Implement 'minimum charge' level of appliances regardless of solar power

[InventoCasa]

• For certain appliances with batteries (like EVs), it could be nice to define to which level they should be charged to regardless of solar power.
• For other appliances who are coupled to a numerical sensor (like a heatpump in combination with a temperature sensor), it could also be nice to define a level/threshold, to which they should keep running regardless of solar power.

Implementation TODOs:

• Blueprint: New variable: 'numerical sensor' for e.g. battery level or temp sensor of appliance
• Blueprint: New variable: 'Min. Level' (always, regardless of solar power, run the appliance till the min. level is reached)
• Blueprint: New variable: 'Solar cut off' (only run the appliance with solar power till a certain level if reached)
• Blueprint: New variable: 'Home Battery SetCurrent' (to prevent appliances drawing from battery to reach min. charge )
• Pyscript: Implement Logic

[CommanderROR9]

As discussed in the HA Forums...it would be pretty cool to augment this Blueprint in a way that allows it to not only use excess solar but also cheap energy from energy providers like Tibber that use variable prices.
There are ways to create a Binary Sensor that turns "On" when electricity is particularly cheap in the current 24h frame. I use this combined with Solcast Solar forecast and a "Charge Required" metric to make sure my home solar battery is always used, either to store solar power or to store cheap grid energy.