First time for me to see this set up a little strange to me until I realized what they were doing second image are the panels that were on the other side of the wall from the meters
Years ago they did this in our area .
They had a special reduced price for electric heating
You will find them on older solar-electrical systems occasionally. One is for a “net-use” meter.
I have two Meters on my home one for the hydro I use and one for the hydro I sell too the hydro from my solar collector .
This one was for Geo heat pump with electric water heater that is why I like this job something different on every inspection ya just have to look for it
And there I thought it was for the honest operator of a growups…
I have the secondary meter as well for my heat pump. Half price from October 1st through March 31st.