your DB.

I have only started to look a using wind to generate power as i would like to move to the KZN coast and not sure how well the solar works there with the clouds but the wind does seem to blow often. So I will follow this project to see how this can be added to my future system. Thank you for the great information so far.