OP
solar warrrior
Its a 15yr old old style DNO meter and YES it stops dead when there is an equilibrium or if the grid voltage is <= 235vAC it can be seen going backwards on occasion if generation is greater than demand ..............
That is more like what I experience on my home built unit. Sometimes stopped and sometimes going slowly backwards i.e. exporting say 30W. I doubt anyone will be ever able to achieve completely stopped all the time as varying house power factors and calibration errors make it impossible unless they are using instrument grade measurements of power which these devices can’t do at this price.