GoofGoof
Premium Member
I'm not sure I follow. In all of the cases I've seen the meters are setup so that the run forward and backward. At times when you are drawing power they run forward (like a traditional meter), at times when you are dumping power on the grid they run backward. It results in a net power taken/given that you then pay for at your retail rate. I've never seen an arrangement where there are different retail rates being applied. You would need a smart meter that could keep track of the times of the day when power flows in/out. That technology exists, but I've never seen it in practice. In several states the incumbent utilities are fighting for additional charges for residential solar customers.@Nubs70 has it right here, The net metering agreements in my state are heavily biased against the solar interconnect. Basically they pay you the LOWEST retail rate and in exchange charge you the highest retail rate, So battery systems are fairly popular in the solar community at least in my state (which has a legacy of corrupt practices in power sales and regulation) in many instances its cheaper to fire up a natural gas powered home generator than buy from the 'grid'.
So in many of the larger solar systems you have panels/batts/genset combos.