Maximum use of own produced energy - shelly, automatation

Hey there,
i try to use the own produced energy of my pv-plant.
For measurement of the pv plant and the used energy i use a shelly 3PM.

Now i want to use as much as energy in my own house, instead of feeding into the grid.

I started with one shelly plug s an switching the plug s on, if there is enough energy from the plant.
Now i want to start different plug s in a row, depending of the excess energy.

  1. a heater, 2. a heating-rod, 3. a wall-box

Thanks for your help!