I've uprated 'overcast' from 1/4 to 1/3 generation.  I'd forgotten that my power is likely to hit max a little after the middle of the day as my roof isn't directly south.  I'm at about 600W generation now.  (I think my max will be around 18-19KW under ideal conditions)

600W is enough for background, but if I cook toast I go well over.  I was surprised how much difference it made to power use if I turned down the grill temperature by one point.

It pays to remember that the relationship between temperature and the energy required to reach it is definitely NOT linear.