Net metering config
Posted: Sat Sep 16, 2023 7:37 pm
I'm in the process of having a grid-tied solar system installed. The electrician came by today and was kind enough to run one of the legs of the supply side tap coming from the inverters through a spare 80A donut CT. When the tap was installed on the feeders, the existing split-200 CTs were moved to a position before the tap (meter side) so they should be seeing consumption from the grid as well as excess pushed back to the grid. (Rough approximation of current setup below). I won't have panels installed until sometime next week then will have to wait on PTO from the power company before I start seeing power from the panels, so I don't have any live data yet, but I'd like to get the GEM configured ahead of time so I can hit the ground running.
How should I be setting up the channels in the GEM in order to get the proper readings from the 3 CTs in play here (2 split 200s on the supply lines from the meter before the tap and 1 donut 80 on a single leg of the supply from the solar array)? I'd also like to ensure I can feed consumption and production numbers in to Home Assistant (current publishing BIN packets to a listener in NodeRed to push to HA via MQTT)
How should I be setting up the channels in the GEM in order to get the proper readings from the 3 CTs in play here (2 split 200s on the supply lines from the meter before the tap and 1 donut 80 on a single leg of the supply from the solar array)? I'd also like to ensure I can feed consumption and production numbers in to Home Assistant (current publishing BIN packets to a listener in NodeRed to push to HA via MQTT)
Code: Select all
Solar Leg 1 ----Donut 80-------|
Grid Leg 1 =====Split 200======|========Main Breaker
Grid Leg 2=====Split 200=======|========Main Breaker
Solar Leg 2--------------------|