I don’t think it’s producing chlorine all the time. I think when it’s pulling 78 watts it’s producing chlorine and when it’s pulling 11 watts it’s just resting. You should be able to look in the cell and see little bubbles forming around the plates when it’s actually generating chlorine.
When I loggin back in it was 78,..But I have watched it every few minutes for a hour ( blame COVAD and working from home ) and it never drops.
If I put it at full strength it was around 200 watts..Definitely pulls more power as I add more bars